CN103157788A - High manganese and high chromium alloy self-fluxing powder - Google Patents

Abstract

The invention belongs to the metallurgical industry and relates to an alloy powder which is used for improving hardness of metal surface materials, improving corrosion resistant performance and abrasion performance and prolonging service life of equipment, in particular to high manganese and high chromium alloy self-fluxing powder. The high manganese and high chromium alloy self-fluxing powder comprises, by weight, 1% of carbon, 2% of boron, 3.20% of silicon, 17% of chrome, 20% of manganese and the balance ferrum. The high manganese and high chromium alloy self-fluxing powder is applied to equipment of the coal-mining industry and the cement industry in order to greatly improve corrosion resistant performance, abrasion performance and hardness. At the same time, time is saved, production efficiency is improved, and therefore benefits are improved. According to the high manganese and high chromium alloy self-fluxing powder, the original surface hardness of metal materials reaches 42HRC after alloying of high manganese and high chromium, the surface hardness becomes higher and higher and finally reaches 65HRC after pressed. Compared with the abrasion performance of the existing metal materials, the abrasion performance is increased by 20-40 times.

Description

Content and high manganses and chromium content alloy Self-fusing powder

Technical field

The invention belongs to hardness, the raising corrosion-resistant and wearability of metallurgy industry in order to improve metal surface material, the alloy powder that extension device uses is particularly about content and high manganses and chromium content alloy Self-fusing powder.

Background technology

Along with national economy is fast-developing, Coal Industry and cement sectors demand also increase day by day, and construction of coal mine is at large-scale development, the colliery with column demand every year all up to ten thousand left and right, cement plant roll more or less a hundred, so maintenance market is very large.Increasing utilizes our alloy powder cladding and technique for overlaying, repair in process and use alloy powder that manganese, chromium powder end is arranged in the weld deposit process of roll at column, manganese, chromium powder end is flown upward the content that has reduced manganese, chromium and can not be made it reach optimum performance in weld deposit process, for this reason our specialize the welding block of content and high manganses and chromium content alloy Self-fusing powder.

Summary of the invention

The purpose of this invention is to provide a kind of content and high manganses and chromium content alloy Self-fusing powder, it can overcome above deficiency, improves hardness, corrosion and the wearability of metal surface material, the service life of extension device.

For achieving the above object, the technical solution used in the present invention is: a kind of content and high manganses and chromium content alloy Self-fusing powder is provided, it is characterized in that: it is synthetic by the raw material of following percentage by weight; C carbon 1%; B boron 2%; Si silicon 3.20%; Cr chromium 17%; Mn, 20%; Surplus is Fe iron.

Above-mentioned content and high manganses and chromium content alloy Self-fusing powder preparing process process is:

1) C carbon, B boron, Si silicon, Cr chromium, Mn, powder were under-0.08 condition in vacuum respectively, with insulation at the temperature of 120 ± 5 ℃ two hours;

2) iron Fe powder was also under-0.08 condition in vacuum, with insulation at the temperature of 120 ± 5 ℃ two hours;

3) with the C carbon 1% after above-mentioned processing; B boron 2%; Si silicon 3.20%; Cr chromium 17%; Mn, 20%; All the other are weight ratio mixing of iron Fe;

4) with mixed 3) mixed 8-12 hours in the three-dimensional rotation batch mixer;

5) then 4) mixed powder puts ball mill into-24 ℃ to-30 ℃ ball millings 8-10 hours;

6) the iron-based Self-fusing powder after the taking-up ball milling is under-0.08 condition in vacuum, gets final product in two hours with insulation at the temperature of 120 ± 5 ℃.

The present invention compared with prior art, advantage and effect that the present invention has are as follows:

This content and high manganses and chromium content alloy of the present invention Self-fusing powder is that a kind of equipment corrosion that is applied to coal mining and cement sectors, wear-resisting, hardness improve greatly, and also the time of having saved has been improved production efficiency simultaneously, thereby has improved profit.

Technical parameter and performance indications compare:

Hardness: original metal material surface hardness is, 40～45HRC;

The present invention by Gao Meng Gao Chrome metal of alloying material surface initial stage hardness is,＞42HRC;

Wearability: improve 20～40 times than original metal material wearability.

Can reach 65HRC through the more and more higher final hardness of compression stiffness.

The specific embodiment:

Content and high manganses and chromium content alloy Self-fusing powder of the present invention is that a kind of equipment corrosion that is applied to coal mining and cement sectors, wear-resisting, hardness improve greatly, and also the time of having saved has been improved production efficiency simultaneously.

This content and high manganses and chromium content alloy of embodiment Self-fusing powder preparing process process is:

1, C carbon, B boron, Si silicon, Cr chromium, Mn, powder were under-0.08 condition in vacuum respectively, with insulation at the temperature of 120 ± 5 ℃ two hours;

2, iron Fe powder was also under-0.08 condition in vacuum, with insulation at the temperature of 120 ± 5 ℃ two hours;

3, with the C carbon 1% after above-mentioned processing; B boron 2%; Si silicon 3.20%; Cr chromium 17%; Mn, 20%; All the other are weight ratio mixing of iron Fe;

4, mixed 8-12 hours in the three-dimensional rotation batch mixer mixed 3;

5, then mixed 4 powder are put into ball mill-24 ℃ to-30 ℃ ball millings 8-10 hours;

6, the iron-based Self-fusing powder after the taking-up ball milling is under-0.08 condition in vacuum, gets final product in two hours with insulation at the temperature of 120 ± 5 ℃.

Claims (2)

1. content and high manganses and chromium content alloy Self-fusing powder is characterized in that: it is synthetic by the raw material of following percentage by weight; C carbon 1%; B boron 2%; Si silicon 3.20%; Cr chromium 17%; Mn, 20%; Surplus is Fe iron.

2. above-mentioned content and high manganses and chromium content alloy Self-fusing powder preparing process process is:

1) C carbon, B boron, Si silicon, Cr chromium, Mn, powder were under-0.08 condition in vacuum respectively, with insulation at the temperature of 120 ± 5 ℃ two hours;

2) iron Fe powder was also under-0.08 condition in vacuum, with insulation at the temperature of 120 ± 5 ℃ two hours;

3) with the C carbon 1% after above-mentioned processing; B boron 2%; Si silicon 3.20%; Cr chromium 17%; Mn, 20%; All the other are weight ratio mixing of iron Fe;

4) with mixed 3) mixed 8-12 hours in the three-dimensional rotation batch mixer;

5) then 4) mixed powder puts ball mill into-24 ℃ to-30 ℃ ball millings 8-10 hours;

6) the iron-based Self-fusing powder after the taking-up ball milling is under-0.08 condition in vacuum, gets final product in two hours with insulation at the temperature of 120 ± 5 ℃.