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Tungsten alloy composite plating coat material and manufacturing method thereof

A composite coating and manufacturing method technology, applied in metal material coating process, coating, etc., to achieve excellent abnormal temperature and high temperature hardness and wear resistance, excellent corrosion resistance, and excellent corrosion resistance

Inactive Publication Date: 2008-07-02
CHENGDU SHENJIA MACHINERY MFG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] So far, there are no literature reports and related patent applications on tungsten alloy composite coatings at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: Composite electroplating of W-Co / diamond composite coating on the workpiece surface by means of current-controlled direct current electroplating

[0028] Bath composition: Na 2 WO 4 .2H 2 O 50g / L

[0029] CoSO4.7H 2 O 300g / L

[0030] (NH4) 2 SO 4 80g / L

[0031] Ammonium thiocyanate 20g / L

[0032] Lauric acid diethylamide 5g / L

[0033] Ethylenediamine 35g / L

[0034] PEG 30~100ppm

[0035] Diamond nanoparticles (average particle size d=3nm) 1g / L

[0036] Prepare the composite plating solution according to the composition of the above composite plating solution. The workpiece undergoes composite electroplating after a series of pretreatment processes such as degreasing, strong etching, and weak erosion. Electroplating is carried out by means of DC composite plating with current control. The current density is controlled at 50mA / cm 2 , the temperature of the...

Embodiment 2

[0038] Example 2: Composite electroplating of W-Ni-SiC-MoO on the surface of the workpiece by means of current-controlled single-phase pulse composite plating 2 Composite coating

[0039] The composition of the composite plating solution is: Na 2 WO 4 .2H 2 O 150g / L

[0040] NiSO 4 .7H 2 O 80g / L

[0041] h 3 BO 3 50g / L

[0042] Sodium Lauryl Sulfate 0.1g / L

[0043] C6H807.H 2 O 52g / L

[0044] KNaC4H406.4H 2 O 35g / L

[0045] SiC (average particle size 1.2μm) 150g / L

[0046] SiO 2 (average particle size 2nm) 25g / L

[0047] MoS 2 (average particle size 5μm) 15g / L

[0048] Prepare the composite plating solution according to the composition of the above composite plating solution. The workpiece undergoes composite electroplating after a series of pretreatment processes such as degreasing, strong etching, and weak erosio...

Embodiment 3

[0050] Example 3: Composite electroplating W-P-Ni / Al by means of voltage control 2 o 3 Composite coating

[0051] Composite bath composition: Na 2 WO 4 .2H 2 O 20g / L

[0052] NiCl 2 ·7H 2 O 130g / L

[0053] Phosphorous acid 15g / L

[0054] Boric acid 10g / L

[0055] Glycine 6g / L

[0056] NH 4 Cl 20g / L

[0057] Sodium pyrophosphate 5g / L

[0058] Mg 2 SO 4 18g / L

[0059] Ammonium citrate 30g / L

[0060] Trimethyldodecylammonium Chloride 5g / L

[0061] Al 2 o 3 Nanoparticles (average particle diameter d=60nm) 200g / L

[0062] Prepare the composite plating solution according to the composition of the above composite plating solution. The workpiece is subjected to composite electroplating after a series of pretreatments such as degreasing, strong etching, and weak erosion. Composite electroplating i...

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Abstract

The invention relates to a tungsten alloy composite coating material and a manufacture method. The tungsten alloy composite coating material is a multi-phase composite structure material composed of a tungsten alloy and a large number of particles or fibers dispersed in the tungsten alloy. The tungsten alloy composite coating contains tungsten of 5 to 98wt% and particles or fibers of 0.05 to 80wt%, and the diameter of the particle or the fiber is 3nm to 5 micrometer. The coating has low internal stress, excellent normal-temperature and high-temperature hardness and abrasion resistance, excellent high-temperature oxidization resistance and excellent corrosion resistance. The tungsten alloy composite coating has important use in machinery industry, chemical and medicine industry, metallurgy industry, aerospace industry, weapons and ammunitions, petroleum exploitation, mining industry, electronic industry, etc, and is particularly suitable for the occasions with high-temperature strength and high corrosion resistance.

Description

technical field [0001] The invention belongs to the field of surface technology, in particular to a tungsten alloy composite coating material and a manufacturing method. Background technique [0002] So far, there are no literature reports and related patent applications on tungsten alloy composite coating at home and abroad. The biggest feature of tungsten alloy composite coating lies in its excellent mechanical properties (especially mechanical properties under high temperature conditions), high temperature oxidation resistance and corrosion resistance. The tungsten alloy composite coating prepared by the composite plating technology has important uses in the machinery industry, chemical and pharmaceutical industries, metallurgical industry, aerospace, weapons and ammunition, oil exploration, mining industry, electronics industry, etc., especially suitable for applications that require high temperature strength and high In case of corrosion resistance. Contents of the i...

Claims

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Application Information

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IPC IPC(8): C22C49/00C22C49/10C22C49/14C23C30/00C25D3/02C25D5/00
Inventor 王为易敏
Owner CHENGDU SHENJIA MACHINERY MFG
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