A kind of copper clad iron powder and preparation method thereof
A technology of copper-clad iron and iron powder, applied in transportation and packaging, metal processing equipment, coating and other directions, can solve problems such as environmental pollution, and achieve the effects of excellent performance indicators, good fluidity and reasonable particle size distribution
Active Publication Date: 2022-02-22
四川容克斯科技有限公司
View PDF13 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
For example, one of the objectives of the present invention is to provide a copper-coated iron powder and a preparation method thereof, so as to solve the environmental pollution problem of the prior art and improve the product quality of the copper-coated iron composite powder
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
preparation example Construction
[0028] One aspect of the present invention provides a method for preparing copper-clad iron powder.
[0029] figure 1 It shows the comparison schematic diagram of the copper-clad iron powder preparation method of the present invention and the existing reduction method, wherein, (a) diagram shows the schematic diagram of the copper-clad iron powder prepared by the common reduction method, and the product prepared by this method has copper powder Can not fully coat the problem of iron particles; (b) figure shows the schematic diagram of the reduction method of the present invention to prepare copper-clad iron powder, the metal copper of the present invention can be completely coated on the iron powder particle surface, and is made of metal copper The coating layer is uniform and dense.
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
| Property | Measurement | Unit |
|---|---|---|
| particle size | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
Login to View More
Abstract
The invention provides a copper-coated iron powder and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing copper oxide powder and iron powder to obtain mixed material powder; in a protective atmosphere composed of reducing gas, heating the mixed material powder to T 1 and keep warm, then warm up to T 2 And heat preservation, continue to heat up to T 3 and heat preservation, then cooled to below 40°C to obtain a cooled product, wherein, 250≤T 1 <600℃, 600≤T 2 <690℃, 690≤T 3 <820°C; crush and screen the cooled product to obtain copper-clad iron powder. The copper-clad iron powder includes products prepared by the above method. The beneficial effects of the present invention include: the preparation method is simple, and the process has no pollution discharge; the performance indicators of the copper-clad iron powder are excellent, the particle size distribution is reasonable and easy to control, the powder body has good fluidity, strong oxidation resistance, and the sintered product shrinks The coefficient is small.
Description
technical field [0001] The invention relates to the field of preparation of composite metal powder, in particular to a composite powder of metal copper-coated iron and a preparation method thereof. Background technique [0002] Metal powder is the main raw material for manufacturing powder metallurgy mechanical parts and oil-impregnated bearings. The existing technology has developed from single value pure metal powder to coated powder and alloy powder. Copper alloy powder is generally used as raw material in the manufacture of small and micro oil bearings at home and abroad. Due to the improvement of oil bearing performance requirements and the need to reduce production costs, oil bearing manufacturers have widely used metal copper-coated iron composite powder as the main raw material. Substitute copper alloy powder to produce oil-impregnated bearings. [0003] The CN1241250A patent of Japan Paulad Corporation discloses a method for preparing composite metal powder for sin...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/22B22F1/17
CPCB22F9/22B22F1/17
Inventor 何安西杨倩
Owner 四川容克斯科技有限公司