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Preparation of 1cr18ni9 stainless steel surface coating with w powder, cu powder and bni2 powder and its preparation method

A 1cr18ni9, surface coating technology, applied in the field of composite materials, can solve problems such as the inability to form a surface protection layer

Active Publication Date: 2021-04-30
JIANGSU YANGMING SHIP EQUIP MFG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the oxidation loss of stainless steel at high temperature is very serious, even if the chromium content reaches 26%, it still cannot form a surface protective layer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Coating raw materials include the following raw materials: 33% W powder, 33% Cu powder, 31% BNi2 powder and 3% silicone resin binder. The silicone resin binder includes the following raw materials: 42% polytetrafluoroethylene, 24% resorcinol, 6% polyethyleneimine, 20% talcum powder, 6% methyltrimethoxysilane, and 2% curing agent.

[0019] The preparation method of coating comprises the steps:

[0020] (1) take W powder, Cu powder, BNi powder by mass percentage, and mix it;

[0021] (2) Put the mixture into an automatic stirring equipment container, and add a silicone resin binder, then close the container, and stir to obtain a uniform mixture;

[0022] (3) Roll the mixed metal powder particles obtained in step (2) on the automatic roll equipment. First, adjust the distance between the roll and the workbench, control the thickness of the bonding cloth at about 3.0-5.0 mm, and perform preliminary roll forming for 30 minutes. ;

[0023] (4) Roll the adhesive cloth again...

Embodiment 2

[0030] Coating raw materials include the following raw materials: 25% W powder, 25% Cu powder, 45% BNi2 powder and 5% silicone resin binder. The silicone resin binder includes the following raw materials: 50% polytetrafluoroethylene, 18% resorcinol, 8% polyethyleneimine, 12% talcum powder, 8% methyltrimethoxysilane, and 4% curing agent.

[0031] The preparation method of coating comprises the steps:

[0032] (1) take by mass percentage, W powder, Cu powder, BNi powder, and it is mixed;

[0033] (2) Put the mixture into an automatic stirring equipment container, and add a silicone resin binder, then close the container, and stir to obtain a uniform mixture;

[0034] (3) Roll the mixed metal powder particles obtained in step (2) on the automatic roll equipment. First, adjust the distance between the roll and the workbench, control the thickness of the bonding cloth at about 3.0-5.0 mm, and perform preliminary roll forming for 30 minutes. ;

[0035](4) Roll the adhesive cloth ...

Embodiment 3

[0042] Coating raw materials include the following raw materials: 40% W powder, 40% Cu powder, 16% BNi2 powder and 4% silicone resin binder. The silicone resin binder includes the following raw materials: 45% polytetrafluoroethylene, 22% resorcinol, 7% polyethyleneimine, 16% talcum powder, 7% methyltrimethoxysilane, and 3% curing agent.

[0043] The preparation method of coating comprises the steps:

[0044] (1) take W powder, Cu powder, BNi powder by mass percentage, and mix it;

[0045] (2) Put the mixture into an automatic stirring equipment container, and add a silicone resin binder, then close the container, and stir to obtain a uniform mixture;

[0046] (3) Roll the mixed metal powder particles obtained in step (2) on the automatic roll equipment. First, adjust the distance between the roll and the workbench, control the thickness of the bonding cloth at about 3.0-5.0 mm, and perform preliminary roll forming for 30 minutes. ;

[0047] (4) Roll the adhesive cloth again...

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Abstract

The invention discloses a surface coating of 1Cr18Ni9 stainless steel prepared by using W powder, Cu powder and BNi2 powder and a preparation method. The coating comprises the following raw materials according to mass fraction: pure W powder 22-55%, pure Cu powder 20-55% , BNi2 powder 20~55% and silicone resin binder 3~5%. The coating of the present invention is a flexible fibrous technical material, not only the composition is uniform and dense, but also the metal fibers in the coating form a crisscross three-dimensional spider web structure; it is compounded with the matrix material, which not only has excellent matching, melting point, lubricating It can effectively improve the corrosion resistance and oxidation resistance of the surface of the matrix material; at the same time, the metal cloth can be cut into various shapes, and has a strong ability to adapt to the matrix. The spatial position between the substrates can be well controlled; in addition, the preparation method of the coating is simple, safe and environmentally friendly.

Description

technical field [0001] The invention relates to preparing a 1Cr18Ni9 stainless steel surface coating and a preparation method by using W powder, Cu powder and BNi2 powder, belonging to the field of composite materials. Background technique [0002] With the implementation of large projects such as national large aircraft and high-speed railway locomotives, stainless steel will play an increasingly important role in the national economy. Stainless steel is widely used in daily life and chemical production because of its excellent oxidation resistance and corrosion resistance. In actual use, due to the influence of various environmental factors, the service life of stainless steel is often much shorter than expected. This not only causes potential safety hazards, but also causes a great waste of resources and energy due to the replacement of steel in advance. Therefore, how to use and protect stainless steel reasonably, prevent or weaken the corrosion of stainless steel, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F7/04B22F3/18B22F1/00
CPCB22F3/18B22F7/04B22F1/102
Inventor 严铿邹家生王怡付玲玲叶友利施志强高飞黄晓龙许祥平
Owner JIANGSU YANGMING SHIP EQUIP MFG TECH
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