Anti-impact flux-cored composite solder cake with spiral framework and preparation method thereof

A composite brazing material and impact-resistant technology, which is applied in the manufacture of tools, welding equipment, metal processing equipment, etc., can solve the problems of difficult to accurately control the amount of brazing flux, complicated brazing process, and excessive addition of brazing flux, etc., to achieve easy batch production The effects of chemical production, increased specific surface area, and reduced amount of flux

Pending Publication Date: 2018-05-18
ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
0 Cites 2 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the deficiencies of the above-mentioned technical problems. The present invention proposes a flux-cored composite solder cake with a spiral skeleton for impact resistance and its preparation m...
View more

Abstract

Provided are an anti-impact flux-cored composite solder cake with a spiral framework and a preparation method thereof. The solder cake comprises a narrow-band flux-cored solder and a narrow-band material. The narrow-band flux-cored solder comprises a solder outer layer and a soldering flux core filling the solder outer layer. The solder outer layer comprises, by weight, 44-46 parts of Ag, 24-26 parts of Zn and 28-30 parts of Cu, and a tubular structure with a spiral lap seam is formed by rotating and rolling a belt-like solder prepared through Ag, Cu and Zn in proportions. The soldering flux core comprises a silver soldering flux core. The narrow-band material is a Cu-Ni alloy. The narrow-band flux-cored solder and the narrow-band alloy are continuously wound together at intervals and clamped to each other to be in a disc shape, so that good rigidity and structural stability are achieved; in the soldering process, the Ag-Cu-Zn solder reacts with part of the Cu-Ni alloy to generate a Cu-Ni-Ag-Zn alloy, the soldering seam strength can be improved, a spiral Cu-Ni alloy isolating belt is reserved after welding, stress can be slowly released to a great extent, and the impact performanceof a hard alloy tool is greatly improved.

Application Domain

Welding/cutting media/materialsSoldering media

Technology Topic

Structural stabilityNarrow band +6

Image

  • Anti-impact flux-cored composite solder cake with spiral framework and preparation method thereof
  • Anti-impact flux-cored composite solder cake with spiral framework and preparation method thereof
  • Anti-impact flux-cored composite solder cake with spiral framework and preparation method thereof

Examples

  • Experimental program(4)

Example Embodiment

detailed description:
[0032] An impact-resistant powder-cored composite solder cake with a spiral skeleton. The solder cake 6 is formed by winding a narrow-band solder-core solder 4 and a narrow-band material 5 at intervals to form a flat double helix. The narrow-band solder-core solder 4 and the narrow-band The gap between material 5 is ≤0.1 mm; such as figure 1 with figure 2 As shown, the narrow-band flux-cored solder 4 includes a solder outer layer 1 and a flux core 2 filled in the solder outer layer 1. The solder outer layer 1 includes 44 parts by weight. ~46 parts of Ag, 24~26 parts of Zn and 28-30 parts of Cu, and a ribbon-shaped solder roll made of Ag, Cu, Zn prepared according to the above ratio, is made into a spiral lap joint 3 In the tubular structure, the flux core 2 includes a silver flux core, and the narrow band material 5 is a copper-nickel alloy.
[0033] Further, when the outer layer 1 of the solder is rolled, 0.01 to 0.025 parts of rare earth is added to the Ag, Cu, and Zn ribbon solder according to parts by weight.
[0034] Further, the cross-sections of the narrow-band flux-cored solder 4 and the narrow-band material 5 are both trapezoidal.
[0035] Further, the cross-sections of one end of the narrow-band flux cored solder 4 and the narrow-band material 5 are both semicircular grooves, and the cross-sections of the other end are both drum-shaped.
[0036] Further, the thickness of the solder cake is 0.1-3 mm.
[0037] Further, a method for preparing an impact-resistant cored composite solder cake with a spiral skeleton includes the following steps:
[0038] (1) According to parts by weight, weigh 44-46 parts Ag, 24-26 parts Zn and 28-30 parts Cu, and cast them into a solder ingot, cut off the riser and turn the ingot to remove the oxide scale spare;
[0039] (2) Place the solder ingot in step (1) in a muffle furnace at 460~480℃ for preheating, and put it into the extrusion equipment after preheating to be extruded into ribbon solder;
[0040] (3) Rotate and roll the ribbon-shaped brazing filler metal in step (2) into a tubular structure with spiral lap joint 3;
[0041] (4) Take the silver flux core and put it into the tubular structure prepared in step (3), and press it into a narrow band to form the narrow band flux core brazing filler metal 4 for use;
[0042] (5) Take the copper-nickel alloy ingot, cut off the riser and turn the ingot to remove the oxide scale, and place it in a muffle furnace at 460~480℃ for preheating. After the preheating is completed, put it into the extrusion equipment and extrude into a narrow strip Material 5, spare;
[0043] (6) The narrow-band flux core solder 4 prepared in step (4) and the narrow-band material 5 prepared in step (5) are wound at intervals to form a double helix and are clamped to each other into a disc shape, and cut after winding to obtain A cored composite solder cake with a spiral skeleton for impact resistance.
[0044] Further, in step (6), the winding process uses a winding device 7 which includes a wire end fixing jig 8 and a winding mandrel 9 to fold the ends of the narrow band flux cored solder 4 and the narrow band material 5 respectively Bend, and fix the end of the narrow-band flux-cored solder 4 with the wire end fixing jig 8, and then set the narrow-band material 5 close to the narrow-band flux-cored solder 4, and use the wire end fixing jig 8 to fix the end of the narrow band material 5 It is fixed, and then the mandrel 9 is wound to drive the narrow-band-shaped flux-cored solder and the narrow-band material 5 to rotate to form a double helix and be clamped into a disc shape.
[0045] Further, the cross-sections of the narrow-band flux-cored solder 4 and the narrow-band material 5 are both trapezoidal. During the winding process, the side surface of the narrow-band flux-cored solder 4 and the side surface of the narrow-band material 5 meet, And the cross section of the spliced ​​body is parallelogram.
[0046] Further, the cross section of one end of the narrow band flux cored solder 4 and the narrow band material 5 are both semicircular grooves, and the cross section of the other end is both drum-shaped. During the winding process, the narrow band material 5 One end of the drum shape is inserted into one end of the semicircular groove of the narrow-band flux-cored solder 4 and then wound.

Example Embodiment

[0047] Example 1
[0048] An impact-resistant flux cored composite solder cake with a spiral skeleton. The thickness of the solder cake 6 is 0.1 mm. The solder cake 6 is composed of a narrow band flux core solder 4 and a narrow band material 5 wound at intervals to form a plane double spiral The gap between the narrow-band flux-cored solder 4 and the narrowband material 5 is ≤0.1 mm; the narrow-band flux-cored solder 4 includes an outer layer of solder 1 and a solder filled in the outer layer 1 of solder Reagent core 2, the outer layer 1 of the solder includes 44 parts by weight of Ag, 24 parts of Zn, 28 parts of Cu, and is made of Ag, Cu, Zn, and rare earths prepared in the above proportions The ribbon-shaped solder is rolled into a tubular structure with spiral lap joint 3, such as Figure 4 As shown, the cross-sections of the narrow-band flux cored solder 4 and the narrowband material 5 are both trapezoidal, the flux core 2 includes a silver flux core, and the narrowband material 5 is a copper-nickel alloy.
[0049] Further, a method for preparing an impact-resistant cored composite solder cake with a spiral skeleton includes the following steps:
[0050] (1) According to parts by weight, weigh 44 parts of Ag, 24 parts of Zn and 28 parts of Cu, and cast them into a 50×100 mm rectangular solder ingot, cut off the riser and turn the ingot to remove the oxide scale spare;
[0051] (2) Raise the temperature of the solder extrusion equipment to 480℃, put the solder ingot in step (1) in a 460℃ muffle furnace for preheating, and put it into the extrusion equipment after preheating. Become an 8×100 mm solder sheet and roll it to 2×100 mm, and cut the rolled solder sheet into 1.5×2 mm strip-shaped solder with a trapezoidal cross-sectional area;
[0052] (3) Rotate the trapezoidal ribbon-shaped solder in step (2) into a tubular structure with spiral lap joint 3;
[0053] (4) Take the silver flux core and put it into the tubular structure prepared in step (3), and press it into a narrow band to form the narrow band flux core brazing filler metal 4, which is cleaned and passivated for use;
[0054] (5) Take the copper-nickel alloy ingot, cut off the riser and turn the ingot to remove the oxide scale, and place it in a muffle furnace at 460℃ for preheating. After preheating, put it into the extrusion equipment at a temperature of 480℃. Extruded into 8×100 mm alloy narrow strip, and rolled to 2×100mm, cut the rolled alloy narrow strip into 1.5×2 mm narrow strip material with a trapezoidal cross-sectional area 5, clean and passivate for use;
[0055] (6) Such as image 3 As shown, the narrow-band flux-cored brazing filler metal 4 prepared in step (4) and the narrow-band material 5 prepared in step (5) are wound at intervals to form a double helix and are clamped into a disc shape: the winding process uses a winding device 7, such as Figure 7 As shown, the winding device 7 includes a wire end fixing jig 8 and a winding mandrel 9. The ends of the narrow band flux core solder 4 and the narrow band material 5 are respectively bent, and the wire end fixing jig 8 is used to first fix the narrow band flux core The end of the brazing material 4 is fixed; then the narrowband material 5 is placed close to the narrowband flux-cored brazing material 4, and the end of the narrowband material 5 is fixed with the wire end fixing clamp 8. The cross-section of the narrow-band material 5 is trapezoidal, and the side surface of the narrow-band flux-cored solder 4 and the side surface of the narrow-band material 5 are connected to make the cross-section of the spliced ​​body formed into a parallelogram; then the mandrel is wound 9 drives the narrow-band shaped flux core solder and the narrow band material 5 to rotate and wind to form a double spiral shape and clamp each other into a disc shape; after winding, it is cut to obtain an impact-resistant flux core composite solder cake with a spiral skeleton.

Example Embodiment

[0056] Example 2
[0057] An impact-resistant flux cored composite solder cake with a spiral skeleton. The thickness of the solder cake 6 is 2 mm. The solder cake 6 is composed of a narrow band flux core solder 4 and a narrow band material 5 wound at intervals to form a plane double spiral The gap between the narrow-band flux-cored solder 4 and the narrowband material 5 is ≤0.1 mm; the narrow-band flux-cored solder 4 includes an outer layer of solder 1 and a solder filled in the outer layer 1 of solder The core 2 of the solder, the outer layer 1 of the solder, in parts by weight, includes 45 parts of Ag, 25 parts of Zn, 29 parts of Cu and 0.02 parts of rare earth, and is made of Ag, Cu, The ribbon-shaped solder made of Zn and rare earth is rolled into a tubular structure with spiral lap joint 3, such as Image 6 As shown, the cross section of one end of the narrow band flux cored solder 4 and the narrow band material 5 are both semicircular grooves, and the cross section of the other end is both drum-shaped, and the flux core 2 includes silver brazing The drug core, the narrow band material 5 is a copper-nickel alloy.
[0058] Further, a method for preparing an impact-resistant cored composite solder cake with a spiral skeleton includes the following steps:
[0059] (1) According to parts by weight, weigh out 45 parts of Ag, 25 parts of Zn, 29 parts of Cu and 0.02 parts of rare earth, and cast them into a 50×100 mm rectangular solder ingot, and cut off the riser. And turn the ingot to remove the oxide scale for use;
[0060] (2) Raise the temperature of the solder extrusion equipment to 480℃, put the solder ingot in step (1) in a 470℃ muffle furnace for preheating, and put it into the extrusion equipment after preheating. Into 8×100 mm solder sheet, and rolled to 2×100 mm, cut the rolled solder sheet into 1.5×2 mm strip solder, the cross section of one end of the strip solder It is a semicircular groove, and the cross section at the other end is drum-shaped;
[0061] (3) Rotate the trapezoidal ribbon-shaped solder in step (2) into a tubular structure with spiral lap joint 3;
[0062] (4) Take the silver flux core and put it into the tubular structure prepared in step (3), and press it into a narrow band to form the narrow band flux core brazing filler metal 4, which is cleaned and passivated for use;
[0063] (5) Take the copper-nickel alloy ingot, cut off the riser and turn the ingot to remove the oxide scale, and place it in a muffle furnace at 470℃ for preheating. After preheating, put it into the extrusion equipment at a temperature of 480℃. Extruded into 8×100 mm alloy narrow strip and rolled to 2×100 mm, cut the rolled alloy narrow strip into 1.5×2 mm narrow strip material 5, the cross section of one end of the narrow strip material 5 is semicircular -Shaped groove, the other end of the cross-section is drum-shaped, cleaning passivation treatment for use;
[0064] (6) Such as Figure 5 As shown, the narrow-band flux-cored brazing filler metal 4 prepared in step (4) and the narrow-band material 5 prepared in step (5) are wound at intervals to form a double helix and are clamped into a disc shape: the winding process uses a winding device 7, such as Figure 7 As shown, the winding device 7 includes a wire end fixing jig 8 and a winding mandrel 9. The ends of the narrow band flux core solder 4 and the narrow band material 5 are respectively bent, and the wire end fixing jig 8 is used to first fix the narrow band flux core The end of the brazing material 4 is fixed; then the narrowband material 5 is placed close to the narrowband flux-cored brazing material 4, and the end of the narrowband material 5 is fixed with a wire end fixing clamp 8. The narrowband flux-cored brazing material 4 is connected to the The cross section of one end of the narrow band material 5 is a semicircular groove, and the cross section of the other end is a drum shape. During the winding process, one end of the drum shape of the narrow band material 5 can be inserted into the narrow band flux core solder. 4 One end of the semi-circular groove fixes the two; then winding the mandrel 9 to drive the narrow band-shaped flux core solder and the narrow band material 5 to rotate and wind to form a double spiral shape and mutually clamp into a disc shape; cut off after winding , Can be prepared with a spiral skeleton anti-impact core composite solder cake.

PUM

PropertyMeasurementUnit
Thickness0.1 ~ 3.0m

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

Similar technology patents

Automatic turnover device for crane supporting leg

PendingCN114314386Asave spaceEasy to pack and ship
Owner:泰安古河随车起重机有限公司

Electronic display screen bracket and using method

PendingCN111076034AEasy to pack and ship
Owner:嘉兴辉鸿五金股份有限公司

Indoor air filtering purifying device

InactiveCN108837693AEasy to protectEasy to pack and ship
Owner:CHENGDU FUYANG TECH DEV

Assembly type bioreactor

InactiveCN109652301AEasy to pack and ship
Owner:上海量能生物科技有限公司

A kind of concealable base and its TV set

ActiveCN105570628BAvoid repeated installation and storageEasy to pack and ship
Owner:SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD

Classification and recommendation of technical efficacy words

  • Easy to pack and ship

Feeding compaction assembly of mushroom seed packing machine

ActiveCN104441739AEasy to pack and shipGood guiding effect
Owner:ZHEJIANG HONGYE EQUIP TECH

Quick-adjusting pedal vehicle for old people

InactiveCN103754302AEasy to pack and ship
Owner:徐奇凡

Chilled meat pressing plate forming machine

InactiveCN107183134Aregular shapeEasy to pack and ship
Owner:JIANGSU HAIDA FOOD

Coating additive and preparation method and using method thereof

InactiveCN109434013Aeasy to produceEasy to pack and ship
Owner:SHANGHAI ZONGHUA IND

Nanosilicon dioxide modified paste type releasing agent for valve casting

InactiveCN105014005AEasy to pack and shipeasy to use
Owner:HEXIAN KEJIA VALVE CASTING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products