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Lightweight rapid granular boriding medium

A boronizing agent, fast technology, applied in the field of boronizing agent, can solve the problem of low surface hardness of steel, achieve the effect of light bulk density, fast boronizing speed, and improved service life

Inactive Publication Date: 2011-05-25
缪建良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a light and rapid granular boronizing agent to solve the problem of low surface hardness of steel after boronizing with common boronizing agents

Method used

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Examples

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Embodiment Construction

[0009] A kind of light fast granular boronizing agent described in the embodiment of the present invention adopts ferric boron (Fe-B) as the boron donor; Potassium fluoroborate (KBF 4 ) and ammonium bicarbonate (NH 4 HCO 3 ) is the infiltration agent, industrial pure alumina (AI 2 o 3 ) is a filler. The proportioning ratio of the boron donor, infiltration agent and filler is 1:1:1. The ratio of potassium fluoroborate and ammonium bicarbonate is 1:1.

[0010] The infiltrating agent has fast boronizing speed, and the structure of the borided layer is basically single-phase Fe. 2 B or (Fe, M) 2 B. The hardness of the borided layer can reach HV1600-2100. The surface of the borided parts is clean, no cleaning is required, and the infiltrating agent is non-toxic and reusable.

[0011] Can reach the advanced level at home and abroad. For example, the service life of the pressure plate of the boronizing sheet machine is 6 times higher than that of the nitrided pressure plate, ...

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PUM

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Abstract

The invention discloses a lightweight rapid granular boriding medium, which adopts ferroboron (Fe-B) as a source of boron, potassium fluoborate (KBF4) and ammonia bicarbonate (NH4HCO3) as energizers, and industrial pure aluminum oxide (Al2O3) as a filler. The boriding medium has the characteristics of high boriding speed, the borided layer structure of substantially single-phase Fe2B or (Fe / M)2B, the hardness of the borided layer of HV1,600 to 2,100, clean borided part surface, no need of washing and boriding medium sterilization, reusability and the like. The boriding medium can reach an advanced level both at home and abroad. For example, a borided knife clip of a splitting machine has the service life which is seven times that of a nitrided knife clip and twice that of a knife clip sprayed with a hard alloy; a baking-free brick mould, a sand brick mould and a refractory brick mould are borided to achieve the service life which is over fourth times that of a carburized mould; fittings, such as oil well pump pipes, couplings, centering devices and the like, of petroleum machinery use the boriding medium so as to achieve resistance to wear and corrosion and greatly prolonged service life; and after being borided, Q235 steel base plates required to be disassembled and replaced after 15 days under the abrasion of a grinding material can be used for more than half a year so as to achieve remarkable economic benefits.

Description

technical field [0001] The invention relates to a boronizing agent. Background technique [0002] Due to the low surface hardness of ordinary steel materials, they will quickly wear out and fail during use, which wastes a lot of steel materials, and requires frequent disassembly and replacement of tooling, resulting in lost work and time. Boronizing can greatly improve the surface hardness of steel, far exceeding the hardness of carburizing, nitriding, chrome plating and other surface layers. The boronizing layer also has high corrosion resistance, which can increase the service life of the workpiece several times or even dozens of times. , with high economic benefits. Boronizing equipment is simple, easy to operate, easy to master, and low in cost. Contents of the invention [0003] The object of the present invention is to provide a light-weight and rapid granular boronizing agent to solve the problem of low surface hardness of steel after boronizing with common boroni...

Claims

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Application Information

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IPC IPC(8): C23C8/70
Inventor 缪建良
Owner 缪建良