Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Carbon steel boriding medium and preparation method thereof

A technology of boronizing agent and carbon steel, which is applied in coating, metal material coating process, solid-state diffusion coating, etc., can solve the problems of high cost of boronizing agent, peeling of surface boronizing layer, obvious boundary, etc. The effect of improving the boronizing effect and reducing the amount of use

Inactive Publication Date: 2013-04-03
姚芙蓉
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The boronizing layer of the boriding agent used in the current technology is shallow, the maximum is not more than 0.15mm, and the boundary between the boronizing layer and the substrate is obvious, which easily leads to the peeling of the boronizing layer on the surface
On the other hand, the currently used boronizing agents use precious metals and rare earth metals, resulting in high cost of boronizing agents

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Described preparation method is:

[0015] Ingredients, by weight percentage, 25% borax, 8% sodium fluoroborate, 22% clay, 7% urea, 6% ferrosilicon, 4% ammonium bicarbonate, 1.0% aluminum, 0.002% Titanium dioxide, 0.3% rare earth fluoride and the rest of graphite and charcoal; the weight ratio of graphite and charcoal is 1:1 for batching;

[0016] The above-mentioned materials are ground into powder through a mill, and powder materials can also be used;

[0017] Mix the above materials with a mixer, add 25% water of the total weight while mixing, and then process them into particles with an average particle size of 3-4 mm with a granulator, and dry them in an oven at 150°C after natural drying Dry to make boronizing agent.

[0018] The method of use is,

[0019] Put the boronizing agent into the boronizing box and preheat it to 130-150°C, and bury it into the workpiece to be treated. 880±30°C heat preservation for 6-10 hours, after quenching in the furnace or quenchi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a carbon steel boriding medium and a preparation method thereof. The carbon steel boriding medium is composed of the following materials in percentage by weight: 25% of borax, 8% of sodium fluoroborate, 22% of clay, 7% of urea, 6% of ferrosilicon, 4% of ammonium bicarbonate, 1.0% of alumium, 0.002% of titanium dioxide, 0.3% of rare earth fluoride and the balance of graphite and charcoal by weight percentage. According to the technical proposal provided by the invention, the dosage of the rare earth is reduced and the boriding effect is improved.

Description

technical field [0001] The invention belongs to the field of alloy steel heat treatment, in particular to a carbon steel boronizing agent and a preparation method. Background technique [0002] For some metal workpieces, in order to improve their performance, it is necessary to carry out chemical heat treatment on metal workpieces, especially for some workpieces that require high surface hardness, wear resistance, and impact resistance, boronizing treatment is generally used to utilize boron. It can increase the wear resistance of the alloy, where a boronizing agent is required. [0003] The boronizing agent used in the current technology has a shallow boronizing layer, the maximum of which is not more than 0.15 mm, and the boundary between the boronizing layer and the substrate is obvious, which easily leads to peeling off of the boronizing layer on the surface. On the other hand, currently used boronizing agents use noble metals and rare earth metals, resulting in high co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C23C8/70
Inventor 姚芙蓉
Owner 姚芙蓉
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com