Preparation method for copper-tin-nickel-bismuth alloy powder used for producing thermometal bearing bush material

A bimetallic shaft and alloy powder technology, which is applied in the field of preparation of copper-tin-nickel-bismuth alloy powder, can solve the problems of lead toxicity and hazards, and achieve the effects of good density, improved jacquard rate, and high energy

Active Publication Date: 2016-12-07
浙江旭德新材料有限公司
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, lead is a toxic heavy metal, and lead pollut...

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method for copper-tin-nickel-bismuth alloy powder used for producing thermometal bearing bush material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 as shown, figure 1 It is a flowchart of a method for preparing copper-tin-nickel-bismuth alloy powder for producing bimetallic bearing materials according to an embodiment of the present invention.

[0026] A kind of preparation method of the copper-tin-nickel-bismuth alloy powder that is used to produce bimetal bearing material of this embodiment, alloy powder comprises two kinds of grades of CuSn8Ni1Bi4 and CuSn8Ni1Bi6, comprises the following steps,

[0027] S10, select the raw material that is 83% copper by weight, 9% tin, 1% nickel, 7% bismuth, put Cu into the smelting furnace and heat to 1090°C in the atmosphere to melt, and then melt the copper after melting. Add Sn, Ni and Bi for melting to form alloy liquid, the melting temperature is 1100°C, and the melting time is 15 minutes; when the Sn content is less than 10%, the increase of Sn content is beneficial to improve the strength of the final product;

[0028] S20, after removing slag from the...

Embodiment 2

[0034] Such as figure 1 as shown, figure 1 It is a flowchart of a method for preparing copper-tin-nickel-bismuth alloy powder for producing bimetallic bearing materials according to an embodiment of the present invention.

[0035] A kind of preparation method of the copper-tin-nickel-bismuth alloy powder that is used to produce bimetallic bearing material of the present embodiment comprises the following steps,

[0036] S10, select the raw material of 89% copper, 7% tin, 1% nickel, and 3% bismuth by weight, add Cu to the smelting furnace and heat it to 1083°C in the atmosphere for melting, and then melt it after the copper is melted Add Sn, Ni and Bi for melting to form alloy liquid, the melting temperature is 1120°C, and the melting time is 25 minutes; when the Sn content is less than 10%, the increase of Sn content is beneficial to improve the strength of the final product;

[0037] S20, after removing slag from the liquid surface, the composition detection of the alloy li...

Embodiment 3

[0043] Such as figure 1 as shown, figure 1 It is a flowchart of a method for preparing copper-tin-nickel-bismuth alloy powder for producing bimetallic bearing materials according to an embodiment of the present invention.

[0044] A kind of preparation method of the copper-tin-nickel-bismuth alloy powder that is used to produce bimetallic bearing material of the present embodiment comprises the following steps,

[0045]S10, select the raw materials of 86% copper, 8% tin, 1.5% nickel, and 4.5% bismuth by weight, add Cu to the smelting furnace and heat it to 1085°C in the atmosphere for melting, and then melt it after the copper is melted Add Sn, Ni and Bi for melting to form alloy liquid, the melting temperature is 1110°C, and the melting time is 20 minutes; when the Sn content is less than 10%, the increase of Sn content is beneficial to improve the strength of the final product;

[0046] S20, after removing slag from the liquid surface, the composition detection of the allo...

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 belongs to the technical field of alloy power preparation and particularly relates to a preparation method for copper-tin-nickel-bismuth alloy powder used for producing a thermometal bearing bush material. The preparation method comprises the following steps that by weight, 83%-89% of copper, 7%-9% of tin, 1%-2% of nickel and 3%-7% of bismuth are selected and used, Cu is added into a smelting furnace and is heated to 1083-1090 DEG C in the air atmosphere; Sn is added after Cu is molten, Ni and Bi are smelted to form alloy liquid, the smelting temperature is 1100-1120 DEG C, and the smelting time is 15-25 minutes; the temperature is increased to 1150-1250 DG C; slag is fished out, atomization is conducted through a limited type circular seam nozzle under air at the air pressure being 0.7-1 Mpa, and the alloy liquid forms alloy powder; and the -140 meshes alloy powder is prepared through an eddy-vibrating screen. According to the preparation method, the alloy powder prepared through a melting-gas atomization method can meet the requirement of an antifriction coating material in an engine sliding bearing.

Description

technical field [0001] The invention belongs to the technical field of alloy powder preparation, and in particular relates to a preparation method of copper-tin-nickel-bismuth alloy powder used for producing bimetallic bearing bush materials. Background technique [0002] Copper-lead anti-friction material not only has good anti-friction performance and good anti-seizure performance, but also has high strength and wear resistance, which can better meet the requirements of modern engine bearings. Existing bronze-based self-lubricating materials for automobile bearings often contain a large amount of lead, such as CuPb10Sn10, CuPb24Sn, CuPb24Sn4 and so on. But lead is a poisonous heavy metal, and lead pollution brings great harm to human body and environment. Developed countries have introduced many related regulations, such as the EU Rosh Directive, restricting and prohibiting the use of lead-containing materials. With the development trend of environmental protection, lead...

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): C22C9/02C22C1/02B22F9/08
CPCB22F9/082B22F2009/0824B22F2009/088B22F2999/00C22C1/02C22C9/02B22F2201/50
Inventor 吴棕洋罗涛张伟民张文革
Owner 浙江旭德新材料有限公司
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap