Powder metallurgy brass bearing retainer and preparation process thereof
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A technology of brass bearings and powder metallurgy, which is applied in the zero-processing field of bearings, can solve the problems of poor surface lubricant wettability, wear, and low oil content, and achieve the effects of removing surface burrs, low noise, and high oil content
Pending Publication Date: 2021-12-07
枣庄市鲁州粉末冶金制品有限公司
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[0002] Bearing parts are generally made by forging or lathing, but because high-carbon chromium steel is used as the raw material, the material itself is dense, which leads to low oil content and poor wettability of surface lubricants during use, resulting in serious wear and tear. , Reduced iron powder is a kind of gray or black powder mainly containing elemental iron, also known as "double absorber". Mix other metal powders to make bearing parts by pressing and sintering forming process
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[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0035] Such as figure 1 shown;
[0036] A powder metallurgy brass bearing retainer, the powder metallurgy brass bearing retainer is made of the following raw materials:
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Abstract
The invention belongs to the technical field of bearing zero machining, and particularly relates to a powder metallurgy brass bearing retainer and a preparation process thereof. The powder metallurgy brass bearing retainer is prepared from the following raw materials: 70-73% of iron powder, 0.7-1.0% of carbon, 20-25% of copper powder, 2.5-3% of nickel powder and 0.6-0.8% of a lubricant. The powder metallurgy brass bearing retainer is made of iron, copper, nickel and carbon, due to the fact that the copper, the nickel and the carbon are added, the powder metallurgy brass bearing retainer has the characteristics of being compact in hole, high in oil content, large in bearing capacity, low in noise and the like, the machining efficiency of the brass bearing retainer can be effectively improved through the brand new machining technology, and meanwhile, a vibration grinding machine is adopted for grinding and deburring, on one hand, burrs on the surfaces of parts can be effectively removed, meanwhile, the internal stress of the parts can be eliminated in the vibration collision process, meanwhile, anti-rust oil is added in the vibration grinding process, the anti-rust technology for the parts is simplified, and follow-up packaging is facilitated.
Description
technical field [0001] The invention belongs to the technical field of bearing zero processing, and in particular relates to a powder metallurgy brass bearing retainer and a preparation process thereof. Background technique [0002] Bearing parts are generally made by forging or lathing, but because high-carbon chromium steel is used as the raw material, the material itself is dense, which leads to low oil content and poor wettability of surface lubricants during use, resulting in serious wear and tear. , Reduced iron powder is a kind of gray or black powder mainly containing elemental iron, also known as "double absorber". Mix other metal powders to make bearing parts by pressing and sintering forming process. [0003] For this reason, a powder metallurgy brass bearing retainer and its preparation process are designed to solve the above problems. Contents of the invention [0004] In order to solve the problems raised in the above-mentioned background technology. The i...
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