WO2002004164A1 - Metal d'apport pour brasage - Google Patents
Metal d'apport pour brasage Download PDFInfo
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- WO2002004164A1 WO2002004164A1 PCT/JP2001/006001 JP0106001W WO0204164A1 WO 2002004164 A1 WO2002004164 A1 WO 2002004164A1 JP 0106001 W JP0106001 W JP 0106001W WO 0204164 A1 WO0204164 A1 WO 0204164A1
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- brazing
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/32—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C
- B23K35/322—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C a Pt-group metal as principal constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/02—Alloys based on gold
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/04—Alloys based on a platinum group metal
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/06—Alloys based on silver
- C22C5/08—Alloys based on silver with copper as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
Definitions
- Kishiaki is a brazing material that can be brazed with good corrosion resistance and sufficient bonding strength, especially for metals that require decorative appearance such as titanium and stainless steel.
- the present invention relates to a brazing filler metal which is suitable for welding and which can be welded at a temperature not higher than the transformation point of pure titanium. Background technology
- Knotting has long been known as a metalworking technique that can join metals relatively easily. Since brazing is still an important metalworking technology, it is used in various industrial fields, and the types of brazing materials used for brazing are also diverse.
- Titanium including pure titanium and titanium alloys
- Titanium (Ti) is widely used in various industrial fields due to its excellent properties of light weight, high strength and high corrosion resistance. For example, frames for watches and glasses).
- Pure titanium crystals have a hexagonal close-packed structure at room temperature, but have a body-centered cubic structure at temperatures above the transformation point (temperature at transformation) of 882 ° C.
- Ti has a thin oxide film called a passivation film formed on the surface by air or moisture, and the passivation film is strong and difficult to remove, so that the wettability of the brazing material is poor. Therefore, when brazing, sufficient bonding strength cannot be obtained.
- a flux organic solvent
- Ti components are conventionally known as brazing materials.
- Ag-based wax has a melting point of about 800 ° C to 1000 ° C for the mouth material itself.
- this brazing material has poor corrosion resistance, it is likely to cause corrosion after brazing, and is rarely used for welding metal products such as watches and eyeglasses that require decorative appearance.
- Ti-based solder examples include Ti CuNi-based fillers. Since the Ti CuNi brazing material has a melting point of 900 ° C or more, the soldering must be performed at a temperature not lower than the transformation point of Ti, and after the brazed Ti member is brazed. There is a disadvantage that the crystal structure becomes coarse due to transformation. For this reason, when brazing with Ti-based brazing, the coarse structure must be removed by polishing or the like, and then a process such as mirror finishing must be performed.
- Japanese Patent Application Laid-Open No. Hei 9-85485 describes a brazing material that can be joined without eroding a pure gold or gold alloy portion in joining pure titanium or a titanium alloy with pure gold or a gold alloy.
- this brazing material is made by mixing indium (In) and punishment (Cu) based on silver (Ag) and must be joined at 1023 ° C, which is higher than the transformation point of pure titanium.
- the conventional technology for joining metal products made of Ti and stainless steel, etc. requires good corrosion resistance and sufficient joining strength, and requires joining at a temperature below the transformation point of pure titanium. There was no way to do that.
- the present invention has been made in order to solve the above-mentioned problems, and is intended to be used in a member for which the appearance is required to be decorative, and a filler material for brazing a metal such as stainless steel.
- the purpose is to join at a temperature equal to or lower than the transformation point of i, and to ensure good corrosion resistance and sufficient joining strength. Disclosure of the invention
- the brazing filler metal according to the present invention is a brazing filler metal composed mainly of palladium, a metal which dissolves completely in the palladium, and phosphorus, wherein the phosphorus content exceeds 2% by weight and 20% by weight. %).
- the above brazing material is preferably a material to which platinum and nickel are added as a metal which is completely dissolved in palladium.
- the brazing material should have a platinum content of more than 4% by weight and less than 86% by weight, a nickel content of more than 4% by weight and less than 36% by weight ⁇ It may be included in.
- the proportion of phosphorus may be included in a range of about 3% to about 17% by weight.
- the proportion of platinum may be included in a range of about 5% to about 85% by weight.
- the proportion of nickel is comprised within the range of about 5% to about 32% by weight.
- the present invention also provides a brazing filler metal in which copper and nickel are added as a metal which forms a solid solution with palladium, and the phosphorus content is in the range of about 4% to about 18% by weight. .
- the copper material contains the above-mentioned copper in the range of about 2% to about 64% by weight, and the nickel in the range of about 7% to about 36% by weight. Even better.
- the present invention also provides a brazing material to which gold and nickel are added as a metal which is completely dissolved in palladium.
- the brazing material preferably has a gold content of more than 2% by weight and less than 60% by weight, and a nickel content of more than 4% by weight and less than 32% by weight. It is even better if included in.
- the proportion of phosphorus may be included in a range of about 3% to about 19% by weight, and the proportion of gold may be included in a range of about 3% to about 59% by weight. It is preferred that the nickel content be in the range of about 5% to about 31% by weight.
- the present invention provides a brazing material mainly composed of platinum, a metal which dissolves completely with the platinum, and phosphorus, wherein the phosphorus content is in the range of about 4% by weight to 21% by weight. We will also provide mouthpieces contained within.
- the brazing material is preferably a material to which copper and nickel are added as a metal which is completely dissolved in platinum.
- the phosphorus content should be in the range of about 4% to 19% by weight, and the copper content should be in the range of about 2% to about 66% by weight. More preferably, the ratio of / nickel is included in the range of about 7% to about 36% by weight.
- the brazing material may be a material in which gold and nickel are added as a metal which forms a solid solution with platinum.
- the percentage of gold is included in the range of about 5% to about 62% by weight
- the nickel content is in the range of about 5% to about 22% by weight.
- FIG. 1 is a phase diagram of a binary system of Pd—P in which the horizontal axis indicates the ratio of P to Pd and the vertical axis indicates the melting point.
- FIG. 2 is a phase diagram of a Pt-P binary system in which the horizontal axis indicates the ratio of P to Pt and the vertical axis indicates the melting point.
- Fig. 3 is a state diagram of a Cu-P binary system in which the horizontal axis indicates the ratio of P to Cu and the vertical axis indicates the melting point.
- FIG. 4 is a plan view showing a metal member in which two pure titanium plates are overlapped in a cross shape.
- FIG. 5 is a sectional view taken along line 5-5 in FIG.
- FIG. 6 is a cross-sectional view of the tip portion shown in FIG. 7 cut along a plane including a panel rod hole.
- FIG. 7 is a perspective view showing a watch case in which four leading end portions are joined to the watch case main body.
- FIG. 8 is an exploded perspective view showing the watch case main body and the four front cans before joining the four front cans to the watch case main body.
- Pd—P-based brazing filler metal has palladium (Pd) and phosphorus (P)
- Pd—P-based brazing filler metal has palladium (Pd) and phosphorus (P)
- Pd—P-based brazing filler metal has palladium (Pd) and phosphorus (P)
- PdPtN'iP brazing material to which platinum (Pt) and nickel (Ni) are added.
- the PdPtNiP brazing material is prepared by weighing palladium (Pd), platinum (P1;), nickel (Ni), and phosphorus (P) so as to have a desired composition. These metals are melted by a high-frequency melting method to produce an alloy, which is then processed into an elongated shape (ribbon shape) with a thickness of about 60 ⁇ m in an argon (Ar) atmosphere. .
- the proportions of P, Pt, and Ni required for the PdPtNiP-based brazing material to become the brazing material intended for the present invention are as follows. .
- the proportion of P is 2% by weight as in sample 13
- the melting point is 910 ° C, but when it becomes 3% by weight as in sample 10), the melting point decreases to 642 ° C.
- the proportion of P must exceed 2% by weight. It is preferably at least 3% by weight.
- the melting point in the case of 20 by weight 0/0 as sample 3) is 932.
- the melting point is 17% by weight, as in samples 4) and 5), the melting point decreases to 870 ° C and 721 ° C, respectively, and low-temperature bonding becomes possible.
- % Preferably less than about 17% by weight. Therefore, there is a range in the proportion of P necessary for the PdPtNiP-based brazing filler metal to become the brazing filler metal of the present invention, and the P proportion exceeds 2% by weight. And less than 20% by weight, and preferably ranges from about 3% to about 17% by weight.
- the ratio of Pt is as follows. ⁇ a melting point in the case of 4 by weight 0/0 as the proportion of ⁇ sample 1) is 91.5 ° C, a melting point becomes to 5% by weight as sample 4) is lowered to 8 70 ° C viewed from becoming possible cold junction Te, the ratio of P t must exceed 4 by weight 0/0, preferably at about 5% by weight or more. In the case of 86% by weight as in sample 16), the melting point is 910 ° C, but in the case of 85% by weight, as in sample 15), the melting point drops to 860 ° C, making low-temperature bonding possible. In view of this, the proportion of Pt must be less than 86% by weight, and is preferably about 85% by weight or less.
- the proportion of Pt necessary for the PdPtNiP-based brazing material to become the brazing material targeted in the present invention which exceeds 4% by weight and 86% by weight. And preferably ranges from about 5% to about 85% by weight.
- the ratio of Ni is as follows. When the proportion of Ni is 4% by weight as in sample 9), the melting point is lower than the transformation point of Ti, but the wettability to Ti tends to be insufficient. However, when the percentage of Ni is 5% by weight as in sample 8), the melting point Is lower than the transformation point of Ti, and the wettability to Ti is sufficient.
- the melting point exceeds the transformation point of Ti, although the wettability to Ti is good, but as at 32% by weight, the melting point becomes T as in sample 6). Below the transformation point of i. Therefore, there is a range in the Ni content necessary for the PdPtNiP-based brazing material to be the brazing material targeted in the present invention, which is more than 4% by weight and 3%. Less than 6% by weight, and preferably ranges from about 5% to about 32% by weight. Samples 10), 11), and 12) having melting points of about 500 to 600 ° C. have particularly good wettability to Ti. Spread in the enclosure. In addition, as will be described in detail later, corrosion resistance and bonding strength are also sufficient.
- low-temperature bonding is possible for the PdPtNiP-based brazing material when the P ratio is within the above range, and when the Pt ratio is within the above range.
- it can satisfy all three requirements of ensuring good corrosion resistance and ensuring sufficient bonding strength, and is a brazing material with improved wettability to Ti.
- the ratio of Ni is within the above-mentioned range, the brittleness of the mouth material is eliminated, and the wettability to Ti is further improved, making the brazing material more desirable.
- Fig. 1 shows the binary system of Pd-P, where the horizontal axis shows the ratio of P to Pd and the vertical axis shows the melting point.
- Fig. 2 shows the ratio of P to Pt on the horizontal axis.
- the vertical axis is a phase diagram of a binary system of Pt-P showing the melting point. Both of them are described in detail in the following Reference 1.
- the melting point of alloys 1 and? Increases as the proportion of P increases.
- the eutectic composition is reached, and the melting point is greatly reduced to about 800 ° C. become.
- This eutectic composition is defined as the first eutectic of Pd-P.
- the proportion of P is further increased, the melting point rises to about 1000 ° C., and then, when the proportion of P becomes 12% by weight and the proportion of Pd becomes 88% by weight, the melting point increases.
- ⁇ ⁇ ⁇ Becomes a eutectic composition and its melting point drops significantly to around 800 ° C.
- the state having the eutectic composition is referred to as a second eutectic of Pd-P.
- the melting point of the alloy decreases from 176 ° C as the proportion of P increases, and the proportion of P is 4 wt%.
- the proportion of t reaches 96% by weight, the composition becomes a eutectic composition, and the melting point is greatly reduced to about 600 ° C.
- the state of this eutectic composition is referred to as Pt-P eutectic.
- the PdPtNiP-based brazing filler metal is an object of the present invention. Is considered to be the case of a specific composition that can utilize the first eutectic or the second eutectic of Pd-P described above. Also, given that the alloy of Pt and P also has a property that the melting point decreases when the alloy has a eutectic composition, a specific composition that can utilize the eutectic of Pt-P is also considered.
- the melting point can be significantly reduced.
- the alloy of 1 and? Departs from the first eutectic of Pd-P when the proportion of P exceeds 6% by weight, and becomes the second eutectic at 12% by weight.
- the first eutectic of Pd—P is used.
- the second eutectic of d—P is used.
- the PdPtNiP-based brazing filler metal is a metal which forms a solid solution with Pd in an alloy of Pd, P and Pt having such a specific composition. It can be considered that ⁇ is added.
- Ni the metal to be joined with brazing material The effect is obtained that the wettability to the member is improved and the brittleness of the brazing material is improved. But is the added Ni with Pt? Since the composition is replaced with d, if an inappropriate amount is added, the composition of Pd and P will deviate from the eutectic, causing the melting point to rise and the solid solution not to be uniformly dissolved. There is a possibility that the preferred mouth material intended for the purpose cannot be obtained.
- the PdPtNiP brazing material according to the present invention has a P content of more than 2% by weight and less than 20% by weight, preferably from about 3% by weight to about 10% by weight.
- the content is within the range of about 10% by weight and the composition is within the range of about 10% by weight to about 17% by weight, the first eutectic or the second eutectic is used to perform low-temperature bonding. It is considered possible brazing material.
- the brazing material when the proportion of Pt is more than 4% by weight and less than 86% by weight, preferably in the range of about 5% by weight to about 85% by weight, the brazing material can be further brazed at a lower melting point, and three requirements are to be ensured: good corrosion resistance and sufficient bonding strength. It can be satisfied with everything, and it is considered that the brazing material has improved wettability to Ti.
- the Ni content is more than 4% by weight and less than 36% by weight, and preferably in the range of 5% to 32% by weight, the alloy is low in melting point, uniform, and brittle. A brazing material having no wettability and having better wettability can be obtained.
- This brazing material is composed of PdCuNiP with copper (Cu) and nickel (Ni) added as a metal that forms a solid solution with Pd (Pd) and phosphorus (P). It is a material for the system. Since the PdCuNiP-based filler material is manufactured by the same method as the above-described PdPtNiP-based brazing material, detailed description of the manufacturing method is omitted.
- This brazing material like the above-mentioned PdPtNiP-based brazing material, becomes the brazing material of the present invention when each metal is composed of a specific ratio. It is considered that the first eutectic or the second eutectic of Pd—P is used, or the eutectic of Cu—P described later is used.
- FIG. 3 is a phase diagram of a binary system of Cu—P in which the abscissa indicates the ratio of P to Cu and the ordinate indicates the melting point, which is described in Reference 1 mentioned above.
- the melting point of the alloy of Cu and P decreases from about 1084 ° C as the proportion of P increases, and the proportion of P is about 8% by weight and Cu is about When it becomes 92% by weight, it becomes eutectic and its melting point drops to about 714 ° C.
- This eutectic composition is referred to as a eutectic of Cu-P.
- the proportion of P necessary for the PdCuNiP-based coating material to be a bonding material capable of low-temperature bonding as the object of the present invention is in the range of about 4% by weight to about 18% by weight. is there.
- the PdCuNiP-based brazing material is considered to be a brazing material that can be brazed at a lower melting point if it has a composition that can utilize the eutectic of Cu-P. Is in the range of about 2% to about 64% by weight. In this case, a brazing material having good corrosion resistance and sufficient bonding strength and having improved wettability to Ti can be obtained. Furthermore, there is an optimum amount range of the Ni content.
- Ni content is within the range of about 7% by weight to about 36% by weight, not only low-temperature bonding is possible, but also a low melting point.
- a desirable mouth material having a uniform alloy, improved brittleness, and further improved wettability to Ti can be obtained.
- Pt and ⁇ Ni added P d P t Ni P type mouthpiece and Cu and Ni added Pd Cu Ni P type mouthpiece were explained.
- P-type filler materials are not limited to these, but include Pd AuNiP-type brazing materials.
- This Pd Au NiP-based mouth material is composed of gold (Au) and nickel (Ni) as metals that are completely dissolved in palladium (Pd) and phosphorus (P). Is added. Since the PdAuNiP brazing material is manufactured by the same method as the PdPtNiP brazing material, detailed description of the manufacturing method is omitted. Then, for the Pd Au Ni P brazing material, the composition ratio (wt%) of the four metal elements Pd, Au, Ni, and P was changed as appropriate from 17) to 27. Table 11 shows the results obtained by preparing 11 samples up to) and examining the melting point and wettability of each material for T'i.
- the proportion of P is 2% by weight as in sample 25
- the melting point is 90 ° C. 'To enable low-temperature bonding
- the proportion of P must exceed 2% by weight. but sample 1-9) yo. urchin 2 0 wt% the melting point in case of 9 2 7. Since it is C, it must be less than 20% by weight.
- a composition that can utilize the first or second eutectic of Pd—P In consideration of the above, the proportion of P is preferably about 3% by weight or more and less than 19% by weight.
- the melting point is 889 ° C for 2% by weight as in sample 26), but the melting point is 619 ° C for 6% by weight as in sample 24).
- the ratio of Au must exceed 2% by weight, and is preferably about 3% by weight or more.
- the melting point is 933.3 ° C for 60% by weight as in sample 27), but the melting point drops to 774 ° C when 38% by weight as in sample 21).
- the proportion of Au should be less than 60% by weight, preferably less than 59% by weight.
- the melting point is lower than the transformation point of Ti at 4% by weight as in sample 17), but the wettability to Ti tends to be insufficient. . About 5% by weight or more is preferable for sufficient wettability with respect to Ti. Further, when the content is 32% by weight as in the sample 20), the melting point exceeds the transformation point of Ti even though the wettability to Ti is good. In order to lower the melting point below the transformation point of Ti, the content is preferably about 31% by weight or less.
- the proportion of Ni to become the brazing filler metal of the present invention is more than 4% by weight and less than 32% by weight, and preferably in the range of about 5% by weight to about 31% by weight.
- the Pd AuNiP-based brazing material is a brazing material that can be joined at a low temperature when the proportion of P is within the above range, and when the proportion of Au is within the above range. It becomes a brazing material that can sufficiently satisfy corrosion resistance and bonding strength.
- the proportion of Ni is within the above range, the alloy becomes a low melting point and uniform alloy, the brittleness is improved, and the wettability to Ti is improved, making the brazing material more desirable.
- Pt-P-based brazing filler metal is a mixture of platinum (Pt) and phosphorus (P) with a metal that forms a solid solution with Pt.
- Pt platinum
- PtCuNiP-based brazing filler metals to which nickel and nickel (Ni) are added.
- This PtCuNiP-based coating material is also manufactured by the same method as the above-mentioned PdPtNiP-based coating material, and therefore detailed description of the manufacturing method is omitted.
- This brazing material like the brazing material of the PdP ⁇ NiP series, becomes the brazing material of the present invention when each metal is composed of a specific ratio. Is considered to be the case using the eutectic of Pt-P shown in Fig. 2 or the case of using the eutectic of Cu-P shown in Fig. 3.
- This PtCuNiP-based filler material is considered to be a filler material capable of low-temperature bonding, which is the object of the present invention, in the case of a composition that can utilize the eutectic Pt-P described above.
- the proportion of P for that purpose ranges from about 4% to about 19% by weight. If the proportion of P is within this range, the alloy becomes low in melting point and uniform, and becomes a brazing material capable of low-temperature bonding.
- a composition that uses a eutectic of Cu—P is considered to be a filler material that can be brazed at a lower melting point, but the Cu content for this purpose is about 2% by weight to about 6%. It is in the range of 6% by weight.
- the ratio of Cu is within this range, not only brazing at a lower melting point below the transformation point of Ti is possible, but also all three requirements of good corrosion resistance and sufficient bonding strength are satisfied. However, a brazing material having improved wettability to Ti can be obtained. Furthermore, there is an optimal amount range of the Ni content. If the Ni content is within the range of about 7% to about 36% by weight, not only low-temperature bonding is possible but also low melting point. A desirable brazing material having a uniform alloy, improved brittleness, and further improved wettability to Ti can be obtained.
- the Pt-P-based brazing material may also contain a metal other than Cu as a metal that forms a solid solution with respect to P1: for example, even if Au is added, a brazing material that is preferable as the filler material of the present invention. become.
- the brazing material is a PtAuNiP brazing material.
- This Pt Au NiP-based filler material is also considered to be a brazing material capable of low-temperature bonding, which is the object of the present invention, in the case of a composition that can utilize a P-type eutectic.
- the percentage of ⁇ ranges from about 4% by weight to about 21% by weight. If the ratio of ⁇ is within this range, a homogeneous alloy with a low melting point will be obtained, and a brazing material that can be joined at low temperatures. There is also an optimum amount range for Au.
- the ratio of 11 is within the range of about 5% to about 62% by weight, not only low-temperature bonding is possible, but also good corrosion resistance and sufficient bonding
- a brazing material that satisfies all three strength requirements and has improved wettability to Ti can be obtained.
- there is an optimum amount range of the Ni content When the Ni content is in the range of about 5% by weight to about 22% by weight, not only low-temperature bonding is possible but also low melting point. It is possible to obtain a desirable mouth material having a uniform alloy, improved brittleness, and further improved wettability to Ti.
- a metal member 17 as shown in FIG. 4 was prepared and the following test was conducted in order to confirm the corrosion resistance and the joining strength.
- the metal member 17 is formed by laminating pure titanium plates 15 and 16 having a length of about 25 mm, a width of about 5 mm and a thickness of about 1 mm in a cross shape.
- the first brazing material (PdPtNiP, PdCuNiP, PdAuNiP) described above in Part 18 or the second brazing material (PtCuNiP) , Pt AuNiP) 19 were interposed, and a total of 14 samples were prepared from Examples 1 to 8 shown in Table 3 and Examples 9 to 14 shown in Table 4. did.
- Intersection 18 is shown for each sample After fixing with no jig, pressure - forces 6 X 1 0- 6 T o in rr performed 10 minutes heating at mouth ⁇ with only the temperature shown in Table 3 ⁇ Pi Table 4, and then quenched in A r atmosphere It is made.
- the corrosion resistance test was performed on each sample of the metal member 17 by the CASS test specified in ISO 3370, and the joint strength test was performed on a pure titanium plate 15, 16 using a jig (not shown) as shown in Fig. 5. As described above, it was measured by conducting a tensile test in the thickness directions a and b.
- Ag base brazing material of the brazing material conventionally known for comparison (58 wt%, C u 32 weight 0/0, P d 10 weight 0/0)
- T i based brazing material (T i 60 wt%, using a C u 25 weight 0/0, N i 5 wt%) to prepare a similar sample in the manner described above were subjected to bonding strength test as corrosion resistance test.
- the results are shown in Table 5.
- Tables 3 to 5 the composition ratio of each metal element in the filler is indicated by a suffix of each element symbol. For example, in the case of Example 1, P'd is 34% by weight, Pt is 53% by weight, Ni is 8% by weight, and P is 5% by weight.
- Examples 1 to 4 in Table 3 show the test results of PdPtNiP-based mouthpieces. In Examples 1 to 3, the ratio of each metal was within the above range. These are the test results for the lumber.
- Example 5 and Example 6 are the test results of the PdCuNiP-based mouth material, of which Example 5 is the test result of the brazing material in which the ratio of each metal is within the above range. is there.
- Examples 7 and 8 show the test results of the PtCuNiP-based mouthpiece, and Example 7 shows the test results of the mouthpiece in which the ratio of each metal is within the above range.
- Examples 9 to 12 in Table 4 are PdAuNiP brazing materials obtained by adding Ni and Au to the Pd-P type filler material.
- Example 9 to Example 12 are examples. Up to 11 are the test results for brazing filler metals with the proportion of each metal within the above range.
- Example 13 and Example 14 Example 14 is a Pt-P-based filler obtained by adding Au and Ni. Of these, Example 13 is a brazing filler metal in which the proportion of each metal is within the above range. These are the test results for the materials.
- the brazing materials according to the present invention all show good corrosion resistance. Also, the bonding strength was 79 OMPa in Example 7 and 80 OMPa in Example 11 was slightly inferior to Comparative Example 1, but the other examples were all lower than Comparative Examples 1 and 2. Also show good values.
- the brazing material according to the present invention can be brazed at a temperature below the transformation point of Ti, but in Comparative Example 1, the brazing temperature is The temperature reaches 1000 ° C and exceeds the transformation point of Ti.
- the brazing material according to the present invention satisfies all three requirements that it has good corrosion resistance and sufficient joining strength, and that it can be welded at a temperature below the transformation point of Ti. It has become something.
- FIG. 7 shows a case in which four first cans 3, 5, 7, 9 are joined to the watch case body 1 using a PdPtNiP-based brazing material as the first brazing material according to the present invention.
- FIG. 2 is a perspective view showing the watch case 2 shown.
- the watch case main body 1 has a thin-walled cylindrical wall portion made of Ti and a bottom portion, and is mirror-finished including a joint surface with the leading can portion.
- Each of the front cans 3, 5, 7, and 9 is made of Ti alloy and is formed by grinding and polishing, and a hairline surface is applied to an outer surface except for a joint surface with the watch case body 1. .
- all of the leading can parts 3, 5, 7, and 9 are pre-drilled for the panel rod holes 11 in advance.
- the watch case main body 1 and the front cans 3, 5, 7, and 9 are each formed by forging.
- the PdPtNiP-based brazing material 19 ((1 3 4 wt%, P t 5 3 wt%, 1 8% by weight,? 5 pressed sandwich the wt%), followed was solid boss in jig (not shown), pressure 6 X 1 0- 6 T orr in our 7 0 The mixture was heated at a temperature of 0 ° C for 20 minutes, and then rapidly cooled in an Ar atmosphere.Instead of the PdPtNiP-based brazing material, the PdAuNiP-based Material (P d 7 2 wt%, a u 1 1 wt 0/0, N i 1 0 weight 0 /., P 7 wt%) may be used.
- the brazing material according to the present invention completely penetrates into the joint between the watch case main body 1 and each of the leading can parts 3, 5, 7, and 9, and both are completely integrated from the appearance.
- Case 2 was obtained. Since the temperature of the watch case 2 when heated is lower than the transformation point of Ti, the crystal state of Ti is not coarsened, the surface state before joining is maintained, and the watch case body 1 The interface between each of the can parts 3, 5, 7, and 9 is cleanly formed. Furthermore, sufficient tensile strength (joining strength) was obtained at the joint.
- the desire to expand the degree of freedom in design has led to a strong demand for watch cases to be manufactured separately from the watch case body and the leading part, with different surface conditions.
- the watch case body has a mirror surface finish
- the leading end has a hairline surface finish.
- the watch case is conventionally manufactured as an integrated part, including the front can for connecting the bands. Since the boundary between the two is continuous, the watch case body with mirror finish and the hairline It was difficult to make the boundary surface with the front part of the surface finish properly.
- the watch case was made integral, it would be cost-effective to manufacture it by forging, but there was a drawback that the shape of the front can part was greatly restricted in terms of design.
- a panel rod hole for inserting a panel rod for attaching the pan is formed by post-processing with a drill, but because it is not desirable from the outside when viewed from the outside, the panel rod hole is I had to open it from the inside of the tip part. For this reason, it is difficult to make a hole, and the opposing tip block interferes with making the panel rod hole. For example, as shown in FIG. It could not be formed perpendicular to the machined surface 7a of the part 7, and it had to be formed obliquely.
- the metal that is successfully joined with the brazing material according to the invention is titanium.
- a typical alloy of titanium, for example, Ti-6A1-4V has a transformation point of 995 ° C, so that the brazing material according to the present invention is sufficiently applicable to titanium alloys. is there.
- the present invention is not limited to titanium, and the brazing material according to the present invention can be applied to, for example, stainless steel, and can be applied to metals requiring decorative appearance.
- the shape of the brazing material according to the present invention is not limited. Considering the convenience of joining work, it is desirable to make the plate, foil, linear, etc., but depending on the composition, it may have some brittleness, so in that case powdered Afterwards, it may be compacted and used.
- the heating temperature at the time of soldering is set at about 62 to 85 ° C., preferably at 65 to 75 ° C., and the brazing time is about 5 minutes to 1 hour.
- the atmosphere in the furnace at the time of attachment is preferably at a pressure of 10 to 4 Torr or less.
- the brazing filler metal according to the present invention is suitable for attaching a metal such as Ti or stainless steel, which is required to have a decorative appearance.
- a metal such as Ti or stainless steel
- no flattering is required for brazing, and post-processing after brazing is not required. Is also suitable.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Die Bonding (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002508603A JP3830891B2 (ja) | 2000-07-11 | 2001-07-11 | ロウ材 |
EP01949932A EP1300214B1 (en) | 2000-07-11 | 2001-07-11 | Brazing filler metal |
DE60120408T DE60120408T2 (de) | 2000-07-11 | 2001-07-11 | Lötfüllmaterial |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000209685 | 2000-07-11 | ||
JP2000-209685 | 2000-07-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002004164A1 true WO2002004164A1 (fr) | 2002-01-17 |
Family
ID=18706053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/006001 WO2002004164A1 (fr) | 2000-07-11 | 2001-07-11 | Metal d'apport pour brasage |
Country Status (6)
Country | Link |
---|---|
US (1) | US20020170633A1 (ja) |
EP (1) | EP1300214B1 (ja) |
JP (1) | JP3830891B2 (ja) |
CN (1) | CN1189286C (ja) |
DE (1) | DE60120408T2 (ja) |
WO (1) | WO2002004164A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110976748A (zh) * | 2019-11-22 | 2020-04-10 | 广东长盈精密技术有限公司 | 不锈钢表壳的锻压方法、制作方法以及不锈钢表壳 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3554305B2 (ja) * | 2001-11-06 | 2004-08-18 | 株式会社Neomax | ブレージングシートの製造方法並びに熱交換器の流路構造 |
US6863995B2 (en) * | 2003-05-16 | 2005-03-08 | Praxair S.T. Technology, Inc. | Method for brazing components using a Ni-Au-P ternary brazing alloy, the assembly so produced and the ternary alloy |
US9093257B2 (en) | 2011-05-06 | 2015-07-28 | Koninklijke Philips N.V. | Sealing compound and ceramic discharge vessel comprising such sealing compound |
EP2946029A4 (en) * | 2012-09-20 | 2016-11-30 | Seidel Pessach | CORROSION RESISTANT COMPOSITIONS FOR SOLDERING TITANIUM AND COATING APPLICATIONS AND METHOD OF APPLICATION |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5471748A (en) * | 1977-11-21 | 1979-06-08 | Seiko Epson Corp | Brazing filler metal |
JPS54109049A (en) * | 1978-02-16 | 1979-08-27 | Seiko Epson Corp | Brazing metal |
JPS61291939A (ja) * | 1985-06-17 | 1986-12-22 | Nippon Denso Co Ltd | 非酸化物セラミックヒータ用金属ロー材 |
JPH0360893A (ja) * | 1989-07-28 | 1991-03-15 | Tanaka Kikinzoku Kogyo Kk | パラジウムろう合金 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2123330A (en) * | 1932-07-14 | 1938-07-12 | Heraeus Gmbh W C | Palladium alloy |
EP0638656A4 (en) * | 1993-02-03 | 1995-06-07 | World Metal Co Ltd | ALLOY TO BE COATED, PLATING METHOD AND PLATING SOLUTION. |
-
2001
- 2001-07-11 EP EP01949932A patent/EP1300214B1/en not_active Expired - Lifetime
- 2001-07-11 JP JP2002508603A patent/JP3830891B2/ja not_active Expired - Fee Related
- 2001-07-11 CN CNB018019846A patent/CN1189286C/zh not_active Expired - Fee Related
- 2001-07-11 US US10/069,955 patent/US20020170633A1/en not_active Abandoned
- 2001-07-11 WO PCT/JP2001/006001 patent/WO2002004164A1/ja active IP Right Grant
- 2001-07-11 DE DE60120408T patent/DE60120408T2/de not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5471748A (en) * | 1977-11-21 | 1979-06-08 | Seiko Epson Corp | Brazing filler metal |
JPS54109049A (en) * | 1978-02-16 | 1979-08-27 | Seiko Epson Corp | Brazing metal |
JPS61291939A (ja) * | 1985-06-17 | 1986-12-22 | Nippon Denso Co Ltd | 非酸化物セラミックヒータ用金属ロー材 |
JPH0360893A (ja) * | 1989-07-28 | 1991-03-15 | Tanaka Kikinzoku Kogyo Kk | パラジウムろう合金 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1300214A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110976748A (zh) * | 2019-11-22 | 2020-04-10 | 广东长盈精密技术有限公司 | 不锈钢表壳的锻压方法、制作方法以及不锈钢表壳 |
CN110976748B (zh) * | 2019-11-22 | 2021-08-13 | 广东长盈精密技术有限公司 | 不锈钢表壳的锻压方法、制作方法以及不锈钢表壳 |
Also Published As
Publication number | Publication date |
---|---|
DE60120408D1 (de) | 2006-07-20 |
EP1300214A4 (en) | 2004-10-06 |
EP1300214B1 (en) | 2006-06-07 |
JP3830891B2 (ja) | 2006-10-11 |
EP1300214A1 (en) | 2003-04-09 |
DE60120408T2 (de) | 2007-05-24 |
CN1386082A (zh) | 2002-12-18 |
CN1189286C (zh) | 2005-02-16 |
US20020170633A1 (en) | 2002-11-21 |
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