TW209187B - - Google Patents

Description

A6 B6 209JL8? Fifth, the description of the invention (]) [Industrial application field] The aluminum alloy brazing material containing flux and the inscribed soldering piece containing flux of the present invention, because no additional supply of flux is needed during brazing, so the ratio Previous flux brazing can simplify brazing and engineering. In particular, when brazing products with a large number of joints are used, for example, when manufacturing various aluminum heat exchangers, the brazing time can be greatly shortened, so the effect of simplifying the brazing process is great. [Technical Field] The present invention relates to a Ming alloy brazing material used in flux brazing of Ming or its alloy materials, especially a new aluminum alloy brazing material with flux, and the use of such a new aluminum alloy brazing material Cladding (clad) in the aluminum welding piece of the core material. [Background Art] Conventionally, flux brazing of aluminum or its alloy materials was performed by applying brazing material to the joint while applying the flux by applying a suspension or the like, and heating it in this state. At the same time, in terms of ease of manufacturing the brazed product, aluminum welding is performed on one or both of the aluminum or its alloy materials to be joined with the core material coated on one side or both sides as the brazing material layer skin material Piece composition. Then, when flux brazing is performed using such aluminum solder pieces, the flux is also applied to the joint portion by applying a suspension liquid or the like, and heating is performed in this state. However, no matter whether aluminum brazing pieces are formed or not when manufacturing brazed products, due to the previous brazing of the flux, the brazing material and the paper size must be supplied separately at the joints. The Chinese National Standard (CN'S) A4 specifications (210 X 297 public goods) (Please read the precautions on the back before filling out this page) Dance. I. Printed by the Employees ’Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs Printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economics 209187 A6 ____B6 V. Description of the invention (2) Flux, so it is very troublesome in operation. Moreover, the amount of applied solder will vary, and at the same time, when the amount of coating is small, it will cause poor soldering. When the amount of coating is large, the flux will remain in the brazed product, which reduces the appearance quality or surface treatability of the product. There is the problem of flux drooping and contaminating the brazing furnace. On the one hand, in order to eliminate the additional supply of flux and brazing material to the joint, the AP-Si powder and flux powder constituting the brazing material are also mixed with a binder such as acrylic (acryl) to become a liquid, because it is applied to The joint part tries to simplify the work. However, at this time, there is a possibility that the brazing property may be reduced due to mixing of the binder. The present invention was developed in view of such a technical background, and its purpose is to braze flux of aluminum or its alloy materials to solve the aforementioned problems, and to provide a solution that can eliminate the unevenness of the flux supply and make the brazing property hard. The appearance quality and surface treatment of the welding product are excellent, and the aluminum alloy brazing material containing flux that can simplify the brazing process, and the aluminum welding piece using the aluminum alloy brazing material containing flux. [Disclosure of the Invention] The series of aluminum alloy brazing materials containing flux according to the present invention are characterized in that, in order to achieve the aforementioned purpose, they basically include Aj ?, Si, and flux, and at the same time, the total content of elements other than flux, Si content It is 3 ~ 15 wt%, and the total amount of elements other than the flux and the flux are mixed in a weight ratio of 99.9: .1 ~ 70: 30, and the density is 9Q% or more of the theoretical value. In addition, the components of the brazing material are one or more than one of Zn, Sn, and In, and the size of the paper is in accordance with the Chinese National Standard (CNS) Grade 4 (210 X 297 public goods). (Please read the precautions on the back before filling out this page) • Pack _ Order.-丨 Line- -4-20918 ^ A6 B6 V. Description of the invention (3) The total content of the elements other than the agent, Zn content is 0. 1 ~ 5wt%,

A Sn-containing aluminum alloy brazing material containing flux is added in the range of 〇i ~ 0.5wt%, In content is added in the range of 〇1 ~ 0.5wt%. At the same time, a series of aluminum welding sheets containing fluxes in another invention of Benyu, the special emblem is that on at least one side of the core material made of aluminum or its alloy material, the package is made of the aforementioned various aluminum alloys containing flux. The skin material made of welding material, and the thickness of the skin material is 1 or more on one side. Among the above components, Aj? And S i will be used as the brazing material function for joining aluminum or its alloys, but the total content of elements other than the flux S i contains ;: less than 3 wt%, or exceeding At 15 wt%, the liquidus temperature will become high, making brazing difficult. Therefore, the Si content must be within a range of 3 to 15 wt% for the total value of elements other than flux. The particularly ideal Si content is 6 to 12 wt%. Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions on the back before writing this page) τ At the same time, Zn, Sn, I η will make the potential of the brazing material low and increase the sacrifice anode effect Corrosion resistance of aluminum brazing products. In terms of this effect, Zn, Sn, and I η are all evaluated as equivalents, and at least one of them should be included. Therefore, for the total content of elements other than flux, Z η content is less than 0. lwt%, Sn content is less than 0. 0lwt%, In content is less than 0, 0lwt% will lack the above effects. On the one hand, when the Zn content exceeds 5wt%, the Sn content exceeds 0.5wt%, and the In content exceeds 0.5wt%, the sacrificial anode effect will also be saturated. Therefore, for the total content of elements other than the flux, the Zn content must be specified as 0 · 1 ~ 5wt%, the Sn content is the paper scale, and the Chinese Nursery Standard (CNS) A 4 specification (210 X 297 Public Issues> 20918? A6 B6 The Ministry of Economic Affairs Central Standards Bureau Employee Consumer Cooperative printed 3 clothes 5. Description of invention (4) 0.01 ~ 0.5 wt%, In content is 0.01 ~ 0.5 wt%. Particularly ideal content is Zπ: 0, 5 ~ 2, Owt%, Sn: 0.05 ~ 0.3wt%, In: 0.03 ~ 〇 · 1wt% 0 At the same time, in addition to the above elements, in order to improve the strength of the brazing material, it can also be used Contains Cu. The content of Cu is preferably 0.5 to 5 wt% for the total value of the element other than the flux. Although the type of the flux is not particularly limited, it is preferably a fluoride-based or chloride-based flux. As the fluoride-based flux, eutectic components such as 45-8% KF-54-2% Aj? F3 or even complexes containing a similar range of components and substantially complexed can be used Mixture, KAI F4 > K 2 A 5 F 5 > K3Ai? F6, etc. At the same time, as a chloride-based flux, as inhibitor The meaning of the corrosion of the brazed part is preferably the one with low hygroscopicity. Specifically, it is ideal to BaCj? 2, NaCi ?, KCj ?, ZnC ^ 2 as the main component, BaCi? 2-NaC5-KCj? The ternary eutectic composition is a representative example. The mixing ratio of the flux in the brazing material must be a total of one or more than one of the elements other than the flux, namely AP and Si and Zn, Sn, I η, It is set to 99.9: 0 · 1 ~ 7 0: 30 by weight ratio with flux. When the flux amount becomes less than 9 9 · 9 ~ 0.1 by weight ratio, it will not be able to fully play the role of flux. It will make brazing difficult. On the one hand, when the amount of flux exceeds 7 Q: 30, it will be difficult to solidify the flux and Αβ, Si, etc., and make the brazing material containing flux (please first H Read the precautions on the back and then fill out this page) _ Binding and Ordering. • -Line-This paper scale is applicable to the Chinese National Standard (CNS) A 4 specifications U10 X 297 public *) Α6 Β6 2〇9 Ιδ ^ V. Description of invention (5 ) The body is difficult to manufacture. The total amount of elemental cord other than flux and the ideal mixing ratio of flux are based on a weight ratio of 9 9 · 9: 0. 1 ~ 8 5: 15 and a reset ratio of 9 8: 2 ~ 9 〇: 1 〇 Ideal. Regarding the flux-containing aluminum alloy brazing material of the present invention, generally, A5 powder, Si powder, and one or more powders of Zn, Sn, and I η are mixed with flux powder, and are produced by hot stamping and isostatic powder curing. However, the density of the aluminum alloy brazing material containing flux due to the residual of internal air will usually be lower than the theoretical value calculated from the density of Α 芡, Si, Zn, Sn, Iπ, flux monomer. Therefore, in the present invention, the density of the brazing material must be 90% or more of the theoretical value. When the density of the brazing material is less than 90% of the theoretical value, although AJ ?, Si, etc. are solidified with the flux, they will be connected to the inside with bubbles and become vulnerable, and the subsequent secondary processing is also difficult and practical. Those with poor performance as brazing materials. It is particularly desirable to make the density of the brazing material more than 95% of the theoretical value. Hereinafter, a description will be given of an ideal specific method for manufacturing the flux-containing aluminum alloy brazing material of the present invention. That is, first, A-type powder, Si powder, and one or more powders and flux powders of Zn, Sn, and I η are prepared as starting materials. In order to make these powders uniformly mixed, Ai? Powder has an average particle size of 4 4 or less, Si powder has an average particle size of 5 # m or less, and Zn, Sn, I η powder has an average particle size of 4 4 // m or less, the flux powder has an average particle size of 30 and "Hi" or less is preferably finely pulverized in advance. Furthermore, as a starting material, it is not necessary to use A $, Si, Zn, Sn, I η as a single substance, but also powder of Αβ — Si alloy, or in the form of alloy containing Zn η etc. use. The size of the attached paper is in accordance with Chinese National Standard (CNS) A4 specifications (210 X 297 mm) ---------------------- installed ------ ΤΓ ------ ^ (Please read the precautions on the back before writing this page) A6 2091¾7 B6 printed by the Central Standard Residence Employee Consumer Cooperative of the Ministry of Economic Affairs 5. Description of the invention (6), mix the above powders After the above-mentioned mixing ratio is set, after filling the container such as an aluminum can, the container is degassed to 1 mmHg or less, and then heated and pressed by hot stamping and powdering. Then, the can body on the outside of the obtained hot press formed body is cut off. After the removal, the formed body is subjected to secondary processing such as extrusion to obtain a desired aluminum alloy brazing material containing flux. Furthermore, regarding the aluminum-containing soldering sheet of the present invention, for example, as shown in FIG. 1, the aluminum alloy brazing material containing the aforementioned flux is used as the skin material (2), and the core material (1) The surface or both sides are coated to become a welding sheet. When the thickness of the skin material (2) is less than 10 on one side, the brazing material required for brazing will be insufficient to make brazing difficult, so it must be at least 10. In particular, it is desirable to ensure that the thickness of the leather material (2) is more than 20 pm on one side. The manufacturing of the aluminum welding sheet containing the flux is made by processing the flux-containing aluminum alloy brazing material manufactured into the plate-like skin material (2) by heating and pressing the heating, and hot rolling if necessary, It can be performed by cold rolling. Furthermore, the composition of the aforementioned core material (1) is not particularly limited, as long as the material used as the core material of the aluminum welding sheet is used. For example, 3000 series aluminum alloys such as J ISA3003, 3005, or A6 can be used. 9 5 1 etc. 6 0 0 0 series aluminum alloy is sufficient. In the present invention, the aluminum alloy brazing material containing flux and the inscribed soldering piece containing flux are supplied to the joint portion together with the melting of the brazing material during brazing. The oxide film will be removed to make the brazing material wet and expand to achieve a good and strong brazing joint. Therefore, there is no need to apply additional flux, but can simplify brazing- 丨 -1 ---------- I! ---------- install ------ order-- ---- Line (please read the precautions on the back before filling in this page) 3 Gongxiao #Cooperatives printed by the Central Bureau of Standards of the Ministry of Economic Affairs * · 1 The size of the paper is in accordance with the Chinese National Standard (CNS) A 4 specifications (210 X 297 Mm) 5. Description of invention (7) Engineering, which can improve the productivity of aluminum brazing products. At the same time, because the flux is mixed in the brazing material, the appropriate amount and a certain amount of flux can be supplied to the bonding piece, and the appearance quality and surface treatability of the brazed product supplied by the excess flux can be avoided, and Disadvantages such as contamination in the brazing furnace. Furthermore, since the addition of Z η, S η, I η added to the brazing material will increase the corrosion resistance of the anode effect, it can be ideally used in the production of brazing products that require corrosion resistance. [Examples] Hereinafter, examples of the present invention will be described with reference to the drawings. When manufacturing aluminum alloy brazing materials containing flux and aluminum welding pieces containing flux, prepare aluminum powder with a purity of 9 9 · 5% as the starting material (average particle size 4 4 // rn), Si Powder (average particle size 5 #m), Zn powder (average particle size 4 4 pm), Sn powder (average particle size 4 0pm), ιη powder (average particle size 4 0 " m.), Vaporized system flux powder Zhu (average particle size 3 0 #m). In addition, KF and A V F3 eutectic components are used as flux. (Example 1) First, the mixing ratios of the above powders were changed to the ratios shown in Table 1. No. I1 to 1 7 were mixed uniformly at room temperature, and each mixture was filled in the atmosphere to a diameter of 3 Bronze X aluminum can with a length of 200 mm. Then, these aluminum cans were placed in a 500 ° C furnace to degas the aluminum cans to 1 mm Hg or less. Next, heat the above aluminum can to. 丨 install · order. Central Department of Hydrocarbon Economics 銈 居 ίκτ- 消 贽 cooperative cooperative print ¾

A6 B6 2〇9i * ^ * Fifth, the description of the invention (7) (please read the precautions on the back before filling in this page) engineering, which can improve the productivity of aluminum brazing products. At the same time, since the flux is mixed into the brazing material, a certain amount of flux can be supplied to the bonding pads, and the appearance quality and surface treatability of the brazed product supplied by excess flux can be avoided, and the hard Disadvantages such as contamination in the welding furnace. Moreover, since the anode effect of Zn, Sn, In added to the brazing material will improve the corrosion resistance, it can be ideally used in the production of brazing products that require corrosion resistance. [Examples] Hereinafter, examples of the present invention will be described with reference to the drawings. Λ \ Prepare aluminum powder of 9 9 · 5% purity (average particle size \ 4 ^ m), Si powder (average Particle size 5 # m), Z η powder (flat + particle size 4 4 μιη), Sn powder (average particle size 4 0 ^ m), z \ powder (average particle size 4 0 " m), fluoride system \ flux Powder (average grain \ diameter 30 // m). Furthermore, K F and A F 3 are used as flux for printing by the Ministry of Economic Affairs, Central Bureau of Standards, Workers and Consumers Cooperatives *

(First embodiment) First, the above powders were changed to the mixing ratio so that the ratios No. 1 to 17 shown in Table 1 were uniformly mixed at room temperature, and each mixture was filled in the atmosphere to a diameter of 3 inches. Inch X length 200mm aluminum can. Then, mix these aluminum cans in a 500 ° C furnace to degas the aluminum cans below ImmHg. Next, heat the above aluminum can to the paper standard applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297 public issue) n 209187 _ ^ _ V. Description of the invention (8) 4 8 0 ° C, use hot stamping to The maximum pressure is 400 tons by hot press forming, and as a result, the length of the formed body becomes 110 mm. After that, the Ming can body attached to the outside of the molded body was removed by cutting, and then extruded into a flat plate with a thickness of 2 mm x a width of 50 mm by a hot extruder at 500 ° C to obtain an aluminum alloy brazing material containing flux. Table 1 shows the possibility of extrusion molding at this time. In addition, the density of the flat aluminum alloy brazing material containing flux that can be extruded by the above method is determined and compared with the theoretical density calculated from each starting material. The results are shown in Table 1. (Please read the precautions on page f before writing this page)-Binding ------ like the Central Standards Bureau of the Ministry of Economic Affairs, 3 Industrial and Consumer Cooperatives Co., Ltd. * '| Clothing Paper Standard General Chinese National Standard (CNS) A 4 Specifications (21ϋ x 297mm)

2091BV A6 B6 V. Description of invention (9) Table 1 Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs

No. Find examples of each element of the total of people, Si, Zn, etc. ("t%) The total ratio of people 1 and 51, etc. and the proportion of flux (reset ratio) Extrusion is possible (Note 1) Density theory input value Si Zn Sn In A1 1 1 * — — — residual 90:10 〇98 like h invention 2 5 — — one residual 90:10 〇im 3 5 — — — residual 68:32 * X — invention 4 10 — — residual 95: 5 〇9sm ± im 5 10 — — residual 100: 0 〇98% PXt invention 6 10 — — — residual 90:10 〇98¾ or more 7 10 — — residual 68:32 * 〇 98 Xian Dagger 8 20 — — Residual 90: 10 X — Invention 9 5 2.0 — — Residual 90:10 〇98 «Ri: tm 10 5 2.0 — — Residual 68:32 * X — Invention 11 10 — 0.2 — Residual 95: 5 〇 %% ί> Λ ± 12 10 — — 0.2 residual 92: 8 〇98% ΡΛ ± im. 13 10 — 0.2 0.2 residual 100: 0 · 〇98 similar to the invention 14 10 1.0 0.1 0.1 residual 90: 10 〇98 % & ± 15 15 2.0 2.0 — residual 68:32 * X — 16 20 * — — 0.2 residual 90:10 〇98 version h 17 10 _ · one · _ · residual 90:10 〇98% ΡΛ ± β record A squid means outside the scope of the present invention. Note 10 ... Extrusion may occur X ......... Electric cracking occurs during extrusion. The paper size is in accordance with Chinese National Standard (CNS) A 4 specifications (210 X 297 public goods ) (Please read the precautions on the back before writing this page) 11 A6 B6 2091S? V. Description of the invention (l (j > Next, the aluminum alloy hard solder containing flux can be extruded g

No. 1, 2, 4 ~ 7, 9, 11 ~ 14, 16,] _ 7, cut out to length 10mm × width 10mm × thickness 2mm. Then, arrange these cut pieces on a JI SA3 0 0 3AJ2 alloy plate with a length of 100 mmX, a width of 5 mm, and a thickness of 2 mm, and heat them in a N2 environment and in the atmosphere at 6 0 0 ~ 6 2 0 ° CX1 0 minutes Observe the expanded state of the brazing material and evaluate its brazing properties. The results are shown in Table 2. At the same time, apply No. 2, 4, 6, 9, 1 1, 1, 2, 14, 17 with good brazeability to apply the salt water spraying of J ISZ2371 for 1,000 hours, check the aforementioned A3 0 0 3 aluminum alloy The corrosion state of the covered part of the brazing material of the board is evaluated for corrosion resistance. The results are shown in Table 2. In addition, the results of the corrosion resistance test were the same when the aforementioned brazeability test was performed in the atmosphere of 2 ^ 2 and the atmosphere, so Table 2 shows the results of the corrosion resistance test in a comprehensive manner. (Please read the precautions on the back and then write this page) _Installation and ordering. -Line. Economics. Ministry of Economy, Central Standards Bureau, 3 Industrial and Consumer Cooperatives Co., Ltd. ¾ This paper standard is common to the Chinese National Standard (CNS> A4 specifications (210 X 297 public goods) 12

2091BV A6 B6 V. Description of the invention (π) Table 2 Hard solderability of the brazing material (Note 1) Corrosion resistance No Atmospheric n2 gas (Note 2) Comparison 1 XX — Invention 2 〇〇Δ 4 〇〇 △ Comparison 5 XX — Invention 6 〇〇 △ Comparison 7 △ △ — 9 〇〇〇 Invention 11 〇〇〇12 〇〇〇 Comparison 13 XX — Invention 14 〇〇〇 Comparison 16 A △ —- 17 〇〇 △ 1 2 Note ΟΔ ΧΟΔ Kairun Zhanwei FE. Bgp injury ^ Wetland wetland is not fully eroded, only a few erosion materials, decayed materials and materials are now welded Welding hair welding department is hard and hard The matters needing attention will be written on this page) The standard of printed paper for garments of the Employees' Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs is applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297 mm) -13 The Central Bureau of Standards of the Ministry of Economic Affairs S Industrial and Consumer Cooperative Printed 203iS7 A6 ---___ B6 V. Description of the invention (12) (Second embodiment) In the first embodiment, the aluminum alloy brazing materials No. 1, 2, 4 containing flux that can be extruded ~ 7, 9, 11 ~ 14'16, 1 7 'thermocompression bonding thickness 2 OmmX width 5 Omm X length 2 0 of J I SA3 Ο Ο 3A)? Two sides of the core material made of alloy extruded plate. The crimping material was cold rolled, and two kinds of fluxes with a degree of lmm (thickness of one side of the skin material: about 1mm) (thickness of one side of the skin material: about 8.3 // m) were prepared. Aluminium soldering sheet. Next, cut each of the aforementioned aluminum soldering sheets containing flux to a length of 50 mmX and a width of 3 Omm. Then, cut out these pieces at a length of 50 mmX and a width of 3 OmmX and a thickness of 1 mm. JI SA3 0 0 3 The aluminum alloy plate is arranged in a vertical state to form an inverted T junction, and both are heated in a N2 environment and in the atmosphere at 6 0 0 ~ 6 2 0 ° CX10 minutes for brazing, and the brazing performance is evaluated. The results are shown in Table 3. At the same time, the No. 2, 4, 6, 9, 11, 12, 14, and 17 brazed products with good brazing properties (thickness of aluminum soldering sheet containing flux of 1 mm) , Check the corrosion status of the core material for JI SZ 2 3 7 1 with salt water spraying for 1000 hours, and evaluate the corrosion resistance. The results are shown in Table 3. Furthermore, the above hard The results of the corrosion resistance test are the same when the solderability test is performed in the N2 environment and in the atmosphere. Therefore, the corrosion resistance is summarized in Table 3 (Please read the precautions on the back and then write this page) r 丨 Packing. Ordering ... Line-This paper is again in accordance with the Chinese National Standard (CNS) A 4 specifications (210 χ 297 mm) 14 209187 A6 B6 5. Description of the invention (13) Table 3

Brazing material brazing performance (Note 1) Corrosion resistance No Atmospheric N2 gas (1mm) 1mm 0. Ιππώ 1mm 0.1mm (Note 2) Comparison 1 XXXX — Invention 2 〇X 〇XX 4 〇X 〇XX Comparison 5 XXXX One Invention 6 〇A 〇Λ X Comparison 7 △ X Δ X — 9 〇X 〇X 〇 Invention 11 〇X 〇X 〇12 〇X 〇X 〇 Comparison 13 XXXX — Invention 14 〇Δ 〇Δ 〇 Comparison 16 △ XAX 17 〇X 〇XX 1 2 Note (please read the precautions on the back before filling in this page). Installed. ΤΓ.. Line. Printed by the employee consumer cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 〇 △ x〇x welded hard. Good location. Good and bad can be welded instead of brazed, hard open and moist, showing wet and moist parts. Only a few hungry servings. Corrosion materials erosion of heavy materials, decay, welding, welding, welding, hard, hard, hard, no paper size, universal Chinese national standard (CNS) A 4 specifications (210 X 297 public goods) 15 209iS! ^ A6 B6 V. Description of the invention (14) From the results in Table 2, it is confirmed that the flux-containing chain alloy brazing material according to the present invention not only does not apply in a N2 gas environment, but also does not require additional application of flux even in the atmosphere The brazing property, and by adding Zn, Sn, I η to the brazing material, the corrosion resistance of the brazing product can be improved. At the same time, from the results in Table 3, it can be confirmed that the flux-containing aluminum soldering sheet formed from the aforementioned flux-containing aluminum alloy brazing material with a predetermined thickness is as excellent as the flux-containing aluminum alloy brazing material. The brazing and corrosion resistance. Furthermore, regarding the flux-containing aluminum alloy brazing material of the present invention, if the Si and the flux content are within the range of the present invention, since the processability such as extrusion and pressure bonding is excellent, it is easy to form outside the solder sheet, and It can be formed into complex shapes by punching, etc., and can be used for brazing aluminum components of various shapes. At the same time, it is also easy to shape the aluminum welding sheet into the desired shape. Brief description of the drawing 1 is a cross-sectional view of the aluminum soldering sheet containing flux of the present invention. (Please read the precautions on the back before writing this page) Cooperative cooperative printing * !! The size of the paper on paper is compliant with the Chinese National Standard (CNS) A 4 specifications (210 X 297 public goods) -16

Claims (1)

A7 B7 C7 D7 Printed by R Industry and Consumer Cooperative of the Central Department of Economics of the Ministry of Economic Affairs 6. Scope of Patent Application 1 · An aluminum alloy brazing material containing flux, the specialty of which contains A ''s i and flux, and other than flux The total content of the elements s! The content is 3 ~ 1 5 wt%, and the total amount of elements other than the flux and the flux are mixed in the ratio of the retake ratio of 99.9: 0.1 ~ 70: 30, and the density is the theoretical value 90% or more. 2 '· The aluminum alloy brazing material containing flux as described in item 1 of the scope of patent application, wherein the total content of the components of the brazing material other than the flux, the Si content, is 6 to 12 wt%. 3. The aluminum alloy brazing material containing flux as described in item 1 of the patent application park, wherein, in the composition of the brazing material, the total amount of elements other than the flux and the flux are at a reset ratio of 99.9: 0.1 ~ 85: 15 ratio partner. 4 The aluminum alloy brazing material containing flux as described in item 1 of the scope of the patent application, wherein, in the composition of the brazing material, the total amount of elements other than the flux and the flux are in a weight ratio of 9 8: 2 ~ 9 〇: 1 〇 Proportion partner. 5 _ —Aluminum alloy brazing material containing flux, which is characterized by including Aj ?, Si and flux, and further contains one or more of Zn, Sn, I η, and the total content of elements other than flux si The content is 3 ~ 15wt%, the Zn content is 0 · 1 ~ 5wt%, the Sn content is 0.01 ~ 0.5wt%, the In content is 0.01 ~ 0.5wt%, and the total amount of elements other than flux and flux The weight ratio is 9 9. 9:. 1 ~ 7 0: 3 0, and the density is 90% or more of the theoretical value. ^ s. l · Read the content and then write this page. Binding paper size is applicable to China National Standard (CNS) A 4 specifications (210 X 297 mm) -17-WX Consumer Cooperation Th印 β 200 B7 C7 ------___ D7 _ 6. Patent application group 6. The aluminum alloy brazing material containing flux as described in item 5 of the scope of patent application, in which The total content Si of the flux is 6 ~ 12wt%. 7 · The aluminum alloy brazing material containing flux as described in item 5 of the scope of the patent application, wherein, in the composition of the aforementioned brazing material, the sum of the elements other than the flux and the flux are reset to 9 9. 9: 0. 1 ~ 8 5: 1 5 ratio. 8 • The aluminum alloy brazing material containing flux as described in item 5 of the patent application park, wherein the composition of the brazing material, the sum of elements other than the flux, and the flux are in a weight ratio of 9 8: 2 ~ 9 0: 1 0 Proportion of those who cooperate Ο 9 · As described in the application for patent Fanyuan Item 5, the aluminum alloy brazing material containing flux, wherein, in the aforementioned brazing material composition, the total content of the elements other than the flux Zn content is 0.5 ~ 2wt%, Sn content is 0.05 ~ 0.3wt%, In content is 0.03 ~ 0.1wt%. 1 0.—A type of soldering sheet containing flux, mainly consisting of an aluminum soldering sheet with a cladding layer as a brazing material layer on at least one side of the core material made of Ming or its alloy, characterized by the foregoing The skin material contains A $, Si and flux, and the total content of elements other than flux is Si content of 3 ~ 15 wt%, and the total amount of elements other than flux and flux are in weight ratio 9 9. 9: 0 . 1 ~ 7 0: 3 0 ratio, and the density of the theoretical value of 90% or more of the material, and the thickness of the skin material is defined as the one above 10. (I? Read the precautions on lifSc first and then fill out this page) i Pack · Order ... Line. This paper is also suitable for China National Rod (CNS) A 4 specifications (210 X 297 mm) 18 C〇9i ^ ^ B7 "C7 ___ D7 VI. Patent application scope 11 · The inscribed soldering sheet containing flux as described in item 10 of the patent application scope, in which the total content S i content of elements other than the flux in the aforementioned skin material composition is 6 ~ 1 2wt%. 12 · The aluminum welding sheet containing flux as described in item 10 of the patent application range, in which the skin material composition, the total amount of elements other than flux and the flux are in a weight ratio of 99.9: 0. 1 ~ 8 5: 1 5 ratio 0 13 · The aluminum welding sheet containing flux as described in item 10 of the patent scope, wherein the total of the aforementioned skin material components, elements other than flux and flux are The weight ratio is 9 8: 2 ~ 9 0: 1 〇 The proportion of the compound. 14 · As described in the patent application item 10 of the aluminum solder sheet containing flux ', wherein the thickness of the skin material is specified as a single side 2 0 The above ° 1 5 · -Aluminum welding piece containing flux, mainly made of aluminum At least one side of the core material made of its alloy, the aluminum welding sheet with the cladding as the brazing layer of the skin material, which is characterized by being printed by the Zhongfu Duiping Bureau Industrial Consumer Cooperative of the Ministry of Economic Affairs (please read the notes on the back first (Re-write this page)-Install · The aforementioned skin material contains Aj, Si and flux, and contains one or more of Zn, Sn, In, and the total content of elements other than flux is Si content 3 ~ 1 5wt%, Zn content is 0. 1 ~ 5wt%, Sn content is 0. 01 ~ 〇. 5wt%, In content is G. Q 1 ~ 0 _ 5wt%, and the total amount of flux and exogenous flux to flux The weight ratio is 9 9. 9: 0. 1 ~ 7 0: 3 0, and the density is 90% or more of the theoretical value, and the thickness of the skin material is defined as one side 1 0 # m or more . This paper scale is applicable to China ’s 0 Standards (CNS) A4 specifications (210 X 297, 浼) -19-A7 B7 C7 D7 VI. Application for patent Fan Garden 16. As described in item 15 of the patent application scope The soldering sheet of the flux, in which the total content of the elements other than the flux in the aforementioned skin material components is 6 to 12 wt%. Please refer to the aluminum welding sheet containing the flux as described in item 15 of the patent scope, in which the skin material composition, the sum of elements other than the flux and the flux are in a weight ratio of 9 9. 9: 0. 1 ~ 8 5: 1 5 The ratio is matched. 18. The aluminum welding sheet containing flux as described in item 15 of the patent application range, wherein the total weight of the skin material component, the elements other than the flux and the flux are in a weight ratio of 9 8: 2 ~ 9 0: Those with a ratio of 1 to 10. 19. The aluminum soldering sheet containing flux as described in item 15 of the patent application range, wherein the total content of the brazing material component to the flux except for the Zn content is 0. 5 ~ 2wt%, and the Sn content is 0. . 05 ~ 0 · 3wt%, In content is 0 · 03 ~ 0. 1 wt% Those. 2 0 · The aluminum welding sheet containing flux as described in item 15 of the patent application scope, wherein the thickness of the aforementioned skin material is specified to be printed on a single side of 20 ^ m or more. The paper size is in accordance with Chinese National Standard (CNS) A4 specifications (210 X 297 mm)