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Novel aluminum alloy welding wire preparation method

An aluminum alloy welding wire and a new type of technology, applied in the field of aluminum alloys, can solve the problems of poor fatigue resistance, poor wear resistance, and low surface hardness of aluminum alloy welding wires, and achieve improved surface hardness, smoothness and wear resistance. Effects of uniformity and performance uniformity

Inactive Publication Date: 2016-07-20
NO 52 INST OF CHINA NORTH IND GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: In view of the deficiencies of the existing technology, provide a new preparation method of aluminum alloy welding wire, through a complete process chain, solve the problems of low surface hardness, poor wear resistance and poor fatigue resistance of aluminum alloy welding wire

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Processing technology of 1φ1.6mm5356 aluminum alloy plate-mounted welding wire

[0015] 1.1 First use the cold rolling machine to cold-roll the φ9.5mm aluminum alloy wire rod, and roll it to φ5.2mm at one time;

[0016] 1.2 After cold rolling, draw the φ5.2mm aluminum alloy wire to 3.5mm;

[0017] 1.3 Use a grinding machine for descaling treatment;

[0018] 1.4 After descaling treatment, the semi-finished product passes through the online surface mechanical grinding treatment device. The projectile material used is stainless steel, the projectile diameter is 8mm, the impact speed is 4m / s, the impact frequency is 1KHz, the action time is 16min, and the treatment atmosphere is vacuum;

[0019] 1.5 After the treatment, the welding wire passes through 7 polycrystalline diamond molds to draw the finished water tank;

[0020] 1.6 After drawing, the welding wire undergoes ultrasonic cleaning, drying and layer winding.

[0021] 2 result evaluation:

[0022] The surface laye...

Embodiment 2

[0024] Processing technology of 1φ1.2mm5356 aluminum alloy plate-mounted welding wire

[0025] 1.1 First use the cold rolling machine to cold-roll the φ9.5mm aluminum alloy wire rod, and roll it to φ5.2mm at one time;

[0026] 1.2 After cold rolling, draw the φ5.2mm aluminum alloy wire to 2.4mm;

[0027] 1.3 Use a grinding machine for descaling treatment;

[0028] 1.4 After the descaling treatment, the semi-finished product passes through the online surface mechanical grinding treatment device. The projectile material used is stainless steel, the projectile diameter is 6mm, the impact speed is 6m / s, the impact frequency is 1KHz, the action time is 20min, and the treatment atmosphere is vacuum;

[0029] 1.5 After the treatment, the welding wire passes through 7 polycrystalline diamond molds to draw the finished water tank;

[0030] 1.6 After drawing, the welding wire undergoes ultrasonic cleaning, drying and layer winding.

[0031] 2 result evaluation:

[0032] The surface ...

Embodiment 3

[0035] Processing Technology of 1φ2.4mm4043 Aluminum Alloy Straight Bar Welding Wire

[0036] 1.1 First use the cold rolling machine to cold-roll the φ9.5mm aluminum alloy wire rod, and roll it to φ5.2mm at one time;

[0037] 1.2 After cold rolling, draw the φ5.2mm aluminum alloy wire to 4.5mm;

[0038] 1.3 Use a grinding machine for descaling treatment;

[0039] 1.4 After descaling treatment, the semi-finished product passes through the online surface mechanical grinding treatment device. The projectile material used is ceramics, the diameter of the projectile is 10mm, the impact speed is 3m / s, the impact frequency is 500Hz, the action time is 30min, and the treatment atmosphere is vacuum;

[0040] 1.5 After the treatment, the welding wire passes through 5 polycrystalline diamond molds to draw the finished water tank;

[0041] 1.6 After drawing, the welding wire is ultrasonically cleaned, dried and cut off.

[0042] 2 result evaluation:

[0043] The surface layer of weldi...

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Abstract

The invention discloses a novel aluminum alloy welding wire preparation method. The method comprises the following steps: cold-rolling; drawing; oxide skin removal treatment; on-line surface mechanical grinding treatment; finished-product water tank drawing; ultrasonic wave cleaning; drying; and winding. In the oxide skin removal treatment step, the removal thickness is below 0.05mm. In the on-line surface mechanical grinding treatment step, the diameter of a projectile is 1mm-15mm, the impact speed is 1m / s-20m / s, the impact frequency is 50Hz-22KHz, the action time is 20-120 min, the material of the projectile is stainless steel, or GCr15, or glass or ceramic, and the on-line surface mechanical grinding treatment is carried out in vacuum, or in argon, or in nitrogen or in ammonia; 4-11 molds are adopted in the finished-product water tank drawing step. Oxide skin can be effectively removed, the material loss is reduced, the rate of finished products is increased, the surface roughness and the wear resistance of a welding wire are effectively increased, and the problem of poor surface wearability of current domestic aluminum alloy welding wires is solved.

Description

technical field [0001] The invention belongs to aluminum alloy technology, in particular to a method for preparing a novel aluminum alloy welding wire. Background technique [0002] At present, the aluminum alloy welding wires produced in China generally have defects such as low surface hardness, poor wear resistance, and poor fatigue resistance. Due to the low surface hardness of the welding wire during use, the wire feeding distance during the welding process is generally less than 3 meters, and it is impossible to realize long-distance, climbing and serpentine wire feeding. Due to the poor wear resistance of the welding wire surface, the contact between the wire and the wire and the contact between the wire and the equipment during the production process will easily cause friction and wear on the surface of the welding wire, resulting in white stubble and uneven color on the surface of the welding wire. , The friction between the surface of the welding wire and the inner...

Claims

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Application Information

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IPC IPC(8): B23K35/40B23K103/10
CPCB23K35/40B23K2103/10
Inventor 王东刘春兰张登峰李鹏乔波高世鹰邬富宝郑宏伟张世全
Owner NO 52 INST OF CHINA NORTH IND GRP CORP
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