Unlock instant, AI-driven research and patent intelligence for your innovation.

A preparation process of diamond tools based on warm pressing

A diamond tool, warm pressing technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of difficult degreasing, long degreasing time, blank burst, etc., and achieve low temperature creep fluidity and good plasticity, hardness and Improved flexural strength and reduced blank shrinkage

Active Publication Date: 2022-07-08
荣成中磊科技发展有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, powder metallurgy injection molding and extrusion molding need to add a large amount of binder to the matrix alloy powder to prepare the matrix alloy feed, so as to ensure that the fluidity of the matrix alloy feed can meet the requirements of injection molding and extrusion molding Generally, the addition amount (mass percentage) of the binder in the carcass alloy feed is 9 to 15%, and the volume ratio (V 粘结剂 / V 喂料 ) is 60 to 70%. Due to the relatively large amount of binder added, the difficulty of the subsequent degreasing process is increased. The degreasing time is long, the heating rate is high, and the degreasing is difficult. During the degreasing process, the blank is prone to bubbles and internal cracks , the blank will burst in severe cases, which greatly affects the quality of the prepared diamond tools

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
  • A preparation process of diamond tools based on warm pressing
  • A preparation process of diamond tools based on warm pressing
  • A preparation process of diamond tools based on warm pressing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0079] In Examples 1 to 5, each raw material was weighed according to Table 1 and calculated by mass percentage, wherein the metal pre-alloy powder in the matrix alloy powder was composed of 70% Fe and 30% Cu, and the particle size of the metal pre-alloy powder was 1 μm , the particle size of WC powder, Ni powder and Sn powder are all 3μm;

[0080] The particle size of the diamond particles in the matrix alloy powder is 0.3 mm;

[0081] The degree of polymerization of polyethylene glycol is 2000.

[0082] And embodiments 1-5 prepare a kind of diamond tool based on warm pressing according to the following steps:

[0083] Table 1-Diamond tool raw material composition

[0084]

[0085]

[0086] Step A, Preparation of Carcass Alloy Feed

[0087] Step A1, according to Table 1, weigh the carcass alloy powder and the flowing warm-pressed water-based binder into the kneader, heat and knead at 140° C. for 1 hour, and then cool down and cool to obtain a kneading feed;

[0088]...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of preparation of diamond tools, in particular to a preparation process of diamond tools based on warm pressing. A process for preparing a diamond tool based on warm pressing, comprising the following steps: Step A, heating and kneading matrix alloy powder and a flowing warm-pressed water-based binder, and then granulating to obtain matrix alloy feed; Step B Step C, performing dipping, degreasing and drying treatment on the carcass alloy blank. The object of the present invention is to propose a process for preparing a diamond tool based on warm pressing. The obtained diamond tool has a small sintered blank shrinkage, high dimensional accuracy, high density, improved flexural strength and hardness, and the finished product It has a high rate and can make diamond tools of large size and complex shape.

Description

technical field [0001] The invention relates to the technical field of preparation of diamond tools, in particular to a preparation process of diamond tools based on warm pressing. Background technique [0002] The traditional diamond tool manufacturing process mainly adopts the hot-pressing sintering molding process. First, the matrix alloy powder is pre-pressed in a cold press to form a matrix alloy blank, and then the matrix alloy blank is loaded into a graphite mold for hot pressing. Heating and pressure sintering is carried out in a sintering furnace. This method can only produce diamond tools with a simple cross-sectional shape, and the sintering furnace usually requires repeated heating and cooling for many times. The production cost is high and the quality is unstable. At present, diamond tools have been produced by powder metallurgy injection molding and extrusion molding, which can produce products with complex geometric shapes. However, powder metallurgy injecti...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B22F5/00B22F1/10B22F3/02B22F3/10B22F9/04C22C30/02C22C30/04C22C26/00C22C38/08C22C38/12C22C38/16
CPCB22F5/00B22F3/02B22F3/1021B22F3/1007B22F9/04C22C30/02C22C30/04C22C26/00C22C38/16C22C38/12C22C38/08C22C38/008B22F1/10
Inventor 高忠麟舒诚
Owner 荣成中磊科技发展有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com