Method for thermoelectric dip plating of machine tool component

A technology for parts and machine tools, which is applied in the field of hot-dip plating of machine tool parts, can solve the problems of insufficient bonding, insufficient coating, and processing technology that cannot meet the needs of machine tools, so as to achieve good fluidity and avoid fragile layers.

Inactive Publication Date: 2016-11-09
BENGBU JINGKE MACHINE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are many problems in the general coating of a single metal, such as not dense enough, not tightly combined, etc., and the general treatment process cannot meet the requirements of the machine tool itself.

Method used

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Examples

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Effect test

specific Embodiment 1

[0012] A method for thermoelectric dip-plating of machine tool parts, the composition is taken by mass percentage: 65% zinc, 30% aluminum, 3% silicon, 2% nickel, and its specific dip-plating steps are:

[0013] (1) Rinse the machine tool parts with clean water for 3 times first, then soak them in boric acid for 5 minutes, rinse them with clean water once more, place them in a dryer for 30 minutes at 200°C, and then cool them down naturally;

[0014] (2) Put the machine tool parts processed in step (1) into a heating furnace for oxidative carbon removal at 400°C, then cool naturally, and then place them in a reduction furnace for residue removal at 800°C;

[0015] (3) Melt zinc, aluminum, silicon, and nickel into the plating pool in sequence. After 30 minutes of complete melting, immerse the machine tool parts treated in step (2) and protected by the reducing atmosphere into the plating pool, and turn on the power to carry out After 40 minutes of thermoelectric dipping, the mac...

specific Embodiment 2

[0016] A method for thermoelectric dip-plating of machine tool parts, the composition is taken by mass percentage: 70% zinc, 25% aluminum, 3% silicon, 2% nickel, and its specific dip-plating steps are:

[0017] (1) Rinse the machine tool parts with clean water for 5 times, then soak them in boric acid for 7 minutes, rinse them with clean water for 3 times, place them in a dryer at 240°C for 40 minutes, and then cool them down naturally;

[0018] (2) Put the machine tool parts processed in step (1) into a heating furnace for oxidative decarburization at 500°C, then cool naturally, and then place them in a reduction furnace at 900°C for residue removal;

[0019] (3) Melt zinc, aluminum, silicon, and nickel into the plating pool in sequence. After 40 minutes of complete melting, immerse the machine tool parts treated in step (2) and protected by the reducing atmosphere into the plating pool, and turn on the power to carry out After 50 minutes of thermoelectric dipping, the dip-co...

specific Embodiment 3

[0020] A method for thermoelectric dip-plating of machine tool parts, the composition is taken by mass percentage: 68% zinc, 28% aluminum, 3.8% silicon, 0.2% nickel, and its specific dip-plating steps are:

[0021] (1) Rinse the machine tool parts with clean water for 4 times, then soak them in boric acid for 6 minutes, rinse them with clean water for 2 times, place them in a dryer for 35 minutes at 220°C, and then cool them down naturally;

[0022] (2) Put the machine tool parts processed in step (1) into a heating furnace for oxidative decarburization at 450°C, then cool naturally, and then place them in a reduction furnace at 850°C for residue removal;

[0023] (3) Melt zinc, aluminum, silicon, and nickel into the plating pool in order. After 35 minutes of complete melting, immerse the machine tool parts treated in step (2) and protected by the reducing atmosphere into the plating pool, and turn on the power to carry out After 45 minutes of hot electric dipping, the machine...

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PUM

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Abstract

The invention discloses a method for thermoelectric dip plating of a machine tool component. By mass percent, 65%-70% of zinc, 25%-30% of aluminum, 3%-5% of silicon and 0.2%-2% of nickel are weighed. The method comprises the specific dip plating steps that firstly, after being washed through clean water, the machine tool component is immersed through boric acid and then washed through the clean water again, and the machine tool component is naturally cooled after being placed in a drying machine to be dried; secondly, the machine tool component is placed in a heating furnace to be subjected to oxidation carbon removing, and after being naturally cooled, the machine tool component is placed in a reduction furnace to be subjected to residue removing treatment; and thirdly, the zinc, the aluminum, the silicon and the nickel are melted in a plating pond in sequence, and after the zinc, the aluminum, the silicon and the nickel are completely melted, the machine tool component treated in the second step and protected by the reducing atmosphere is immersed in the plating pond, and after a power source is started for conducting thermoelectric dip plating, the machine tool component obtained after dip plating is fed into a cooling furnace with the reducing atmosphere to be cooled. The method has the beneficial effects that a plating layer has density and combining tightness; the silicon is further added, and occurrence of a fragile layer during plating layer growth is avoided; and due to adding of the nickel, fluidity of a plating solution is better, and the plating solution is more uniform.

Description

technical field [0001] The invention relates to the technical field of immersion plating, in particular to a method for thermoelectric immersion plating of machine tool components. Background technique [0002] The materials used to manufacture machine tools are mainly various steel materials. During the long-term use of steel materials, they are susceptible to continuous erosion by water vapor and acidic atmosphere in the environment, which seriously affects the working efficiency and precision of the machine tool itself. Therefore, a layer of protective layer should be covered on the outer layer of some machine tool components. The protective layer is usually composed of a corrosion-resistant and wear-resistant metal layer, and the covering method is usually hot-dip plating, electroplating, etc. [0003] However, there are many problems in the general coating of a single metal, such as not dense enough, not tightly combined, etc., and the general treatment process cannot m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C2/06C23C2/02
CPCC23C2/06C23C2/02
Inventor 程绍华程康永
Owner BENGBU JINGKE MACHINE MFG CO LTD
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