Method for uniform distribution of greasing substance on solid surface, apparatus and application thereof

Abstract

The invention supplies a method which is used to make the lubricating substance be uniformly distributed at the surface of the solid. It includes the following steps that firstly the lubricating substance is transformed to the gaseous state by physical mode to form gaseous state lubricating substance environment. Then the surface of the solid which needs to lubricate is set in the environment to make the gaseous state lubricating substance be coagulated at it. An installation which can realize the above method is that it includes powder lifting gearing, operating room, lubricating substance boil-off component. The powder lifting gearing is set in the outside or inner of the operating room; the lubricating substance boil-off component is connected to the under part of the operating room by pipeline. The invention can be used in the lubricating process of the powder solid surface or powder compacting tool set wall. It can form uniform thin lubricating layer at the surface of the solid and control its thickness, effectively utilize the lubricant. Its advantages are that the operation process is simple; the cost is low; it suits to volume produce, and is easy to popularize.

Description

technical field [0001] The invention relates to a solid surface lubrication technology, in particular to a method for uniform lubrication of a solid surface, a device and an application thereof. Background technique [0002] When using a liquid lubricant to lubricate a solid surface, the lubricant is generally applied or sprayed on the solid surface that needs to be lubricated, which will form a thicker lubricating layer on the solid surface, and the thickness of the lubricating layer is difficult to control, especially when the solid surface When the surface is uneven, the liquid lubricant is easy to accumulate in the concave place, but less distributed in the raised part, so it is difficult to make the liquid lubricant evenly distributed on the solid surface. When the thickness of the lubricating layer is required to be very thin, it is difficult to achieve it by smearing or spraying. When solid powder is used as a lubricant, the powder is often mi...

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Problems solved by technology

The Chinese invention patent application with the application number 98811297 discloses a lubricant for metallurgical powder composition. The lubricant is a solid powder at room temperature, and is mixed with iron-based powder to form a metal powder composition, which is then pressed and sintered into a powder Metallurgical products; this method of mixing powder-form lubricants with other powders to form a powder mixture containing lubricating powders has the disadvantage that more lubricants need to be mixed in order to achieve a better lubricating effect , but it is difficult to realize that the surface of the powder that needs to be formed is uniformly bonded with lubricant powder, and after sintering, due to the large amount of lubricant residue, the density of powder metallurgy parts is low, which affects the performance and quality of powder metallurgy parts

The Chinese invention patent application with the application number 03146264 discloses a powder metallurgy electrostatic mold wall lubrication device. By charging the powder lubricant with static electricity, the powder lubricant is adsorbed on the mold wall. The disadvantage is that the operation process is more complicated and reduces In order to improve the work efficiency, an electrostatic generator is needed, and the production cost increases, and the distribution of the powder lubricant on the mold wall is not uniform enough, which is greatly affected by the amount of static electricity

The Chinese invention patent application with the patent number 03138557 discloses a "method and device for lubricating molten glass forming molds". Lubricating carbon black particles are applied to the contact surface of the molten glass. This carbon black particle needs to be produced through a chemical reaction, which requires high operating conditions, and this carbon black particle is mainly used to lubricate large-area solid surfaces (glass manufacturing machines) Fused glass contact piece), the mode of action is smoke-like, the distribution in space is not uniform enough, and it cannot be well used in the lubrication field of powder solids

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