Iron bronze composite powder and preparation method thereof

A technology of iron bronze and composite powder, applied in metal material coating process, coating and other directions, can solve the problems of poor internal metal bonding strength, uneven distribution, low compressive strength, etc., to achieve excellent product quality and performance, reduce impurities The effect of content and excellent performance

Active Publication Date: 2007-02-28
CHONGQING YOUYAN ZHONGYE NEW MATERIAL
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The oil-impregnated bearing produced by this raw material formula and process has good compressive strength and certain wear resistance and corrosion resistance, and can be used in some working conditions and occasions with low requirements, but still cannot meet certain requirements At the same time, it has high load, high speed, good wear resistance and good corrosion resistance.
This is mainly because the simple phy

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

Example Embodiment

[0022] Example 1: An iron bronze composite powder whose composition content is shown in Table 1. The preparation method is as follows: first dissolve stannous sulfate and copper sulfate in deionized exchange water at room temperature, then mix, adjust the pH value of the above mixed solution with sulfuric acid to 0.5, and then add excess reduced iron powder under stirring A chemical replacement reaction is performed; wherein the adding amount of the above-mentioned stannous sulfate, copper sulfate and excess reduced iron powder is stannous sulfate: copper sulfate: reduced iron powder=1.8:35.4:100 by weight. After stirring the reaction for 1 minute, the stirring was stopped and the reaction product was allowed to settle for 1 minute. After the clear liquid was removed, the solid reaction product obtained was repeatedly washed with deionized water until the pH value of the washing water was 7, dehydrated and vacuum dried. The drying temperature was 80°C, the drying time is 60 minute...

Example Embodiment

[0023] Example 2: An iron bronze composite powder whose composition content is shown in Table 1. The preparation method is as follows: firstly dissolve copper sulfate and stannous sulfate in deionized exchange water at room temperature, then mix, adjust the pH of the above mixed solution with sulfuric acid to 1.5, and then add excess reduced iron powder under stirring A chemical replacement reaction is performed; wherein the adding amount of the above-mentioned stannous sulfate, copper sulfate and excess reduced iron powder is stannous sulfate: copper sulfate: reduced iron powder=3.7:70.7:100 by weight. After stirring for 2.4 minutes, the stirring was stopped and the reaction product was allowed to settle for 5 minutes. After the clear liquid was removed, the solid reaction product obtained was repeatedly washed with deionized water until the pH value of the washing water was 7, dehydrated and vacuum dried at a drying temperature of 95°C, the drying time is 60 minutes, and finally...

Example Embodiment

[0024]Example 3: An iron bronze composite powder whose composition content is shown in Table 1. The preparation method is as follows: first dissolve copper sulfate and stannous sulfate in deionized exchange water at room temperature, then mix, adjust the pH value of the above mixed solution with sulfuric acid to 2.0, and then add excess reduced iron powder under stirring Chemical replacement reaction is carried out; wherein the adding amount of the above-mentioned stannous sulfate, copper sulfate and excess reduced iron powder is stannous sulfate: copper sulfate: reduced iron powder=3.7:74.6:100 by weight. After stirring for 3.8 minutes, the stirring was stopped and the reaction product was allowed to settle for 5.6 minutes. After removing the clear liquid, the solid reaction product obtained was repeatedly washed with deionized water until the pH value of the washing water was 7, dehydrated and vacuum dried at a drying temperature of 88°C, the drying time is 108 minutes, and fina...

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 the iron bronze composite powder and preparing method. The invention adopts chemical replacement method to form metal powder with bronze coating layer on the iron powder; the tin content is 1-11%, the copper content is 9-49%, and the left is iron, The method has the advantages of saving the cost, and the product has good property and long life. The bruising strength of the product is 28kgf/mm2. The product has not leaded, so the method is not bad for environment and human.

Description

technical field [0001] The invention relates to a metal powder and a preparation method thereof, in particular to an iron-bronze composite powder and a preparation method thereof. Background technique [0002] Powder metallurgy is the process of producing special materials and their products by using metal powder or non-metal powder or their composite powder. It is widely used in various fields of national economy and has broad development prospects. Powder metallurgy products and parts are mainly divided into two categories: iron-based and copper-based. Copper-based powder metallurgy products and parts are products and parts with metal copper or bronze as the main component, which are used in industrial manufacturing fields with special requirements, but due to the high price of raw materials, the application of copper-based powder metallurgy products and parts is limited. In terms of application and development, there is an urgent need to find alternatives with relatively...

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): C22C1/04C23C30/00C22C38/16C22C30/00B22F9/18
Inventor 王绪其孟庆芳黄清福黄一峰曾明军
Owner CHONGQING YOUYAN ZHONGYE NEW MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products