WO2004022805A1 - High-strength copper alloy - Google Patents

Abstract

A high-strength copper alloy which is excellent in mechanical properties, processability, corrosion resistance, etc. and is satisfactory in profitability. It is a rolled material which has an alloy composition comprising 4 to 19 mass% zinc, 0.5 to 2.5 mass% silicon, and copper as the remainder, the contents of zinc and silicon satisfying the relationship 0≤Zn-2.5·Si≤15 (mass%), and which has a crystal structure having an average crystal grain diameter D of 0.3 to 3.5 µm and has a 0.2% proof stress of 250 N/mm2 or higher in the recrystallized state.

Description

Title of invention

Technical field

 The present invention relates to a high-strength copper used as a lead for electric, electronic, communication, information, H-law devices, automobiles, etc., such as leads, switches, connectors, relays, and sliding pieces. is there. Light

Background art

 Fine

 In ~ ¾, high-strength copper shelves are used for electrical, electronic, communication, information, tn-law equipment, automobiles, and other leads, switches, connectors, relays, and sliding pieces. With the recent miniaturization, m.it, and high performance of ultra-high density, extremely strict glue improvement is also required for genuine materials such as leads, switches, connectors and so on. Have been. For example, the spring contact part of the connector is a force that can be shelved. The high-strength copper that constitutes such an ultra-thin plate requires a high degree of strength in order to reduce its thickness. It has a high balance with the ductility to begin with, viable bacterial growth, excellent economical efficiency, and conductivity, corrosion resistance (stress decay: ^ IJ, anti-zinc corrosion, migration resistance), stress relaxation It is required that there be no problems in properties, solderability, abrasion resistance, etc.

By the way, high-strength copper ^^ generally includes beryllium copper, titanium copper, aluminum grape, rye gong, nickel silver, brass and brass power with Sn, Ni added ^s well-known power ^s , The HI-like high-role alloy has the following problems and cannot meet the above requirements.

In other words, beryllium copper, the copper ^^, but those with the highest strength is always detrimental to beryllium ^Ca? Human body (in particular, a beryllium vapor poles also very dangerous in molten扰態any) for waste disposal beryllium copper咅附or products containing them (especially incineration) is difficult, initial cost power ^s very high required dissolution equipment used to «. Therefore, there is a problem in economical efficiency including cost, in combination with the necessity of solution treatment in the final stage for obtaining predetermined characteristics.

Titanium copper has the second highest strength than beryllium copper, but since titanium is active, expensive melting equipment is required, which is a problem in quality improvement during melting. Therefore, as in the case of beryllium copper, there is a problem in economy due to the necessity of solution treatment in the final stage of $ ¾t. In addition, aluminum Wl same, because the aluminum is tongue 14¾ prime, is that the force ^s difficult to obtain a ^ a铸塊, also there is a solderability also problems such as bad.

 In addition, Rinjindo and Yoshiro are made of tandem fiber because of their high hot workability and difficulty in hot work. Therefore, productivity is high and energy costs are high! In addition, high-strength representative varieties such as Ringen for spring and nickel white for spring contain a large amount of expensive Sn and Ni, which poses a problem in economics.

 Brass and brass to which Si and Ni are added are ^ ffi. The strength is unsatisfactory, and there is a problem in corrosion resistance (stress corrosion IJ and β! & Corrosion). It is unsuitable as a product structure for improving performance.

 Therefore, such high-strength copper alloys are not completely satisfactory as components for various types of equipment that tend to be miniaturized and have high performance, as described above. Development is strongly demanded.

The present inventor believes that 0.2% ttt) (the bow jewel when the permanent set becomes 0.2%, and in the following, it may be simply !! th power (D one ¹⁾ rises in proportion to, that hole 'Betti.... (Hall - Petch ) relation (E. 0. Hall, Proc Phys Soc London 64 (1951) 747. and NJ. Paying attention to Petch, J. Iron Steel Inst. 174 (1953) 25.), obtaining the high strength required to add ΐ one more blue by refining the crystal grains Considering the power, we conducted various researches, experiments, and experiments on fine-grained crystal grains. As a result, crystal grains can be refined by recrystallizing ^^ depending on the added element, and the crystal grains (recrystallized grains) can be refined to a certain size ij ^ or less by 0.2% In particular, the strength mainly of the steel can be remarkably improved, and the strength increases as the size of the crystal tree decreases. Furthermore, various experiments were conducted on the list of added elements in the refinement of crystal grains, and the addition of Si to Cu_Zn alloy has the effect of increasing the number of nucleus sites, and furthermore, the effect of Cu— The addition of C 0 to Zn—Si alloy has the effect of suppressing the rice grain length. By using these effects, 、 Cu—Zn— It was clarified that Si-based ^ X can obtain Cu-Zn-Si-Co-based alloy. In other words, the increase in the number of nuclei sites is thought to be caused by the decrease in stacking fault energy due to the addition of Si, and the suppression of rice growth is thought to be due to the formation of fine precipitates due to the addition of Co.

The present invention has been made based on such findings, and is excellent in mechanical properties, strength, corrosion resistance, and the like. This is a new high-strength copper alloy that has no problem in terms of economic efficiency. It can be used especially as a component for various equipment that is becoming smaller, more compact, and more sophisticated. The purpose is to provide a high-strength copper with extremely high 性 m properties that can be used for a wide range of applications.

 That is, first, the present invention is mainly used as a material that requires high strength (plate material, strip material, wire material, etc.) or a processed material thereof (press-formed product, bent product, etc.). (Hereinafter referred to as "first invention copper ^^"). In addition, products and parts that can use the first invention copper ^^ as a genius can be used in electronic devices used in wide-area, small-sized telecommunications, personal computers, etc., which are required to be thin-walled and carnized. Parts, medical equipment parts, moon parts, machine parts, heat ^! Tube sheets, seawater cooling devices and small white parts etc. There are various price components, playground equipment, daily necessities, etc. Specifically, connectors, relays, switches, sockets, panels, gears, pins, washers, game coins, keys, tumblers, buttons, and hotspots are available. Clamps, fasteners, diaphragms, bellows, sliding pieces, bearings, sliding pieces for volumes, bushings, fuse grips, lead frames, counterweights, etc.

 Secondly, the present invention does not require strength mainly for the copper required for the first invention copper alloy, but requires a highly balanced strength and conductivity. The purpose is to share high-strength copper (hereinafter referred to as the “second invention copper alloy”) as a material (plate material, strip material, wire material, etc.) or as a material for caro (press-formed product, bent product, etc.). And In addition, products and parts that can be decorated with the second invention copper ^^ as a genius include various equipment parts for automobiles, information products that require conductivity,

Products, household electric appliance parts, heat pipe sheets, seawater cooling system ゃ Onada '等 等 入口 入口 入口 入口 入口 入口 が が が t が が t t , Connectors, switches, relays, bushings, fuse grips, lead frames, roosters, springs, keys, tumblers, buttons, hooks, fasteners, diaphragms, bellows, sliding pieces, bearings, play rope coins, etc. You.

Thirdly, the present invention mainly relates to a drawn wire material (a target wire material having a circular cross section, a cross-sectional work shape (square, polygonal) which requires the same high strength as the first invention copper ^^. The purpose is to share a high-strength drama (hereinafter referred to as the " ^third invention copper") that is shelved in the haze as a deformed wire (such as hexagonal 腾) or its karoe (bent processed product). The products and parts that can use the third invention copper as a genius are parts of medical equipment, parts of wisteria, parts of wisteria, parts of luster, trees, parts for leisure, various m parts for automobiles, etc. There are two types: electronic devices, electronic devices, electronic devices, and connectors. Specifically, connectors, keys, headers, nails (such as nails for play equipment), washers, pins, screws, coil springs, lead screws, Shafts for copying, wire mesh (cooling device using wire mesh or seawater, filters for seawater intake and outlet in small M white, etc.), sliding pieces, bearings, bolts, etc. can be mentioned.

Thus, the first invention copper ^^ has a Zn content of 4 to 19 ma ss% (preferably 6 to 15 ma ss%, more preferably 7 to 13 ma ss%) and 0.5 to 2.5 ma ss%. (Preferably 0.9 to 2.3 mass%, more preferably 1.3 to 2.2 mass%) and Zn—2.5-Si = 0 to 15ma ss% (preferably. 1 to 12 mass%, more preferably. 2 to 9 mass%) with forming the content to and歹¾¾ consists Cu ^ ⁵ Makoto to have the relationship, the mean binding Akiratsubu径D is 0, 3 ^ m ≤ D ≤ 3.5 m (preferably 0.3 m ≤ D ≤ 2.5 m, more preferably 0.3 m ≤ D ≤ 2 m) None has, it is an冓成that the 0. 2% K¾ force ^s 250 N / mm ² or more in the recrystallized state (preferably 300 N / mm ² or higher).

The copper alloy of the second invention has a Zn content of 4 to 17 mass% (preferably 5 to L 3 mass%, more preferably 6 to 11.5 mass%) and 0.1 to 0.8 mass%. % (Preferably 0.2-0.6 ma ss%, more preferably 0.2-0.5 ma ss%) and Z n—2.5 -S i = 2 115 ma ss% (preferably 4-12 ma ss%, more preferably 5-10 ma ss%), and the average crystal is particle diameter D is 0. 3μΐη≤Ό≤3. 5 m (preferably 0. S / ^ m ^ DS / ^ more preferably _{m 0. 3 Λ m≤D≤ 2. 5 ^} m) a crystal sets Hara The 0.2% proof stress in the recrystallized state is 250 N / mm ² or more (preferably 300 NZmm ² or more).

Further, the third invention copper ^^ is composed of 66-76 ma ss% (preferably 68-75.5 mass%) of Cu and 21-33 ma ss% (preferably 22-31111335%) of 2] 1 and 0. 5 to 2 ma ss% (preferably 0.8 to 1.8 ma ss%, more preferably:! To 1.7 ma ss%), and Cu—5 · S i = 62 ~ 67ma ss% (preferably Cu_5Si = 63 ~ 66.5ma ss%) and Zn + 6Si = 32 ~ 38ma ss% (preferably Zn + 6Si = 33 ~ 37ma ss%) And the average grain size D is 0.3〃m≤D≤3.5 m (preferably 0.3 m≤D≤3 m, It is preferably 0.3 m ≤ D2.5 m), and the 0.2% movement in the recrystallized state is 250 N / mm ² or more (preferably 300 N / mm ²以上 W is defined as W. «The average crystal grain size of 0% and 0.2% in the copper alloy is resistant to recrystallization of a part or all of the alloy structure.» When the recrystallization process is performed several times, The average grain size of the material (hereinafter referred to as “recrystallized material”) obtained by the last recrystallization treatment (hereinafter referred to as “final crystallization process”) is 0.2%. It is specified by. When the recrystallization process is performed only once, it is needless to say that the process is the: 11 winter recrystallization process and the evacuation is a crystal material.

 Jomei copper alloy is in a preferred form of difficulty,

 (1) The lump is processed into a dog by plastic karoe including hot working (j ± ¾, extrusion, forging, etc.) and ζ or cold working o, wire drawing. Recrystallized material obtained by recrystallization treatment (final recrystallization treatment) by quenching (final recrystallization, etc.) (mainly the first and second invention copper alloys are rolled materials, and the third invention Copper alloy is a wire drawing material),

(2) A cold-worked material obtained by cold-working (j, drawing) the recrystallized material of the above (1) to a predetermined dog (mainly, the first and second invention copper are brilliant, The third invention copper alloy is a wire drawn material),

 (3) A product obtained by subjecting the recrystallized material of (1) above to a predetermined product by pre-curling, bending, etc. ^^!

(4) The product strength obtained by processing the cold-worked material of (2) above into a predetermined product 开 ^ I dog by press working, bending, etc. 等

$ F is shared in either form.

 In the first invention copper alloy, in order to further improve the characteristics, 0.005 to 0.5 ma ss% (preferably 0.01 to 0.3 ma ss%, more preferably 0.02 to 0 2ma ss%) C

Further contains Sn of 0 and Z or 0.03 to 1.5 ma ss% (preferably 0.05 to 0.7 ma ss%, more preferably 0.05 to 0.5 ma ss%). It is preferable to have an alloy composition.

In this case, the content of (0 and 311 is taken into consideration in consideration of the content of Si in the above-mentioned fiber. That is, the content of Co is a value obtained by dividing this by the content of Si. / S i is 0.005 to 0.5 (preferably Co / S i = 0.01 to 0.3, more preferably Co / S i = 0.03 to 0.2). The Sn content is a value obtained by dividing the Si content by the content, and S i / Sn is 1.5 or more (preferably S i / S n ≥2, more preferably S i / S n n≥3). Further, in the first invention copper alloy, 0.005 to 0.3 mass% (preferably 0.01 to 0.2 mass%) Fe and / or 0.005 to 0.3 mass% (preferably 0. .01 to 0.2 mass%) may further be contained as a co-element of Co or as a co-addition element with Co.

 In this case, the Fe content or the Ni content is determined in consideration of the Si content (when co-added with C 0, the Si content and the Co content). In other words, the content of Fe and Ni is the value obtained by dividing the synonymous content including the case where Co is contained by the content of Si (Fe + N i + Co) / S i is 0.005. ~ 0.5 (preferably (Fe + N i + Co) / S i = 0.01 to 0.3, more preferably (Fe + N i + Co) / S i = 0.03 to 0.2) So that In making such a determination, the total content (F e + N i + C 0) determined is 0.005 to 0.55 mass% (preferably 0.01 to 0.35 mass%, more preferably Is 0.02 to 0.25ma ss%).

 In the second invention copper ^^, in order to further improve the characteristics, 0.005 to 0.5 ma ss% (preferably 0.01 to 0.3 ma ss%, more preferably 0.02 to 0.2 mass%) of Co and Z or 0.2 to 3 mass% (preferably 1 to 2.6 mass%, more preferably 1.2 ′ to 2.5 mass%) of Sn. It is preferable to be sincere. In this case, the Co content and the Sn content are determined in consideration of the relationship with the Si content. That is, within the above range, the Co content is a value obtained by dividing the Co content by the Si content. Co / Si is 0.02 to: 1.5 (preferably Co / Si = 0. 04 to 1, more preferably Co / S i = 0.06 to 0.5). Further, the Sn content is a value obtained by dividing the Si content by the Sn content within the above-mentioned range, and the value S i / Sn is 0.5 or less (preferably, S i / S n ≤ 0.4, Preferably, f i is set so that S iZSn ≤ 0.3).

Further, in the second invention copper, instead of or together with Co, Q.005 to 0.3mass% (more preferably 0.01 to 0.2mass%) Fe and / or 0.005mass%. Ni of 0.3 to 0.3 mass% (more preferably 0.01 to 0.2 mass%) can be contained. In this case, the Fe content * X and the Ni content are determined in consideration of the Si content (when co-added with Co, the Si content and the Co content). That is, the content of Fe and Ni is the value obtained by dividing the total content including the case where Co is contained by the content of Si (F e + N i + C 0) / S i from 0.02 to 1 .5 (preferably (Fe + N i + Co) / S i = 0.04 to 1, more preferably (F e + N i + Co) / S i = 0.06 to 0.5) Is determined. In doing such Is the total content (Fe + Ni + Co) power ^s 0.005 to 0.55 mass% (preferably 0.01 to 0.35 mass%, more preferably 0.02 to 0.25 mass%) %) Is desirable.

 Further, in the first and second invention coppers, P, Sb, As, Sr, Mg, Y, Cr, La, Ti, Mn, Zr , In, Hf can contain one or more elements scaled down. The content of each of these elements is determined in the range of 0.003 to 0.3 mass%, as follows:

In the third invention copper ^^, in order to further improve the characteristic I production, 0.005 to 0.3 mass% (preferably 0.01 to 0.2 mass%, more preferably 0.1 mass%). 02-0.15ma ss%) and / or 0.03-lma ss% (preferably 0.05-0.7ma ss%, more preferably 0.05-0.5ma ss%) the sn, it is preferable to assume that further form a ^ ¹ Makoto containing.

In this case, the contents of Co and Sn are determined in consideration of the Si content in the above description. That is, the C0 content is the value obtained by dividing this by the Si content, and C0 / Si is 0.005 to 0.4 (preferably Co / Si = 0.01 to 0.2). , And more preferably, Co / S i = 0.02-0.15). In addition, the Sn content is a value obtained by dividing the Si content by the content, S 1311 is 1 or more (preferably S i / Sn ≥ 1.5, more preferably S i / Sn ≥ 2). Is determined as follows. Further, in the third invention copper ^^, as an element of Co or as a co-addition element with Co, 0.005 to 0.3mass% (preferably 0.01 to 0.2mass%) of Fe and And / or 0.05% to 0.3mass% (preferably 0.01 to 0.2mass%) of Ni can be contained ⁵ '.

In this case, the Fe content or the Ni content is determined in consideration of the Si content (when co-added with Co, the Si content and the Co content). That is, the content of Fe and Ni is a value obtained by dividing the total content including the case of containing Co by the content of Si (Fe + Ni + C0) / Si force ^s 0.005 to 0.005. 4 (preferably (Fe + Ni + Co) ZSi = 0.01 to 0.2, more preferably (Fe + Ni + Co) /Si=0.02 to 0.15) Is determined. In making such a determination, the total content (Fe + N i + Co) edited should be between 0.005 and 0.35mass%.

(Preferably 0.01 to 0.25 ma ss%, more preferably 0.02 to 0.2 ma ss%). Further, in the third invention copper ^, each of 0.005 to 0.2mass% of P, Sb and As and each of 0.003 to 0.3mass% of Sr, Mg, Y, Cr, When one or more elements selected from L a, T i, M n, Z r, In and H f are contained in one or more of P, Sb and As depending on the required properties. An alloy fiber can be further contained so that the total content thereof is 0.005 to 0.25 mass%. -By the way, as described above, the strength, especially the 0.2% recommendation, is increased by the refinement of the crystal grains (recrystallized grains). When it was less than 5 m, it was more efficient than when it was over 3.5 m. In addition, when the average crystal grain size D was reduced from 3.5 m to the order t / J, the improvement in proof stress suddenly changed at 3 m, 2.5 ^ m, and 2 m. It was approved. ¾ by such experiments | from Shinobu matter, electric, electronic, communication,耐Ka (the required for parts構戯rhino law machine cranes, and a 25 ONZmm ² or more, the good Mashiku 300 N / mm ² or more) must be an average crystal! ¾D must be 3.5 m or less, and 3 μm or less when a high strength (ittl) is required. In the case where a higher strength is required, it is considered that the thickness is preferably not more than 2.5 μm. In particular, in order to improve the strength as much as possible, the average crystal圣 Keeping D less than 2 m is considered to be powerful. On the other hand, as the average crystal grain D becomes smaller, the movement also improves.According to experiments and experiments, the minimum of the average crystal t¾ 圣 is 0.3 m, which is less than 0.3 μm. Things are expected to be difficult to obtain at the level.

From this point, in the first to third invention copper ^^, in order to secure a resistance to 250 N / mm ² or more (preferably 300 N / mm ² or more), 0.3 m≤D≤ It is said that it is necessary to have a recrystallized basket of 3.5 m. In other words, the average result in the recrystallized state (the state after the final recrystallization process)! It is necessary that the particle size D is 0.3 m ≤ D ≤ 3.5 μm and 0.2% K 250 is 250 N / mm ² or more. In the case where the second and third invention copper alloys are required to have higher strength, it is considered that the copper alloy has a thickness of 0.

It is preferable to keep it. On the other hand, the first invention copper alloy, which has higher strength than the second and third invention coppers, and which is also used for required applications, has a capacity of 0.3; m≤D≤2.5 _Λ More preferably, it should be set to 0.3 m≤D≤2 / m.

In addition, the first to third invention copper ^^ realizes the refinement of crystal grains as described above by recrystallization by an appropriate heat treatment (^: 應). Refinement of grains can be achieved by setting the alloy {J} described above. That is, No .; -In the third invention copper alloy, Zn, Si lowers the stacking fault energy, increases the dislocation density, and increases the number of nuclei sites (locations) for recrystallization, thereby contributing to the refinement of crystal grains. And a function of forming a solid solution in the Cu matrix to contribute to the improvement of the material strength (hereinafter, both functions are referred to as “crystal thinning 'strength improving function”), and their contents are Has been determined as described above for the following reasons.

 In other words, in the first and second invention copper ^^, which are mainly shelved as a brilliant product or a processed material thereof, in order to achieve the functions of crystal thinning and strength improvement due to the inclusion of Zn in 5 minutes, It is necessary that the Zn content be 4 mass% or more, and in order to exhibit the function more effectively, in the first invention copper alloy for which the strength is greatly improved, 6 mass% or more (preferably 7 mass%) is required. mass% or more), and in the second invention copper, which is considered to be slightly inferior in strength to the first invention copper, at least 5 mass% (preferably 6 mass% or more). If the Zn content is too high, the IU will increase and the bending processability will decrease, so the 1-year-old use and the IS power Considering the relationship with the Si content, the Zn content is reduced to 19 ma ss% in the first invention copper alloy. Lower (preferably 15 mass% or less, more preferably 13 mass% or less), and in the second invention copper ^^, 17 mass% or less (preferably 13 mass% or less, more preferably 11.5 mass% or less) It is necessary to keep it.

On the other hand, the function of improving the crystal densification 'strength by containing Si is exhibited with i being much smaller than that of Zn, but is due to mutual use with Zn. In addition, S i can respond to co-addition with Zn, and has an action force ^s that suppresses one life. However, the addition of iifij of Si reduces the conductivity. Considering these points, the first invention copper ^^ to the strength improvement及TO AkiraTatsuki钿化raw eye, it is necessary that force ^s to keep and the S i content 0. 5 ma ss% or more, 0. It should be at least 9 mass% (more preferably 1.3 mass% m ±). However, in the case of the first invention copper ^^, when Si exceeds 2.5 mass%, the conductivity and hot working becomes 14%, and the cold workability becomes poor. In order to ensure a sufficient amount, the Si content is preferably set to 2.3 ma ss% or less, more preferably 2.2 ma ss% or less. On the other hand, in the second invention copper alloy, which emphasizes the balance between strength and conductivity, the Si content must be at least 0.1% in order to exhibit the crystal-densification effect necessary for obtaining the predetermined strength. It is important to keep it at 0.2 ma ss% or more. However, in order to maintain the electrical conductivity in consideration of the balance between strength and strength, it is necessary to keep the Si content to 0.8 mass% or less. To ensure electrical conductivity, it should be 0.6 mass% or less (more preferably, 0.5 mass% or less) Preferably.

 Furthermore, in the copper alloys of the first and second inventions, the force required to balance the effect of crystallization by co-addition of Zn and Si with the strength of 14% of stress corrosion It is not sufficient to determine the Zn, Si content individually ^: within the above range, and the relationship between Zn, Si content is specified by Zn_2_5 · Si. Then, it is necessary to determine the value of the relational expression within a certain range. That is, in order to secure the strength of the sculpture by crystal thinning, the first invention copper alloy needs to have Zn−2.5 · S i ≥0mass%, and Zn−2.5 · S i≥lm ass% (preferably Zn-2.5 · S i≥2 mass%), and in the second copper alloy ^^, Zn-2.5 ''S i≥2ma ss%, and Zn—2.5 · S i ≥4ma ss% (more preferably, Zn—2.5−S i≥5ma ss%). On the other hand, in any of the first and second invention copper alloys, when Zn−2.5 · S i> 15 ma ss%, stress corrosion ij is significantly generated, so that Zn, S i It is necessary to determine the content so that Zn-2.5 · S i ≤ 15 ma ss%. For more effective suppression of stress rot: ftj S i≤l 2ma ss% (more preferably, Zn-2.5 · S i ≤9ma ss% for the first invention copper, Z n-2.5 · S i≤10 mass% for the second invention copper ^^ ) Is preferably determined.

In addition, in the third invention copper, the Zn content is, as in the first and second invention copper, naturally, taking into account the strength improvement function. Further, the third invention copper is mainly used as a drawn wire or a processed product thereof, so it is necessary to take hot extrudability into consideration. 2 invention should be a large amount in comparison with the copper alloy, in order to ensure a sufficient hot extrudability is that the force ⁵ must be a 21 mass% or more. In order to further improve the hot-extrusion drawing, it is more preferable to set the Zn content to 22% by mass or more. The copper alloy of the third invention is inferior in stress corrosion cracking resistance due to its high Zn content compared with the copper of the first and second inventions. (For example, compared to JI S-C2700 (65Cu-35Zn)), Zn content is low, use as Itoizumi ^^, stress rot resistance: f! J Can ^s power. However, in the third invention copper, in order to secure a necessary and sufficient stress KusaKen U Re 14¾ Pi cold workability as wires or the like, mosquitoes can put Z n content as 33 mass% or ^less? Required is there. That is, if the Zn content exceeds 33mass%, the / 3 phase and the α phase are easily drawn, which gives bad workability to cold workability and stress decay: 1'4¾ ぴ 1 »& Corrosion is also a problem. Stress extinguishing U 14 14 For this purpose, the Zn content is preferably set to 31 mass% or less. In the third invention copper ^^, it is necessary to consider the Cu content in order to ensure hot extrudability and cold workability. If the Cu content is less than 66 mass%, the / 3 phase and the γ phase曳留to facilitate, cold workability becomes a problem, if it exceeds 76 mass% to the contrary, the hot extrusion force ^s difficult. Therefore, it is necessary to keep the Cu content at 66-76 ma ss%, and to ensure sufficient cold workability and hot extrudability, it is important to keep the Cu content at 68-75.5 ma ss%. .

Further, as described above, Si has a function of improving crystal crystallization and strength by co-addition with Zn, and

It exerts the suppression function. Therefore, also in the third invention copper, which is a wire drawing material, the Si content needs to be 0.5 mass% or more, as in the first invention copper, mainly for the function of improving the crystal thinning 'strength. Considering that the material is a drawn wire, it is preferably 0.8 mass% or more, and more preferably 1 mass% or more. However, if the Si content exceeds 2 mass%, a phase and foveals, which are factors inhibiting cold workability, precipitate. Therefore, in order to ensure the cold Karoe resistance, it is necessary to the S i content is 2 mass% or less, considering that contained in Z 11 ^months? Multimeric, 1. 8 mass% or less More preferably, it is more preferably 1.7 mass% or less.

Furthermore, in the third invention copper ^^, in order to ensure sufficient hot extrudability and cold working, lightning stress corrosion resistance, the Cu, Si, and Zn contents must be independently controlled. However, it is not enough to perform the determination in consideration of the relationship between the S ′ i content and the Cu content and Zn content. In the correlation between the Cu and Si content, C 11-531 = 62 to 6 7111 _& 3 3%, and 211, and the Cu, Si, and Zn contents are adjusted so that Zn + 6 · Si = 32 to 38mass% in the correlation of the Si content. You need to decide. That is, even if the Cu, Si, and Zn contents are within the above ranges, respectively, the correlation between the Cu and Si contents is Cu_5S i> 67mass%, or the mutual relation between the Zn and Si contents. When the relationship is Z η + 6 'S i, 32 ma ss%, good hot workability cannot be ensured. Conversely, Cu—5 S i <62 ma ss% or Zn + 6S i> When it is 38, the Zn and S 1 content at the grain boundaries increases or the cold workability increases due to easy retention of the /? And α phases. ! Depending on the application! Corrosion problems are also likely to occur. Further, in order to avoid such a problem and to secure cold calorie property and stress rot resistance more sufficiently, Cu—5S i = 63 to 66.5mass% and Zn + It is preferable to determine the contents of Cu, Si, and Zn so that 63 · = 33 to 37πι & 33%.

By the way, the crystal grains grow as the ¾J rises or as ^! In the crystallization process, not all parts are recrystallized at the same time, but it is easy to recrystallize, recrystallization starts from the part, and it takes a long time to complete the recrystallization force ^S in knitting . Thus, the recrystallized grains at the beginning of the recrystallization process will start to grow by the end of the recrystallization process in winter, and will grow considerably when the set recrystallizes to. Therefore, in order to uniformly distribute fine recrystallized grains in the swelling, it is preferable to suppress the growth of recrystallized grains during the recrystallization process. Co has a function of controlling such recrystallized grains, and this is the reason why Co is added to the first to third invention coppers. In other words, Co bonds with Si to form fine precipitates (such as Co ₂ Si of about 0.01 μm), thereby suppressing the growth of crystal grains. To be grain growth鄉唰function forces volatilized by Co is that ^mosquito? Necessary to the a C 0 content 0. 005 mass% or more. However, the amount of Co added does not contribute to the formation of the above-mentioned precipitates, but the solid solution of c¾ of ~ ¾ improves the matrix and improves the stress relaxation characteristics. Will be. Therefore, in order to sufficiently exert such functions of improving the metastatic property and the stress relaxation property, the C 0 content of 0.01 to 0.01 of the first to third copper alloys must be reduced. It is preferably set to not less than mass%, more preferably not less than 0.02 mass%. On the other hand, in the first and second invention copper alloys, even if Co is added in excess of 0.5 mass%, and in the third invention copper alloy, Co is added in excess of 0.3 mass%. Nevertheless, the required effect of suppressing the formation of crystal grains and improving the effect of stress reduction are clear and do not improve any further, and are economically wasteful. There is a possibility that bending workability may be deteriorated due to excessive formation or excessive amount of precipitates. As a result, the Co content needs to be 0.5 mass% or less in the first and second invention copper alloys, and 0.3 mass% or less in the third invention copper ^^. In order to sufficiently exert the required force ^s and the above functions ^) and to sufficiently secure the required bending workability, the first and second invention copper require 0.3 ma. s Force to be kept at 3% or less Force, more preferably force to be 0.2 mass% or less, and more preferably force to be 0.2 mass% or less for the third invention copper alloy More preferably, it is set to 0.15 mass% or less.

In addition, since Co has a close relationship with Si in reducing the crystal grain size, it is necessary to determine the Co content in relation to the Si content. In order to improve the required strength, the Co content should be adjusted so that the ratio Co / S i to the Si content becomes 0.005 or more in the first and third invention copper alloys. It is important to determine the second invention copper so that it becomes 0.02 or more. That is, if Co / Si does not reach these values, the composition of the above-mentioned copper alloy is small and the effect of controlling the formation of crystal grains is not controlled. Ii ± It is difficult to obtain the required strength. Further, in order to sufficiently exert the calming effect of the crystal grains and further improve the strength, it is preferable that Co / Si is 0.01 or more in the first and third invention coppers, More preferably, it is 0.02 or more. Further, in the second invention copper, it is preferably 0.04 or more, more preferably 0.06 or more.

As described above, the value 0 should be determined so that the Co / Si force s becomes a certain value or more as described above in relation to the Si content, but the Co / Si force is more than necessary. If it becomes larger, the above mentioned products will be coarsened and increased in volume, impeding bending workability. For example, if Co / Si exceeds 0.4 in the first invention copper ^^, which is a thigh, and 0.4 in the third invention copper, which is a wire drawing material or a product material thereof, bending occurs. Workability sharply decreases. Further, it is necessary to improve the strength to the extent that the first invention copper ^^^ is required.In the second invention copper used for applications, if Co / Si exceeds 1.5, It becomes difficult to secure the required minimum bending workability. Therefore, the upper limit of Co / S i is compared with this point and the effect of Co crystal elimination P ^^! : In addition to this, the decision should be made in consideration of the intended use of the copper and the 加 jg and 开 ^ 1 dogs. Specifically, the range of Co / Si is as follows: It is determined. That is, the upper limit of the Co / S i is first invention copper餘near connexion is that force necessary to the C o / S i≤0. 5, CoZS i≤0. 3 and that force ^s preferable to keep, Co / S i ≤ 0.2. Further, in the second invention copper ^, the force ^{s is} required to be set to Co / S i≤l.5, and the force is set to be Co / S i≤l. The power to keep is ^S S¾. Also In the third aspect copper ^^, Co / S i ≤0. 4 and is that ^mosquito? A need to, CoZS i≤0. 2 and to keep it forces operators Mashiku, CoZ S i≤0. 15 The power to keep is ¾g.

Fe and Ni exhibit the same crystal ¾3Φ control effect as Co (more precisely, the effect of Fe and Ni is less than or equal to C 0). It was but ', connexion, Fe Ni, it forces ^s is contained in the t ¾ element of Co' can. Of course, by co-adding Fe and Ni with C 0, a further improvement in the above effects can be expected. It is expensive to add Fe and Z or Ni instead of or together with C0.

The economic effect by reducing the content of 0 is large. Relationship between Fe, Ni content and Si content when Fe and Ni are contained (Co + Fe + Ni) / Si is expressed as Co content »¾ ぴ 3 i content and For the same reason as described above for Co / Si, the Fe and Ni contents are assumed to be the same as the Co contents in any of the first to third invention copper ^^, and (Fe + Ni + Co ) Same as ZS i ¾C o / S i. That is, (Fe + Ni + Co) / S i is 0.05 to 0.5 (preferably 0.01 to 0.3, more preferably 0.002 to 0.2) in the first invention copper ^^. ) And the second In the invention copper alloy, it is 0.02 to 1.5 (preferably 0.04 to 1, more preferably 0.06 to 0.5), and in the third invention copper, it is 0.005 to 0.4 (preferably 0.4 to 0.5). 01 to 0.2, more preferably 0.02 to 0.15). By the way, Fe and Ni can be f elements of Co and exert the same function as Co. Therefore, when two or more of Fe, Ni and Co are added together, However, their total content should be equal to the content when only Co is added to the insects (the content of self-edited Co). However, when two or more of Fe, Ni, and Co are co-added, the upper limit of the co-added content (total content) of Fe, Ni, and Co is higher than the Co content in consideration of solid solution and precipitation. Can be increased by about 0.05 mass%. From this point, when two or more of Fe, Ni, and Co are co-added, the total content (Fe + Ni + Co) and the upper limit of the Co content are set to 0. It was determined that it was desirable to increase the range by 05 mass%. That is, the total content (F e + Ν i + C 0) force ^s of the first and second invention copper ^^ is 0.005 to 0.55 ma ss% (preferably 0.01 to 0. 35 ma ss%, more preferably 0.02 to 0.25 ma ss%), and in the third invention copper alloy, 0.005 to 0.35 mass s% (preferably 0.01 to 0.25 ma ss%). And more preferably 0.02 to 0.2 mass%).

 Sn exerts functions such as strength improvement, crystal fiber shiroku and IS force relaxation properties, corrosion resistance, and wear resistance. Thus, in the first and third invention copper alloys, the strength improving function, ^

The Sn content must be at least 0.03 mass% in order to fully exhibit the function to improve the performance of the matrix and the properties of the matrix, stress relaxation characteristics, corrosion resistance, and abrasion resistance. It should be at least mass%. However, when the Sn content exceeds 1.5% in the first invention copper ^^, which is a copper alloy, and exceeds 1 mass% in the third invention copper ^^, which is a wire drawing material, bending workability is increased. It drops sharply. Therefore, in order to ensure bending workability, it is necessary that the Sn content be 1.5 mAs s% or less in the first invention copper and 1 mA s s% or less in the third invention copper. In both the first and third invention coppers, in order to ensure sufficient bending workability, the content of 311 should be set to 0.7 mass% or less. It is the power to keep it below 5mass%.

On the other hand, in the case of the second invention copper, whose required minimum strength is lower than that of the first and third invention coppers, taking into account the relationship with the Si content, the strength is improved by adding Sn, the crystal is refined, improvement of the stress relaxation characteristics, anti-stress corrosion ^ Y is resistance, corrosion resistance, it is preferable to improve the abrasion resistance, for which is that the ^force? necessary to the the Sn content 0. 2ma ss% or more, 1 mass% or less depending on the required strength It is also important to keep it above 1.2mass 3%. However, if 511 is added in excess of 311133 3%, hot workability is impaired, and bending workability is also deteriorated. Therefore, the Sn content must be 3 mass% or less in order to ensure such calo workability. In order to ensure better hot workability and bending workability, 2.6 ma ss % Or less, and more preferably 2.5 mass% or less.

In addition, when Sn is forgiven, its content must be considered in relation to the Si content (SiZSn). In the copper of the first invention, whose main purpose is to improve the strength, in order to obtain a high strength by increasing the Si content, if S i / Sn <l. The ductility will be significantly reduced. Therefore, in the first invention copper ^^, it is necessary to make the Sn content f½ so that S i / Sn ≧ l.5, and in order to sufficiently secure the above ductility, S i / S n ≧ Power to keep as 2 ¾ Power to keep as S iZSn ^ S. Further, in the third invention copper ^^ in which the Sn content is slightly smaller than the first invention copper ^^, the Sn content is determined to be S i / S n ≥ 1 for the same reason as described above. must, in order to sufficiently ensure the ductility is S i / Sn≥l. 5 and to keep it forces operators preferred, it forces ^s to keep the S i / Sn≥2.

 On the other hand, in the case of the second invention copper ^^, which is required to have conductivity balanced with strength, since it is restricted by the opening of Si, it is necessary to secure high strength without greatly impairing ductility. It is necessary to set the Sn content so that S i / S n ≤ 0.5 in relation to the Si content. In order to further improve ductility and strength, it is necessary to set S i / Sn ≤ 0.4, and to set S i / S n ≤ 0.3.

P, Sb, As, Sr, Mg, Y, Cr, La, Ti, Mn, Zr, In, and 、 are determined according to the intended use of ^^. Demonstrates effects such as miniaturization of steel, improvement of hot workability, improvement of corrosion resistance, action to make bacterium * nitrogen (S, etc.) inevitably more harmless and improvement of IS force mitigation properties I do. If the content of each element is less than 0.003 ma ss%, it is almost impossible to wait. Conversely, if the content exceeds 0.3 ma ss% and the amount of each element is reduced, the effect commensurate with the added amount is obtained. This is economically wasteful, and rather impairs bending workability. However, in the third invention copper having a high Zn content, particularly, P, Sb and 83 are added for the purpose of improving hemp lead corrosion resistance and stress corrosion resistance. The effect of P, Sb, and As, which are excited for such a purpose, is hardly exhibited when the excitation is less than 0.005%, as in the above case. On the other hand, if the P content exceeds 0.2 mass%, the bending workability in the cold state will be degraded. Therefore, when P, Sb, and As are purified in the third invention copper ^^, the content is 0.005 to 0.2 mass%. It is important that the total content when two or more of P, Sb, and As are added together is set to 0.005 to 0.25 mass%.

By the way, in order to obtain a recrystallized material, the process (recrystallization treatment) is as follows. It will be a shelf for 20 minutes to 10 hours at C. Such «management is usually Roh Tutsi force ⁵ carried out in the manner ', If no謹理time mosquitoes ¾, those that have been recrystallized in the early stages of YuzuruMakoto force ^s, if C o crystal growth Sip braking effect forces volatilized by adding Even if it does, it may grow slowly and prevent uniform refinement of the crystal grains. However, if there is a possibility of such a problem, m is added to C by performing a treatment (rapidly high ϊ¾π heat treatment) at a higher temperature (a material temperature for growth) than that of a general; In addition to the case where the addition is not performed, the growth of the initial recrystallized grains can be prevented, and the crystal grains can be satisfactorily reduced by recrystallization. That is, by applying high thermal energy in a short period of time, recrystallization can be performed almost simultaneously in more nucleation sites in a short period of time, and there is no time allowance for crystal growth. Specifically, for example, mm

1¾) Roe material is heated at 450 ~ 750 ° C, 1 ~: L0000 seconds with rice cake. It is to make it.

In addition, the first to third invention copper alloys can be used as a recrystallized material of (1), a cold-worked material of (2) or a product processed material of (3) or (4), as described in is the force ^s, by keeping adding the following processing in the ^ extent, can be force ^s further improve the alloy particular strength.

For example, by setting the caloric work rate to 30% or more (preferably 60% or more) in the cold working before obtaining the recrystallized material, specifically, the customer material referred to in (1) can be used. In the step of obtaining or by performing cold working with a wire drawing ratio of 30% or more (preferably 60% or more), the grain refinement is improved, and the strength improvement due to the grain refinement is improved. You can plan ⁵ effectively. That is, in order to refine the crystal grain, the nuclear «which site necessary force ^s, the high cold Karoe of as working ratio mentioned above increased nucleation cytokine ^s, extent have its working rate, nuclear The amount of generation sites increases. Furthermore, since recrystallization is due to release of strain energy, finer crystal grains can be obtained by increasing the shear strain by the cold working, and as a result, finer crystal grains can be obtained. It is possible to more effectively improve the strength by the dangling. By the way, the image material to be finally recrystallized is a material having a small average crystal string 圣 (average crystal before recrystallization 力). Specifically, the average crystal | ¾ 圣 is 2 It should be less than 0 μm (preferably less than 10 μm). The smaller the average crystal tree before recrystallization, the more the location of the nucleus of recrystallization in the subsequent yielding increases, especially the higher the standing density at the grain boundary, the more likely it is to be a nucleus site. In You. However, the smaller the average crystal grain size is, the higher the strength is. Therefore, the energy required for the high-strength game is high, the cost is high, and it takes ¾jt time. Therefore, the average crystal tree Holy of塑material referred to in paragraph (1), it forces decide in view of the knitted his own machining ^rate? Preferable. In the case where the strength of the recrystallized material is insufficient when used, the recrystallized material is subjected to cold β or cold drawing at a working rate of 10 to 60% to achieve higher strength. Can be obtained.

In addition, when the knitting material is obtained, if a single pass of rolling or drawing and working roving is performed, the reduction and drawing ratios must be increased (15% or more (preferably 25% or more). )) Power to keep. This is because the shearing strain and nucleation sites are increased by the reduction of the draft and the elongation and the cold working, and further refinement of the crystal grains can be realized. In addition, the rolling process is performed by a / W 圣 roll or a roll with an extremely low angle, or the wire drawing process is performed with a wire drawing die with a large die angle or a wire drawing die with an extremely small die angle. It is also important to increase the number of nucleation sites or local strain energies and to realize further finer recrystallized grains. In addition, performing rolling by a different circumference method, that is, rolling while changing the iS by pressing the upper and lower rolls having different diameters, can also cause a large shear strain and recrystallization. ³ 'ability to make fine particles. In addition, depending on the application, etc., the Jomei copper alloy is subjected to an appropriate treatment that does not recrystallize ("^, 150 to 600 ° C, 1 second to 4 hours in a restaurant). by placing the spring limit I class Pi, it can be force ^s significantly improve the mosquitoes bamboo mouth characteristics. Specifically, (including cold working material referred to in (4)) cold working material (2) or (3) The processed material of (4) is subjected to Mi treatment, for example, at 200 ° C. for 2 hours, or at 600 ° C. for 3 seconds.

As 1, the copper ^^ of the stringiness shown in Tables 1 to 4 was dissolved in the atmosphere to obtain a prism 纖 ^ fiber having a thickness of 35 mm, a width of 80 mm, and a length of 200 mm. Then, the ingot was hot-rolled (at 4 passes) at 850 ° C to obtain an intermediate plate having a thickness of 6 mm, which was then pickled, and further cold-processed into a final plate having a thickness of 1 mm. By subjecting each final sheet to 100% recrystallization (hereinafter referred to as “recrystallized Sg”), it is heat-treated ('otun) for one hour, that is, the complete recrystallization of the knitting is performed. Thus, the first brilliant copper No. 10 l to No. 186 were obtained. In addition, before performing the recrystallization treatment, beforehand, «材« ^ か ら ^ ^ 各 各 各 か ら ^ 各 ^ ^ ^ ^ 最終 最終 ^ ^ in and Ratamuro, those »^ Tohenka ^s completely found the most衡at the time of recrystallization, which was ί夬定as his own recrystallization above words (see Table 1 5 Table 1 7). Furthermore, by the same process as described above, ^^ No. 102, No. 107, No. 111, No. 154, No. 180, the same quality (the same "^ dog, the same thread 1¾) ¾ winter board material After refining the final sheet material under conditions different from those described above, No. 102, No. 107, No. 11, No. 152, and No. 175 were the first inventions of the same pirates, respectively. Copper ^^ No. 102A, No. 1

07 A, No. 1 11 A, No. 154 A, No. 1805 A were obtained. That is, in the first invention copper alloy No. 102 A, No. 107 A, No. 111 A, No. 154 A, No. 180 A, the final plate material was heated to a temperature much higher than the recrystallization for a short time. It has been recrystallized (rapidly moving at high speed) by fibering, and its a (° C) and heating time b (second) are shown in Table 15 to Table 17 of “Recrystallized SJ¾”. The column is as described as “a (b)”. For example, in Table 15, N in the column of "recrystallization 0. 102 A are then placing himself saying the" 480 (20) "force, which ^is:? Fuyune reaction material to 480 ° C 20 low while Means to add.

 Also, as Difficult Example 2, the copper of ^^ shown in Tables 5 to 8 was dissolved in air, and the thickness was 35 mm and the width was 35 mm.

A 1 mm lump of 80 mm in length and 200 mm in length was obtained. Then, the ingot is hot-heated at 850 ° C for 1¾ (4 passes) to obtain a 6 mm-thick intermediate plate, which is then pickled, and further cold-E for a 1 mm-thick final material. After that, each final sheet material is recrystallized 100%, that is, recrystallized for 1 hour (by carrying out a recrystallization process) to obtain the second invention copper No. 201-N. o. 281 was obtained. In addition, the same method as in the first example was used in advance for Akira Nishiyoshi (see Tables 18 to 20).

 Furthermore, the same process as described above was used to obtain the final plate material of the same quality as the constituent materials of ^^ No. 202, No. 209, No. 250, and No. 265. And then recrystallized to obtain ^^ No. 202, No. 209, No. 250, No. 265, and the second invention copper, which has been destroyed ^^ No. 202 A, No. 209 A, No. 25 OA, No. 265 A was obtained. In other words, ^^ No. No. 202 A, No. 209A, No. 25 OA, No. 265 A obtained rapid heat-cured rice cake (wat a (° C) and heating time b (second)) According to the word 3 in Table 15 to Table 17, the word “a (b)” is written in the column of “Recrystallized i¾J” in Table 18 to Table 20.

Further, as Example 3, ^^ of Itosei shown in Tables 9 to 12 was dissolved in the atmosphere to obtain a cylindrical longevity lump having a diameter of 95 mm and a length of 180 mm. The lump was heated to 780 ° C and extruded (500 t) to obtain a diameter of 12 mm. After washing, stretched to 8 mm in diameter, heat-treated at 500 ° C for 1 hour, washed, drawn and processed to 4 mm diameter wire ( M). Then, each wire is heat-treated at a temperature at which it recrystallizes 100% (Ameyoshi temperature) for 1 hour m) (by recrystallization treatment) to obtain the third invention copper alloy No. 301 to No. 301. 397 was obtained. In addition, before performing the recrystallization treatment, a towel piece (a piece of wire with a length of about 20 mm (diameter: 4 mm)) that was disliked from each wire was treated with cattle for 1 hour at 300 ° C to 50 ° C intervals. We found the best case when recrystallized on the Xiao-Tou カ ^ and determined this as the above-mentioned recrystallization (see Tables 21 to 24).

 In addition, a wire rod of the same quality as that of the alloy No. 302, No. 314, and No. 338 was obtained by the same process as above, and the final sheet was subjected to the rapid high grounding described above and re-used. By crystallization, ^^ No. 302, No. 314, No. 338 and the same copper alloy No. 302A, No. 314A, No. 338A of the same invention were obtained. ^^ No. 302 A, No. 314A, No. 338A were obtained, and the rapid S¾n »» (¾a (° C) and heating time b (seconds)) were similar to those in Tables 15 to 17. Depending on the loading method, it is indicated as “a (b)” in “Recrystallization temperature” in Tables 21 to 24.

 As Comparative Example 1, a first comparative example of feathers ^ feN 0.401 to N 0.422 shown in Table 13 was obtained by the same process as in 1 m. Further, as Comparative Example 2, the same second comparative example 0.423 to No. 431 shown in Table 14 were obtained by the same steps as in the third cutting example. Note that the first comparative example ^ feN o. 40 l to No. 407 are the same fibers as JIS standard C2100, C2200, C2300, C2400, C2600, C2680 and C4250, respectively, and the second comparative example Alloy Nos. 423 and N 0.424 have the same integrity as JIS standard C 2600 and C 2700, respectively. In Tables 1 to 12, も の ^ in “(Co + Fe + Ni) ZSi” for those containing Co but not Fe or Ni should be read as “Co / Si”. And

By the way, production of the alloys of Comparative Example No. 421, No. 425, No. 427 and No. 431 was abandoned because the following problems occurred at about $ ¾t and the subsequent steps could not be performed. That results in large cracks at the stage of hot rolling the鍩塊for No. 421, can not ^s hot extrusion force for No. 425, in about Shinjo Jiang for No. 427及Pi N 0. 31 They were broken and none of them could perform the subsequent steps.

The first invention copper ^^ No. 101 to No. 186, No. 102A, No. 107A, No. 111A, No. 154A, No. 180A, the second invention copper No. 20 l to No. No. 281, No. 202 A, No. 209 A, No. 25 OA, No. 265 A and 3rd invention copper No. 301-No. 397, No. 302 A, No. 314 A, No. 338 A and 1st and 2nd Comparative Example ^^ Recrystallization of No. 40 1 to No. 43 1 (excluding No. 421, No. 425, No. 427, No. 431 which abandoned the production) Average crystal ¾ D (m ) Was measured based on a section using an optical image (JI S-H0501). The results were as shown in Tables 15 to 26.

 Also, the first invention copper ^^ No. 101 to No. 186, No. 102A, No. 107A, No. 11A, No. 154A, No. 180A and the second invention copper No. 201 to No. 281, No. 202 A, No. 209 A, No. 25 OA, No. 265 A and the first comparative example ^^ No. 401 to No. 422 (excluding No. 421) The conductivity was measured. The results were as shown in Tables 15 to 20 and 25. The conductivity (% IACS) is the percentage ratio of the value obtained by dividing the volume resistivity (17.241 （10-9 ^ Ω · πι) equivalent to that of the international standard by the mechanical ratio of the ^. I can do it.

 In addition, the first invention copper ^^ No. 101 to No. 186, No. 102A, No. 107A, No. 11A, No. 1 54A, No. 180A and the second invention copper ^ ^ No. 201 to No. 281, No. 202 A, No. 209 A, No. 25 OA, No. 265 A and the first comparative example No. 401 to No. 422 (excluding No. 421) Tensile tests were performed using an Ammsler ^ ability tester, and K¾ (0.2% †]), tensile and elongation were measured. Further, ^^ is cold-rolled (30% thigh) to a thickness of 0.7 mm, and its pressure resistance (hereinafter referred to as “micro-roe material”) is subjected to the same tensile test as above to obtain a 0.2, the tensile strength and elongation were measured, and the bending workability was evaluated, and the test was conducted to confirm the strength and strength.The results were as shown in Tables 15 to 20 and 25. The first invention copper ^^ No. 101 to No. 186, No. 102 A, No. 107 A, No. 11 A, No. 154A, No. 180 A and the second invention The impeached wood obtained by rolling copper ^ No. 201 to No. 281, No. 202 A, No. 209 A, No. 25 OA, No. 265A by 30% is also a high impregnated material according to the present invention. It goes without saying that it is high-strength copper.

The bendable basket was cut from the impeached material perpendicular to the thigh direction! The dough was bent into a W dog and the degree of bending R / t ( R: curvature radius (mm) on the inner circumference side at the bent part, t:

(mm)). In Tables 12 to 17 and Table 22, those which did not crack at R / t = 0.5 are indicated by `` ◎ '' as having excellent bending workability, and

The force ^s that did not cause cracking at 5 and the one that cracked at 0.5 ≤ R / t <1.5 were rated “〇” as having good bending workability (no inversion problem). It shows that when R / t = 2.5, the force that did not cause cracking was 1.50 ≤ R / t <2.5. Those with cracks with R / t ≥2.5 are indicated by “△” as those with a certain force (a problem is possible), and those with cracks with R / t ≥2.5 are indicated with “X” as those with poor bending workability (fine difficulty) Was.

 In addition, the stress decay test was carried out using a sample vessel and a sample night specified in JIS H3250. In relation to the exposure time to the atmosphere and the stress relaxation rate (a stress of 80% of the proof stress value of the post-processed material was applied to the surface of the refractory material), a cage with stress decay resistance: J was used. . In Tables 15 to 20 and Table 25, those with a stress relaxation rate of 20% or less after 75 hours exposure are indicated by `` ◎ '' as having excellent corrosion resistance: Even if the amount exceeds 30%, those that are 20% or less after 30 hours exposure are indicated by “〇” as having good corrosion cracking resistance (no problem), and the stress relaxation rate after 12 hours exposure

What is less than 20%, anti-corrosion: ^! ! Indicated as “も の” as a material having resilience (although there is a problem but possible), those with a stress relaxation rate exceeding 20% after 12 hours of exposure are those with poor stress corrosion resistance. Difficult) is indicated by “X”.

 In addition, the third invention copper alloy No. 301 to No. 397, No. 302 A, No. 314 A, No.

338A and the second comparative alloy No. 423 to No. 431 (No. 425, No.

427, No. 431) were subjected to a tensile test using the Amsla Performance Test, and the IttJ (0.2% «¾), tensile strength and elongation were measured. Furthermore, ^^ is drawn to a diameter of 3.35 mm, and the drawn material (hereinafter referred to as “Imperture material”) is subjected to the same tensile test as above, and the elongation and elongation are measured. Workability and power profit! The test was performed. The results were as shown in Table ^2. 1 to Table 24 and Table 26. The impeached material obtained by stretching the third invention copper No. 30 l to No. 397, No. 302 A, No. 314 A, No. 338 A is also a high impregnating material according to the present invention. It goes without saying that the strength copper is "^".

In addition, the bending workability of the basket is determined by bending the material to 90 degrees through the V block, and the degree of bending when a crack occurs R / d (R: inner circumferential side in the bent part) The curvature 圣 (mm), d: the diameter of the roe material (mm)). In Tables 18 to 22, those which did not crack at R / d = 0 are indicated by `` ◎ '' as having excellent bending workability, and no cracks occurred at R / d = 0.25. Cracks that occurred at 0 ≤ R / d <0.25 are indicated by “〇” as having good bending workability (no problem on steel), and cracks were observed at R / d = 0.5. However, if a crack occurred at 0.25≤R / d <0.5, it was judged as having good bending workability (although there was a problem, but it was difficult) with “△”. When the crack occurred at R / d = 0.5, it was indicated by “X” as having poor bending workability (steel difficult). In addition, the stress decay test was conducted according to JISH 3250 on a refractory material that had been subjected to the above-mentioned bending workability and was bent 90 degrees at RZd = 1.5. The test was carried out using a tester and "Komaya". After exposure to ammonium by using a mixture of equal amounts of ammonia water and water, the specimen was washed with sulfuric acid and then 10 times larger. In Table 15 to Table 20 and Table 25, those that did not crack after exposure for 40 hours were tested for corrosion resistance. Indicated as “©” as having excellent resistance to corrosion, those that cracked after exposure for 40 hours but did not crack after exposure for 15 hours, and those that have good corrosion resistance (no problem with ¾ffl ), Which shows cracks when exposed for 15 hours but does not crack when exposed for 6 hours. Those that have general corrosion resistance: ill resistance (although there is a title! There is a "△" as a symbol, and those that have cracked after 6 hours of exposure are resistant to corrosion! It is indicated by an “X” as it is inferior (hard to change).

Tables 15 to 26 show that the first to third invention copper alloys have finer crystal grains than those of the first and second comparative examples which do not have ^^ the can force ^s achieved are those mechanical properties and bending workability, and the like significantly increases of辱Ru the containing excited, plate even in conventional high strength Application for hardly decorative in靡同, elongated member, wires, etc. that force ¾ are those that can be force ^s to I ¾¾ to as | ^ is Ru. It is also demonstrated that by performing the recrystallization treatment on a high-speed basis, it is possible to further refine the crystal grains D and improve the strength. In addition, although not shown in Tables 15 to 26, the material was W & W!] (A recrystallized pressed and drawn wire was further cold-rolled and drawn). For those processed at 150 to 600 ° C for 1 second to 4 hours, it was confirmed that the spring limit conditions) S force relaxation I production was greatly improved.

[Table 1] Alloy material Alloy composition (m a

 No.Cu Zn Si Co Fe P Sr Y Cr a Hf Zn-2.5Si (Co + Fe + i) / S

101 Remaining 10.0 0.98 7.550

 102 Rest 10.3 1.50 6.550

 102A Rest 10.3 1.50 6.550

 103 Rest 9.6 1.58 0.07 5.650

 104 Rest 11.1 1.43 0.05 7.525

 105 Rest 10.4 1.51 0.02 6.625

 106 Rest 8.5 1.66 0.03 4, 350

 107 Rest 9.7 2.07 4.525

 107A Rest 9.7 2.07 4.525

 108 Remainder 6.8 2.33 0.975

 109 Rest 16.1 0.73 14, 275

 110 Remaining 10.0 1.02 0.11 7.450 0.108 Actual 111 Remaining 10.2 1.52 0.12 6.400 0.079

NO CO

 111A

 你 I Remaining 10.2 1.52 0.12 6.400 0.079 1 112 Remaining 11.8 1.44 0.08 0.12 8.200 0.056

113 Remaining 9.1 1.57 0..11 0.03 5.175 0.070

114 Remaining 10.1 2.01 0.11 5, 075 0.055

115 Remaining 11.5 2.32 0.14 5, 700 0, 060

116 Remaining 11.0 1.52 0.01 7.200 0.005

117 Remaining 10.2 1.51 0.06 6.425 0, 040

118 Remaining 9.3 1.08 0.23 6.600 0.213

119 Rest 4.8 1.58 0.07 0.850 0, 044

120 Rest 18.1 1.39 0.15 14.625 0.108

121 Remainder 13.6 1.26 0.09 10.450 0.071

122 Rest 10.2 1.49 0.03 6.475 0.020

123 Rest 11.2 0.69 0.07 9.475 0, 101

124 Remainder 13.2 1.81 Q.12 8.675 0.066

[Table 2] Composite alloy composition (mas

 No. Cu Zn Si Go Fe Ni Sn As g Zr In Zn-2.5Si (Co + Fe + i) / Si Si / Sn

125 Remaining 8.6 1.31 0.27 5.325 0.206

 126 Remaining 10.3 1.95 0.10 0.05 5.425 0.051

 127 Rest 9.8 0.88 0.39 7.600 0.443

 128 Remaining 7.1 1.62 0.06 3.050 0.037

 129 Rest 9.5 2.01 0.12 4.475 0.060

 130 Rest 10.0 1.63 0.06 0.01 5.925 0.043

 131 Rest 9.4 1.04 0.10 0.06 6.800 0.154

 132 Remainder 10.8 1.58 0.04 0.07 6.850 0.070

 133 Rest 9.3 1.66 0.08 0.02 5.150 0.060

 134 Rest 7.8 1.81 0.16 0.12 3.275 0.155

 135 Remainder 12.1 1.73 0.05 0.06 7.775 0.064

 136 Rest 11.8 1.12 0.19 0.08 9.000 0.241

 137 Rest 9.7 1.48 0, 04 0.07 6.000 0.074

Allocation 138 Rest 8.8 1.63 0.12 0.01 4.725 0.080

An example

 1 139 Rest 8.6 1.69 0.11 0.09 0.07 4.375 0.160

 140 Remainder 5.3 1.32 0.03 0.01 0.04 2.000 0.058

 141 Remaining 10.2 0.81 0.01 0.02 0.08 8.175 O.J 36

 142 Rest 9.4 1.64 0.34 5.300 4.824

143 Rest 8.9 1.56 1.01 5.000 1.545

144 Rest 10.6 1.12 0.05 7.800 22.400

145 Rest 8.2 2.41 0.05 0.29 2.175 0.021 8.310

146 Rest 11.3 2.14 0.10 0.42 5.950 0.047 5.095

147 Rest 7.6 0.57 0.12 0.21 6.175 0.211 2.714

148 Rest 10.8 1.74 0.11 0.35 6.450 0.063 4.971

149 Rest 10.6 1.52 0.09 0.29 0.03 6.800 0.059 5.241

150 Remaining 9.6 1.63 0.10 0.30 0.01 0.03 5.525 0.061 5.433

151 Rest 9.8 1.67 0.07 0.25 0.02 5.625 0.042 6.680

o to o

[Table 4]

[Table 5]

 Alloy composition (

 No.Cu Zn Si Co Fe Ni P Sr Cr then n Zn- 2.5Si (Co + Fe + Ni) / Si

201 Remaining 10.1 0.28 9.400

 202 Rest 10.0 0.49 8.775

 202A Rest 10.0 0.49 8.775

 203 Remainder 9.0 0.51 0.21 7.725

 204 Remaining 10.5 0.45 0.12 9.375

 205 Rest 7.7 0.52 6.400

 206 Rest 14.0 0.39 13.025

 207 Rest 10.2 0.19 0.03 9.725 0.158

208 Remainder 9.9 0.31 0.05 9.125 0.161

209 Rest 10.0 0.50 0.12 8.750 0.240

209A Rest 10.0 0.50 0.12 8.750 0.240

210 Remaining 9.5 0.52 0.10 0.03 8.200 0.192 Actual 211 Remaining 8.8 0.50 0.09 0.04 7.550 0.180> Allocation 212 Remaining 10.3 0.46 0.07 0.03 9.150 0.152

 2 213 Rest 9.7 0.33 0.11 8.875 0.333

214 Remaining 4.9 0.73 0.21 3.075 0.288

215 Remaining 15.8 0.70 0.10 14.050 0.143

216 Rest 8.5 0.43 7.425 0.021

217 Rest 13.4 0.40 0.05 12.400 0.125 ο

 218 Rest 10.5 0.52 ο 0.06 9.200 0.115 ο

 219 Rest 8.7 0.47 0.02 7.525 0.043

220 Remaining 9.8 0.39 0.07 8.825 0.179

221 Rest 9.8 0.73 0.21 7.975 0.288

222 Rest 8.3 0.44 0.06 7.200 0.136

223 Remainder 12.8 0.37 0.07 11.875 0.189

224 Remaining 8.1 0.55 0.06 0.03 6.725 0.164

225 Rest 8.9 0.18 0.26 8.450 1.444

[Table 6] Alloy material Alloy composition ma s s 3%)

 No.Cu Zn Si Co Fe Ni Sn Sr Mg Y Ti Zr Hf Zn-2.5Si (Co + Fe + Ni) / Si Si / Sn

226 Rest 9.2 0.30 0.36 0.02 8.450 1.200

227 Rest 8.5 0.49 0.45 7.275 0.918 ¹

228 Remainder 7.8 0.38 0.02 0.06 6.850 0.211

 229 Rest 10.1 0.56 0.26 0.05 8.700 0.554

 230 Rest 10.8 0.19 0.04 0.02 10.325 0.316

 231 Rest 9.7 0.66 0.03 0.06 8.050 0.136

 232 Rest 8.8 0.48 0.04 0.04 7.600 0.167

 233 Rest 14.8 0.39 0.02 0.03 13.825 0.128

 234 Rest 4.8 0.50 0.21 0.02 3.550 0.460

 235 Rest 8.5 0.47 0.04 0.05 7.325 0.191

 236 Rest 10.0 0.28 0.04 0.02 0.02 9.300 0.286

 237 Rest 8.1 0.44 0.03 0.02 0.03 7.000 0.182

Actual 238 Remaining 10.8 0.57 0.01 0.05 0.02 9.375 0.140

Out

 239 Rest 9.7 0.43 1.41 8.625 0.30

2 240 Rest 8.2 0.18 2.01 7.750 0.09

241 Rest 8.5 0.20 1.99 0.05 8.000 0.101

242 Rest 7.7 0.15 2.06 0.05 0.01 7.325 0.073

243 Rest 9.1 0.23 2.12 0.07 8.525 0.10

244 Rest 12.3 0.51 1.13 11.025 0.451

245 Rest 9.8 0.18 0.38 9.350 0.474

246 Rest 7.9 0.32 0.11 1.75 7.100 0.344 0.183

247 Rest 7.2 0.33 0.09 1.80 0.04 6.375 0.273 0.183

248 Rest 7.5 0.30 0.12 1.77 0.03 6.750 0.400 0.16

249 Rest 7.9 0.29 0.10 1.68 0.03 0.02 7.175 0.345 0.17

250 Remaining 9.1 0.28 0.05 1.92 8,400 0.179 0.14

250A Remaining 9.1 0.28 0.05 1.92 8.400 0.179 0.14

251 Rest 10.4 0.70 0.12 1.50 8.650 0.171 0.467

[Table 7] Alloy material'l Alloy composition (m a s s%)

 o.Cu Zn Si Co Fe Ni Sn Sb As Mg Y In Zn-2.5Si (Co + Fe + Ni) / Si Si / S

252 Rest 8.5 0.32 0.18 1.58 7.700 0.563 0.2

253 Rest 7.8 0.27 0.15 2.12 0.07 7.125 0.556 0.1

254 Remainder 7.4 0.35 0.10 1.75 0.05 6.525 0.286 0.2

255 Rest 8.8 0.21 0.01 1.48 8.275 0.048 O.

256 Rest 8.4 0.32 0.11 2.28 7.600 0.344 0.1

257 Rest 7.8 0.27 0.09 2.71 7.125 0.333 0.1

258 Rest 10.6 0.14 0.05 0.29 10.250 0.357 0.4

259 Rest 15.1 0.32 0.07 1.56 1.300 0.219 0.2

260 Rest 8.8 0.28 0.08 1.88 8.100 0.286 0.1

261 Rest 9.2 0.23 0.06 1.33 8.625 0.261 0.1

262 Rest 9.0 0.40 0.06 1.75 8.000 0.150 0.2

263 Rest 4.9 0.35 0.08 1.62 4.025 0.229 0 '21

264 Rest 8.3 0.74 0.08 1.63 6.450 0.108 0.

CD 265 Rest 7.7 0.26 0.07 0.02 2.02 7.050 0.346 0.1

 265A Rest 7.7 0.26 0.07 0.02 2.02 7.050 0.346 0.1

266 Rest 7.1 0.27 0.06 0.03 2.22 0.06 6.425 0.333 0.1

267 Rest 8.3 0.27 0.08 0.01 2.00 0.02 0.02 7.625 0.322 0.1

268 Remaining 6.9 0.4 0.21 0.01 2.18 5.800 0.500 0.2

269 Rest 8.8 0.36 0.02 0.05 1.58 7.900 0.194 0.2

270 Rest 9.3 0.19 0.04 0.02 0.58 8.825 0.316 0.3

271 Rest 7.8 0.32 0.03 0.05 1.49 7.000 0.250 0.21

272 Rest 11.3 0.44 0.03 0.03 1.68 10.200 0.36 0.2

273 Rest 8.7 0.33 0.02 0.05 1.40 7.875 0.212 0.2

274 Rest 10.6 0.22 0.06 0.02 1.90 10.050 0.364 0.11

275 Rest 7.7 0.28 0.03 0.03 1.66 7.000 0.214 0.1

276 Rest 6.8 0.36 0.05 0.02 0.01 1.58 5.900 0.217 0.2

277 Rest 12.5 0.41 0.12 0.05 0.05 2.28 11.475 0.244 0.1

[Table 8]

[Table 1 o]

 Alloy composition (ma s s%)

Example 3 alloy material

 No.Cu Zn Si Co Fe Ni Sn Sr Y then a Zr In Hf Cu-5Si Zn + 6S i (Co + Fe + Ni) / Si Si / Sn

326 72.5 25.9 1.53 0.05 0.02 64.85 35.08 0.046

 327 70.6 28.1 1.25 0.06 0.01 64.33 35.60 0.056

 328 71.5 27.0 1.44 0.02 0.05 64.29 35.64 0.049

 329 71.7 26.8 1.45 0.06 0.03 64.41 35.50 0.062

 330 70.7 27.6 1.58 0.04 0.04 62.84 37.08 0.051

 331 71.9 26.5 1.55 0.04 0.03 0.03 64.10 35.80 0.045

 332 72.2 26.2 1.48 0.03 0.03 0.02 64.84 35.08 0.054

 333 7t.2 27.3 1.38 0.03 0.05 0.01 0.03 64.30 35.58 0.065

 334 71.4 27.0 1.55 0.07 0.01 0.02 63.60 36.30 0.065

 335 73.7 24.5 1.61 0.22 65.62 34.16 7.318

336 74.0 23.8 1.52 0.73 66.35 32.92 2.082

337 71.7 26.6 1.42 0.09 64.62 35.12 15.778

338 73.2 25.0 1.59 0.06 0.13 65.27 34.54 0.038 12.231

338A 73.2 25.0 1.59 0.06 0.13 65.27 34.54 0.038 12.231

339 73.0 25.2 1.60 0.05 0.10 0.03 65.02 34.80 0.031 16.000

340 72.8 25.5 1.57 0.05 0.08 0.01 0.03 64.91 34.92 0.032 19.625

341 72.9 25.3 1.59 0.07 0.13 0.04 64.92 34.84 0.044 12.231

342 75.1 22.8 1.82 0.09 0.23 65.96 33.72 0.049 7.913

343 71.5 26.9 1.41 0.15 0.04 64.45 35.36 0.106 35.250

344 72.3 26.0 1.24 0.07 0.37 66.12 33.44 0.056 3.351

345 71.7 26.3 1.19 0.08 0.74 65.74 33.44 0.067 1.608

346 71.9 26.3 1.45 0.21 0.15 64.64 35.00 0.145 9.667

347 72.5 25.6 1.67 0.05 0.20 64.13 35.62 0.030 8.350

348 71.2 27.1 1.55 0.02 0.11 63.47 36.40 0.013 14.091

349 73.7 24.4 1.71 0.07 0.06 0.03 65.18 34.66 0.041 28.500

350 71.8 26.6 1.42 0.06 0.16 64.66 35.12 0.042 8.875

351 75.1 22.7 1.91 0.13 0.05 0.09 65.57 34.16 0.094 21.222

:

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¾¾ 嗨 ° solution ii

[Table 12]

 Alloy composition (mass so / o)

 Alloy material

 No. Gu Zn Si Co Fe Ni Sn P Sb As Cu-5Si Zn + 6Si (Co + Fe + Ni) / Si Si / Sn

379 71.6 26.5 1.55 0.28 0.06 63.860 35.80 5.536

380 72.5 25.4 1.23 0.07 0.81 0.04 66.300 32.78 0.057 1.519

381 72.6 25.5 1.60 0.08 0.15 0.06 64.610 35.10 0.050 10.67

382 71.6 26.7 1.54 0.05 0.08 0.08 63.850 35.94 0.032 19.25

383 73.3 24.9 1.60 0.02 0.07 0.14 65.270 34.50 0.056 11.43

384 74.7 23.2 1.72 0.01 0.14 0.22 0.06 66.052 33.52 0.086 7.818

385 73.1 25.1 1.44 0.06 0.01 0.17 0.08 65.943 33.74 0.047 8.471

386 72.6 25.6 1.58 0.03 0.06 0.11 0.06 64.660 35.08 0.057 14.36

387 71.8 26.4 1.46 0.09 0.01 0.03 0.19 0.05 64.72 35.16 0.088 7.684

 388 72.5 25.9 1.55 0.04 64.750 35.20

 CO example

CO

 3 389 73.6 24.6 1.70 0.07 65.100 34.80

 390 71.2 27.4 1.26 0.07 0.10 64.900 34.96 0.056

391 73.1 25.1 1.68 0.11 0.03 64.700 35.18 0.065

392 72.1 26.2 1.55 0.07 0.06 0.02 64.350 35.50 0.045

393 72.2 25.8 1.60 0.35 0.05 64.200 35.40 4.571

394 71.0 27.0 1.26 0.06 0.65 0.08 64.700 34.56 0.048 1.938

395 f 2.0 26.2 1.25 0.08 0.37 0.05 0.06 65.750 33.70 0.064 3.378

396 72.5 25.1 1.53 0.06 0.02 0.72 0.07 0.01 64.850 34.28 0.052 2.125

397 71.5 26.7 1.48 0.04 0.04 0.21 0.03 0.02 0.02 64.100 35.58 0.054 7.048

[Table 13]

O

≥ »

[Table 14]

 Alloy composition (mass s%)

 No.Cu Zn Si Go Sn Gu-5S i Zn + 6S i (Go + Fe + Ni) Si Si / Sn

423 69.80 30.2 69.80 30.20

 424 64.90 35.1 64.90 35.10

 425 74.97 23.8 1.23 68.82 31.18

Ratio 426 66.81 31.9 1.25 0.04 60.56 39.40 0.032

 427 74.74 23.0 2.21 0.05 63.69 36.26 0.023 Example

 2 428 65.85 32.8 1.25 0.10 59.60 40.30 0.080

 429 67.12 32.5 0.35 0.03 65.37 34.60 0.086

 430 68.80 29.3 0.92 0.05 0.95 64.20 34.82 0.054 0.968

431 73.31 23.7 1.80 0.04 1.15 64.31 34.50 0.022 1.565

[Table 15]

 Alloy material Average crystal grain size Recrystallization temperature Mechanical properties Mechanical properties (Post-processed material) Bendability Resistance to stress rot Resistance to tensile strength (Elongation (¾) Processed material)

10! 2.4 350 308 4ί6 45 504 572 15 ◎ o

 o

102A 1.8 480 (20) 367 493 45 602 691 12 o o 12

103.0 400 347 493 45 593 688 11 o o

 104 2.0 400 339 491 44 592 685 11 o o 12

105 2 350 328 489 586 682 13 ◎ o 12

106 2.1 350 331 488 45 584 683 12 o o 12

 ◎ o ◎

 108 2.0 350 355 508 42 599 725 8 m ◎ 10

109 2.2 350 309 432 43 513 601 9 o m 17

110 2.1 400 353 448 41 528 625 14 o 16

◎ ©

◎

 Actual ◎

 CO application

 113 1.6 400 417 5ί5 40 615 716 13 13 Example ◎

 △ ◎

 ◎ o o o ◎

 118 1.3 400 399 502 39 591 692 10 〇 ◎ 17

119 2.3 400 312 452 40 548 638 9 o ◎ 13

121 1.8 400 406 509 43 602 701 o o 14.0 350 354 493 45 615 705 11 o o 13

123 2.2 400 310 415 43 501 598 14 ◎ o 19 o

125 1.5 450 395 507 34 613 701 mm ◎ 16

1.4 450 381 456 36 558 639 8 m o 19

] 28 1.9 400 337 470 39 552 657 10 o 13

[Table 16]

 Age Mechanical properties Mechanical properties (Post-processed material) Bending 1 life Stress corrosion resistance

(M / m ² ) Tensile strength (N / mm ² ) Elongation Resistance (N / mnn ² ) Tensile strength (N / mm ² ) Elongation (%) (after Processed material)

129 1.5 400 412 544 38 630 742 9 Δ11

130 1.400 392 512 44 614 725 12 © 13 i l 357 478 40 575 665 1 Zc

132 1.3 400 413 517 40 628 730 11 © 12

133 1.3 400 404 513 40 624 735 11 ® 12

134 1.4 450 430 558 36 559 764 9 Δ12

135 1.2 400 430 558 40 561 759 9 〇 o 12

136 1.8 400 383 510 37 604 702 9 Δ 〇 16

137 1.4 400 391 507 39 618 713 9 ◎ ◎ 13

138 1. 3 400 400 515 42 600 708 12 ◎ ® 12

139 ί. 2 450 444 559 36 673 779 7 Δ ◎ 13

! 40 314 434 40 510 614] 4

 ί. 32 436 43 522 616 15

 142 1.9 350 357 499 44 047 689 12

 1 ο 389 512 40 588 f 02 9 (Ql I I cn 325 447 43 515 627 13

An example

 4bi> 585 38/00 810 6 ί

490 60b 37 712 822

 303 403 42 522 580 14 (Q)

 443 565 40 701/87 10

 1. J 411 536 42 670 757 \ \

 400 414 43 11 12

1 410 537 42 677 760 Ϊ2

 152 1.2 400 425 552 43 688 770 11 ◎ 12

153 2.2 400 360 480 40 540 655 12 〇 ◎ 11

154 1.4 400 402 538 41 645 750 11 〇 © 11

154A 1.3 710 (5) 426 553 43 _ 658 762 12 O ◎ 11

155 1.8 350 363 506 42 593 691 11 〇 © 12

156 1.3 400 449 573 39 708 795 10 〇 © ί2

157 1.1 450 434 561 36 706 780 7 Δo 17

158 1. 4 400 400 530 40 627 735 11 ◎ © 12

[Table 17]

 Alloy material Average grain size Mechanical properties Mechanical properties (Post-processed material) Conductivity

M (° C Oiling (%) Elongation (%). <Post-processing material) Crackability C% iAGS

159 ΐ.9 400 392 04 42 92 588 \ 1 〇 〇 14

■ | g0 1 3 400 41 g23 41 10 o 11 "J 2.0 400 355 482 Q 560 6g 1 ◎ ◎ 11

1Q2 ^ 4 400 39 g QQ 01 3 Δ 12

153 1.2 400 7 595 3g 683 800 7 Δ10

^ 64 450 428 5-jO 34 88 ggg 9 Δ Q

^ 65 400 332 WO 0 705 11 © 12

166 1.2 400 4 Π 544 40 674 769 10 Ο 12

167 1.4 400 537 750 1] 〇 13

1g8 1, 3 400 09 40 544 73g 11 13

169 3 400 08 525 40 "7 ◎ © 13

170 1.4 400 410 521 42 646 740) 2 13

171 1.4 400 400 517 42 640 730 ◎ ◎ 13 Actual] 2 1.3 400 428 549 40 653 763 10 ο O 13 173 1.9 400 38 474 34 535 654 9 〇

 Example ◎ 14

174 1.4 400 405 519 40 615 719 12 ◎ ◎ 12 oo 175 1.3 400 419 530 41 630 730 13 ◎] Z

 ^ 76 1.3 400 420 27 4 g28 733 3 ◎ 12

17F 1.1 400 47g 599 3g 716 823 7um 10

178 2.0 450 393 487 34 562 673 9 Δ14

179 1.5 400 403 520 41 613 720 12 ◎ ® 12

180 1.2 400 459 586 38 704 802 8 m O 11 630 630 (8) 482 597 38 721 813 9 Ο O 11

181 1.3 400 405 519 42 609 714 12 ◎ ◎ 12

2.ί 400 336 441 43 515 621 13 ® 〇 18

183 1.5 400 407 518 42 607 708 10 〇 〇 13

184 1.4 450 423 491 35 563 662 8 m ® 16

185 1.2 150 456 571 40 694 784 12 〇 ◎ 12

186 1.2 400 444 567 41 692 778 11 ◎ ◎ J3

[Table 18]

 Alloy material Average grain size Mechanical properties Mechanical properties (Post-processing village) J Conductivity

N m) (° C) JW mm ^Z f f, mm elongation (%)-l (, M mm ² ) (N elongation (%) (after material) Crackability (¾ iACS

20 ΐ 3. 350 251 347 41 412 466 15 ◎ 〇 28

202 2.6 350 257 366 41 433 498 14 ◎ o 23

202Α 2.3 530 (15) 287 379 42 451 507 t5 ◎ o 23

203 2.4 400 288 399 41 452 530 14 ◎ o 24

204 2.4 400 275 390 41 449 525 14 ◎ 〇 24

205 2.8 350 258 349 41 437 489 13 ® o 24

206 3.350 265 390 42 486 536 11 o m 25

207 3.1 400 254 346 43 420 484 12 ◎ o 33

208 2.8 400 263 372 41 485 542 10 ◎ 〇 29

209 2.3 450 301 412 38 500 565 12 ® o 27

209 Α 2.1 520 C 100) 322 423 40 515 570 13 ◎ o 27

210 2.2 450 315 425 40 515 573 13 ◎ 〇 27

211 2.3 450 305 4ί8 41 503 568 14 ◎ o 28

212 2.2 450 312 420 40 510 570 13 ® o 27

 213 2.8 450 274 393 37 480 535 10

 Example ◎ 〇 29

2 214 2. 4 450 272 412 34 474 537 9 o 20

CO 215 2.1 400 359 469 42 550 647 8 o m 20

 216 2. 4 350 261 362 4Ί 455 510 14 ◎ 〇 24

2.5 400 306 4Π 42 4g8 558 12 o m 26

218 2.5 400 277 394 40 476 533 12 ◎ o 24

219 2.7 400 257 360 41 448 502 13 o 25

220 2.6 400 259 375 42 469 522 14 ◎ o 26

221 2.0 450 322 439 35 513 S64 9 mm 〇 20

222 3.0 400 256 363 42 457 505 13 ◎ o 25

223 2.8 400 283 398 41 478 534 12 ◎ Δ26

224 2.4 400 262 391 40 480 531 12 ◎ 〇 23

225 2.8 400 270 358 42 430 492 12 ◎ o 32

226 2.4 450 298 405 37 491 570 9 m 〇 28

227 2.1 450 320 438 35 515 592 9 m 〇 27

[Table 19]

Alloy material Average crystal grain size Ran; mouth Mechanical properties Mechanical properties (post-processed material) Bending workability Stress corrosion resistance Conductivity o. (.C) Power resistance (NAnm ² ) Tensile strength (N / mm ² ) Elongation (%) Power resistance CN / mm) Tensile strength (N / mm ² ) Elongation (%) (Post-processed material) Crackability C% iACS)

228 2.7 400 259 356 40 445 488 11 ◎ © 27

229 2.1 450 333 448 42 543 579 10 ◎ 〇 22

230 2,9 400 259 362 43 449 495 14 ◎ 〇 34

231 2.2 400 301 419 42 512 578 13 〇 21

232 2.4 400 260 388 42 460 526 13 ◎ 〇 25

233 2.8 400 312 422 43 515 581 11 〇 Δ25

234 2.3 450 260 377 34 456 499 8 〇 ◎ 21

235 2.4 400 257 386 40 477 525 13 ◎ 〇 25

236 2.8 400 255 375 42 474 510 13 ◎ 〇 30

237 2.4 400 268 376 40 474 514 13 ◎ o 25

238 2.3 400 304 408 41 499 553 14 〇 23

239 2.6 350 331 410 41 523 590 12 〇 〇 20

240 3.1 400 313 392 40 530 585 11 o o 24 Actual

Allocation 241 3.0 400 327 400 41 540 591 12 o 〇 24 Example 242 2.8 400 335 399 41 543 590 12

 2 ◎ o 24

243 2.8 400 351 415 40 551 600 11 ◎ 〇 24

244 2.7 350 337 433 43 545 612 11 〇 o 20

245 3.3 350 256 345 42 425 475 14 ◎ 〇 28

246 1.8 400 354 435 42 600 640 13 ◎ 22

247 1.7 400 380 443 41 608 655 12 o ◎ 22

248 1.8 400 371 438 42 600 645 13 〇 ◎ 22

249 1.8 400 365 435 42 599 642 13 ◎ ◎ 22

250 1.8 400 376 443 43 588 645 11 ◎ o 22

250A 1.7 520 (20) 390 455 43 600 653 12 ◎ 〇 22

251 1.4 400 396 473 38 617 673 9 △ 〇 19

252 1.7 400 365 440 40 606 643 Π o 24

253 1.7 450 390 458 38 595 663 10 ◎ ◎ 23

254 1.8 400 365 430 40 590 636 11 ◎ 22

[Table 20]

 Material Average grain size Recrystallization temperature Mechanical properties Mechanical properties (Post-processed material) Bending f Stress corrosion resistance Conductivity

N o. (U m) CO耐Ka (N / mm ²⁾ Tensile Strength (NZmm ²⁾ elongation (%)耐Ka (N / mm ²⁾ Tensile Strength (N / mm ²⁾ elongation (%) (after Processed material) Crackability C% iACS)

255 2.3 350 302 385 41 470 525 14 ◎ o 23

256 1.7 400 396 469 41 608 679 12 ◎ o 21

257 Ί.δ 400 411 472 37 630 693 10 mm 〇 20

258 3.2 400 269 374 43 464 516 11 ◎ 〇 32

259 2.1 400 411 487 42 628 701 8 △ mm 2ί

260 2.0 400 354 434 42 578 625 12 〇 〇 22

261 2.2 400 323 404 41 530 578 12 ◎ 〇 23

262 2.0 400 355 439 40 575 632 Π 〇 〇 20

263 2.4 450 302 381 40 480 524 12 ◎ ◎ 21

264 1.5 400 366 469 42 619 678 9 △ © 18

265 1.8 400 363 440 40 566 639 12 o 21

265A 1.7 750 (4) 377 450 41 575 645 12 ◎ 〇 21

266 1.7 400 380 448 40 585 650 12 〇

Actual ◎ 20 applications 267 1.7 400 379 452 41 590 655 13 ◎ 〇 21 cases 268 1.4 450 403 492 40 638 700 11 〇

 2 ◎ 20

269 1.8 400 360 438 41 587 624 12 ◎ o 21

270 3.0 400 271 371 42 492 530 14 ◎ 〇 28

271 2.0 400 332 413 41 548 590 13 ◎ o 23

272 1.7 400 389 465 42 612 664 12 〇 o 20

273 1.9 400 334 416 40 555 590 13 ◎ 〇 23

274 2.1 400 388 457 40 574 633 12 o 25

275 2.0 400 334 409 41 536 584 12 © o 23

276 1.8 400 332 410 40 537 586 11 ◎ ◎ 22

277 1.5 400 458 531 39 672 721 9 O o 20

278 2.0 400 341 414 42 550 591 13 ◎ ◎ 23

279 1.7 400 388 460 40 605 658 11 〇 ◎ 22

280 1,7 400 396 475 39 615 680 12 ◎ ◎ 21

281 1.3 450 430 492 35 638 702 9 〇 ◎ 23

[Table 21]

Alloy 树 Average crystal size Recrystallization temperature Mechanical properties Mechanical properties (post-processed material) Bendability Stress corrosion resistance o. Mm) (.c) Power resistance (N / mm ² ) Tensile strength (N / mm ² ) Elongation (%) Power resistance (N / mm ² ) Tensile strength (NZmm ² ) Elongation (%) (Post-processed material) Crackability C% iACS

301 3.1 300 310 502 38 635 729 6 O Δ 13

302 3.2 300 324 518 35 658 756 6 〇 △ 13

302A 3.0 500 (15) 339 527 37 670 765 7 Room 13

303 2.9 350 345 533 35 673 768 6 Room 13

304 2.8 350 352 540 35 685 775 6 〇 Δ 13

305 2.9 300 340 535 36 685 776 6 〇 〇 12

306 3.3 350 266 453 39 589 667 7 Room 16

307 2.9 350 305 495 36 621 717 6 Room 15

308 2.7 350 332 526 34 670 762 6 〇 Δ 13

309 2.2 350 360 541 32 677 774 5 △ O 14

310 2.4 350 372 569 35 713 824 6 O 〇 12

311 2.3 350 382 580 32 729 841 5 m 〇 12

312 1.9 350 392 580 34 751 860 5 △ 〇 11 Actual

 Allocation 313 2.6 350 346 541 35 682 784 6 〇 o 13 Example 314 2.4 350 360 556 35 716 811 6 O o 12

Three

 314A 2.3 550 (10) 372 565 36 725 817 7 〇 o 12

315 2.3 350 375 567 36 728 819 6

) 〇 o 12

 316 2,3 350 376 569 36 733 822 6 〇 o 12

317 2.7 350 338 533 35 670 773 6 O Δ12

318 2.4 400 349 546 32 694 792 5 o 〇 12

319 3.4 300 253 433 39 559-638 7 o Δ 17

320 2.7 350 339 535 36 675 776 6 〇 o 12

321 3.4 350 255 443 38 568 647 6 〇 Δ 16

322 2.1 400 377 574 35 726 832 5 〇 O 11

323 2.8 350 342 537 35 685 788 6 〇 Δ12

324 2.6 350 358 555 34 702 805 5 o 〇 12

325 2-8 350 293 481 34 615 702 6 m Δ 18

326 2.4 350 353 548 35 803 807 6 o O 12

[Table 22]

Alloy material Average crystal grain size Recrystallization temperature Mechanical properties Mechanical properties (post-processed material) Bendability Stress corrosion resistance Conductivity o. (° C) Power resistance (NZmm ² ) Tensile strength (N / mm ² ) elongation (%)耐Ka (N / mm ²⁾ tensile strength (N / mm ²⁾ elongation (%) (post-processed material) cracking resistance (% IACS)

327 2.8 350 329 521 36 655 756 6 O Δ13

328 2.8 350 341 536 35 697 792 6 Om 12

329 2.7 350 343 539 35 680 781 6 O 〇 12

330 2.7 350 348 545 32 693 800 5 Δ 12

331 2.5 350 355 551 34 692 804 5 〇 o 12

332 2.4 350 348 543 35 698 802 6 O o 12

333 2.5 350 350 545 35 695 796 6 Om 13

334 2.6 350 361 557 33 710 818 5 〇 o 12

335 2.8 350 346 545 35 681 790 5 O o 11

336 2.8 350 363 556 31 688 806 4 O 〇 11

337 2.7 350 352 542 35 688 796 6 〇 o 12

338 2.3 350 365 559 36 714 826 6 o 〇 12

338A 2.2 640 (5) 377 567 37 722 833 7 o 〇 12 real

 Allocation 339 2.2 350 381 570 37 720 832 7 o 〇 12 Example 340 2.2 350 375 568 36 723 833 6 〇 〇 12

Three

 341 2.2 350 373 569 36 718 829 6 o 〇 12 O 342 1.8 400 398 594 34 756 865 4 Δ 〇 11

 343 2.3 350 366 560 34 714 817 6 o △ 12

344 2.6 350 348 536 36 670 783 5 0 〇 13

345 3.0 350 346 536 32 663 777 4 Δ Δn

346 2.4 350 350 545 34 685 780 5 o o 13

347 2.5 350 363 558 35 702 809 6 o o 12

348 2.8 350 337 537 33 678 779 5 0 〇 12

349 2.4 350 360 558 35 699 814 6 o 〇 11

350 2.7 350 333 527 36 669 764 6 〇 〇 12

351 1.9 400 416 615 31 780 892 4 mm 〇 11

352 2.5 350 359 551 34 702 810 6 o o 12

353 2.2 350 367 562 33 720 830 5 oo 12

[Table 23]

 Alloy material Average grain size Ran Mechanical property Mechanical property (Post-processed material) Bending process

N o. (Rn) (° C) Force (Nf, mm ² ) Tensile strength C / mm ² ) Elongation (%) Power resistance (N / mm ² ) Tensile strength (N / mm ² ) (%) (Post-processing village) Fragility (%! AGS

354 2.1 350 377 570 33 725 836 5 Ο o 12

355 2.1 350 381 572 34 722 836 5 ο o 12

356 2.1 350 375 568 35 733 835 5 ο o 12

357 1.8 350 417 610 31 767 885 4 mm 〇 11

358 2.4 350 354 548 35 699 804 6 ο 〇 12

359 2.3 350 364 560 34 727 823 6 ο 〇 12.

360 2.4 350 368 551 34 698 801 5 οm 12

361 2.4 350 365 556 34 706 811 6 ο 〇 11

362 2.4 350 377 564 32 708 818 4 mm 〇 11

363 2.3 350 351 545 34 695-790 6 ο o 12

364 2.9 350 307 480 34 615 698 6 Room 18

365 3.1 350 335 530 31 653 765 4 △ Δ 14

366 2.2 350 377 573 33 724 831 5 ο o 11 real

 367 3, 1 350 297 478 36 612 693 6 Delta 16 Examples 368 2.9 300 316 510 37 644 740 6 〇 〇 12

Three

 369 2.7 350 339 540 36 670 783 6 〇 〇 12

4 ^ 370 2.5 350 344 538 36 681 785 6 〇 〇 12

 371 2.3 350 377 575 34 715 8335 ο 0 11

372 2.4 350 353 548 35 693 804 6 ο o 12

373 2.5 350 354 557 33 700 808 5 ο 〇 12

374 2.6 350 331 531 35 666 770 6 ο o 12

375 2.8 350 330 523 36 654 758 6 ο o 13

376 2.4 350 354 549 35 705 810 6 ο 〇 12

377 2.4 350 361 558 35 711 824 6 ο 〇 12

378 2.3 350 369 567 34 723 832 6 ο o 12

379 2.7 350 334 536 33 676 777 6 ο 〇 12

380 2.7 350 369 553 33 695 802 4 Δ 〇 12

381 2.4 350 372 566 34 720 831 5 ο 〇 12

[Table 24]

[Table 25]

[Table 26]

Claims

The scope of the claims

The relationship between Zn-2.5-Si = 0-15mass% between their contents is as follows: 1.4-19mass% Zn and 0.5-2.5mass% Si. It has a crystal structure with an average crystal grain size of 0.3μπι≤Ό≤3.5 m, and contains High-strength copper with 0.2% Β¾ in the condition not less than 250 N / mm ²

 2. 0.005 to 0.5 ma ss% Co is further contained so that Co / S i force s'0.005 to 0.5 is obtained by dividing the content by the Si content ^ ^ A high-strength copper alloy as described in 請 1, which is to form a thread.

 3.03 to 1.5 mass% of Sn, and further contain ^^ «so that the value of the content of the Si content divided by the Si content, S i / S n, becomes 1.5 or more. High-strength copper as described in Contract 1 to be made

 4. 0.03 ~ 1.5mass% Sn is further contained so that the value obtained by dividing the Si content by its content, S i / S n, becomes 1.5 or more. High-strength copper described in Contract 2

 5. The value obtained by dividing the total content of Fe and Z of 0.005 to 0.3 ma ss% or ^^ 1 of 0.005 to 0.3111333% by the Si content (Fe + N i The high-strength steel according to claim 1, wherein the alloy further contains an alloy such that / Si is 0.005 to 0.5.

6. 0.005 to 0.3 ma ss% of Fe and Z or 0.005 to 0.3111353% of 1 ^ 1 divided by the Si content and the Si content (Fe + 4. The high ¾Jtl according to claim 3, wherein the content is further increased so that N i) / S i is 0.005 to 0.5.

7. 0.005 to 0.3mass% of Fe and / or 0.005 to 0.3111333% of ^ 1, and the total content of these and C0 divided by the Si content (Fe The high-strength copper alloy according to claim 2, wherein ^ is further contained so that + N i + C 0) / S i becomes 0.05 to 0.5. 5.

8.0.00 to 0.3 ma ss% of Fe and Z or 0.005 to 0.301 & 3 1% of 1 ^ 1 The high-strength copper described in Jinsuke, which further forms an alloy ii so that the value (Fe + Ni + Co) / S i divided by the content becomes 0.005 to 0.5.

9.4 to: 1.7 ma ss% Zn and 0.1 to 0.8 ma ss% Si and their content between Zn-2.5'S i = 2 to 15 ma ss% The crystal is contained so as to have a relationship, and the system is destructed by the Cu force, and the average crystal size D is 0.3μπχ≤Ό≤3.5〃m. ^ high strength copper and location that 0. 2% lttJ in state is 250 N / mm ² or more

 10. 0.00-0.5 ma ss% Co is further contained so that the value of Co / Si obtained by dividing its content by the Si content is 0.02 or more: L.5 ^ The high-strength copper claimed in claim 9 is to do «^.

 11. 0.2 to 3mass% of Sn should be further contained so that the value obtained by dividing the Si content by its content, S i / S n, is 0.5 or less. The high-strength copper alloy according to claim 9, wherein the copper alloy is a body.

 12.0.2 to 3 m s s% of Sn divided by Si content by its content, S i ZS n is 0.2.

The high-strength copper described in No. 10 of the Jinguo demands that it further contains «so that it becomes 5 or less.

13. 0.005 to 0.3 ma ss% of Fe and Z or 0.005 to 0.311 113 3 3% of 1 ^ 1, the total content of these divided by the Si content (F e + N i) The high-strength fujido according to claim 9, wherein the alloy fiber to be further contained is made into fiber so that ZSi force ^s ' 0.02 to 1.5.

14. 0.005 to 0.3 ma ss% of F e and Z or 0.005 to 0.311 113 3 3% of ^ 1, and their total content divided by Si content (F e + Ni) ZS i is in the range of 0.02 to 1.5.

High strength copper ^^ described in 1.

 15. 0.005 to 0.3 ma ss% Fe and Z or 0.005 to 0.3111 & 3 3%] ^ 1 divided by the total content of these and C 0 by the Si content (F e + N i + C 0) / S i is 0.02 to 1.5. Strength copper.

16. 0.005 to 0.3 ma ss% of Fe and / or 0.005 to 0.3 ^ 1 & 33% of 1 ^ 1, and the total content of these and C0 as Si content a value obtained by dividing (F e + N i + C 0) / S i is 0.0 2 to 1. to be 5, and Ne sustenance to be made to ^ ¹ Makoto further contain, according to請賴12 High strength copper

 17. Each of 0.003 ~ 0.3mas 5%? , S b, As, S r, Mg, Y, Cr, La,

A fiber further containing one or more elements selected from Ti, Mn, Zr, In and Hf こ と, ΐ 、 1 1, 青 ¾ ^ ¾ 2, 胄 ^ ^ g3, 青 ¾ * ¾ 4, 請 ^, 5, 6 6, 7 7, 8 8, 9 9, 賴 求The high-strength copper according to claim 10, claim 11, claim 12, claim 13, contract 14, contract 15 or claim 16.

Third invention Copper

18.Cu of 66-76 ma ss%, ηη of 21-33 ma ss%, and Si of 0.5-2 ma ss% between their contents Cu-5-S i = 62-67 ma ss% and Zn + 6Si = 32 to 38 mass%, and the crane forms a fiber consisting of Cu, and the average grain size D is 0.3 ^ m≤D≤3.5 μ A high-strength copper alloy that forms a crystal with a m of 0.2 m and has a 0.2% reminiscence of at least 250 NZmm ^{2 in the} recrystallized state.

 19. An alloy further containing 0.005 to 0.3 mass% of C0 so that the value of the content of C0 divided by the Si content, Co / Si, becomes 0.005 to 0.4. A high-strength copper alloy according to contract 18, wherein the high-strength copper alloy is intended to be a pirates.

 20. 03.-: Lma ss% of Sn is divided into alloy fibers so that the value of Si content divided by its content, S i / S n, is 1 or more. High-strength copper listed in Contract 18

21. 03 .: From 1 mass% of Sn, the content of the Si content divided by the content, so that the value of S i / S n becomes 1 or more, it is necessary to further contain ^ J. And

High-strength copper described in 9

 22. 0.005 to 0.3 ma ss% of Fe and / or 0.005 to 0.3 ma ss% of Ni, the value obtained by dividing the content of these signs by the Si content (F e + N i) The high-strength alloy according to claim 18, wherein the alloy fiber is further contained so that ZSi is 0.005 to 0.4.

 23. 0.005 to 0.3mass% of Fe and / or 0.005 to 0.3111 & 33% of 1 ^ 1, the total content of these divided by the Si content (Fe + N 21) The alloy according to claim 20, wherein the alloy further contains / such that / S i is 0.005 to 0.4.

J o

24. 0.005 to 0.3 ma ss% of Fe and Z or 0.005 to 0.3111 & 33% of 1 ^ 1, the total content of these and C 0 divided by the Si content (F e + N i + C 0) / S i is in the range of 0.05 to 0.4. ^.

25. 0.005 to 0.3 ma ss% Fe and / or 0.005 to 0.3 ma ss ⁰ / c ^ Ni divided by the total content of these and Co by the Si content Value (Fe + N i + Co) / S i force The high-strength copper according to claim 21, wherein 更 に is to further contain so that the strength becomes 0.005 to 0.4. .

 26. Each of 0.005 to 0.2 ma ss% of P, Sb and As and each of 0.003 to 0.3 ma 33% of 3% of 3 Mg, Y, Cr, La, Ti, Mn, Zr, In andぴ When one or more elements measured from H f and one or more elements of P, Sb, and As are contained, the symbolic amount of these elements should be 0.05 to 0.25mass%. Claim 18, Claim 19, Claim 20, Claim 21, Claim 22, Claim 22, Contract 23, Contract female 24 or Claim 25 High strength copper ^^.

 27. Plastic work including cold working with a work rate of 30% or more. 1) The recrystallized material obtained by recrystallizing a plastic 1π work material obtained by ro work. Contract, Contract 2, Claim 4, Claim 5, Claim 6, Claim 7, Claim 8, Claim 9, Claim 10, Contract 11, Contract 12, Claim 13, Claim 14, Claim 15, Claim 16, Claim 17, Claim 18, Claim 19, Claim 20, Claim 21, Claim Blue Claim 22, Claim Blue Claim 23, Claim Blue Claim 24, Contract 25 Or 髙 Strength copper described in the contract 26

 28. The reclaimed material according to claim 27, which is a recrystallized material obtained by recrystallizing a plastic 14¾ material by heat treatment at 450 to 750 ° C and 1 to 1000 times less. Strength copper.

 29. The high-strength copper according to claim 27, characterized by being a cold-worked material obtained by cold-rolling or cold-drawing a recrystallized material.

 30. The high-strength copper alloy according to Contract 29, characterized in that the cold-worked material is formed by shaving for 150 to 600, 1 second to 4 hours.

 31. A cold-worked product which is processed into a predetermined product and a dog, and is a product-processed material.

High-strength copper alloy described in 9.

 32. The high-strength copper according to claim 31, wherein the processed material is processed under the conditions of 150 to 600 for 1 second to 4 hours.

33. Claim 1, Claim 2, Claim 3, Claim 4, Claim 5, Claim 5 Claim 6, Claim 7, Claim 8, Contract 9, Claim 10, Claim 11, Claim 12, Claim 13, Claim 14, Claim 15, Contract 16 or Claim 17 Strength copper ^^.

34. Claim 18, Claim 19, Claim 20, Claim 20, Claim 21, Claim 24 22. The high-strength copper according to claim 2, 22, 23, 24, 25 or 26.