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Making method of glass lubrication pad for steel tube hot extrusion

A glass lubricating and manufacturing method technology, which is applied in the field of hot extrusion lubrication of steel pipes, can solve the problems of difficult forming of glass lubricating pads, etc., and achieve the effects of improving lubricating conditions, simple forming process and improving product quality.

Active Publication Date: 2016-03-30
宝武特种冶金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a method for making a glass lubricating pad for hot extrusion of steel pipes, which can make the glass lubricating pad strengthen in the forming mold during the manufacturing process and have a certain strength, so that the glass lubricating pad is not easy to break during the moving process , and it can also solve the problem that glass lubricating pads with local complex structures are difficult to form

Method used

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  • Making method of glass lubrication pad for steel tube hot extrusion
  • Making method of glass lubrication pad for steel tube hot extrusion
  • Making method of glass lubrication pad for steel tube hot extrusion

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Embodiment 1: the making of solid cylindrical glass lubricating pad

[0039] see figure 1 , figure 2 1 kg of glass powder and 20 g of water glass with a particle size ratio of 38% (20-40 orders), 45% (40-60 orders) and 17% (60-80 orders) were vigorously stirred in a vertical mixer for 5 minutes; Lay air-permeable thin paper on the bottom of the lower mold 2, and evenly open some air holes 21 on the lower mold 2; pour the mixed glass powder into the forming mold formed by the upper and lower molds 1 and 2, and use a scraper to scrape the glass powder The material is evenly filled in the forming mold, and the upper surface is scraped; cover the inflatable cover 4 with a gas pipe 3 on the glass lubricating pad, and open the CO 2 Air supply valve 5, blow air into the mold for 15 seconds; remove the inflatable cover 4; jack up the lower mold 2, and take out the glass lubricating pad 100; it can be used for profile extrusion after subsequent drying. With this method, the ...

example 2

[0040] Example 2: Production of special-shaped glass lubricating pads

[0041] 1 kg of glass powder with a particle size ratio of 38% (20-40 mesh), 45% (40-60 mesh) and 17% (60-80 mesh) and 20 g of water glass were vigorously stirred in a vertical mixer for 5 minutes. Glass lubricating pad forming mold such as image 3 , 4 shown. Pour the mixed glass powder into the mold, fill the glass powder evenly in the forming mold with a scraper, and scrape the upper surface. Put the upper mold 1' flat into the forming mold, press the upper mold 1' into the mold with a press or manually, so that the glass lubricating pad 100 is formed. Take out the upper mold 1', cover the inflatable cover with air tube on the glass lubricating pad, turn on the CO 2 Air supply valve, blow air into the forming mold for 15 seconds. Remove the inflatable cover. The lower mold 2' is jacked up, and the glass lubricating pad is taken out. It can be used for pipe extrusion after subsequent drying. The m...

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Abstract

A making method of a glass lubrication pad for steel tube hot extrusion comprises the following steps: a) glass powder comprises 30 to 50% of glass powder with the particle size of 20-40 mesh, 30 to 50% of glass powder with the particle size of 40 to 60 mesh and 10 to 30% of glass powder with the particle size of 60 to 80 mesh; 2) sodium silicate is used as a binder for molding of the glass powder, and the weight ratio of the glass powder to the sodium silicate is 100:1-3; 3) a mixture of the glass powder and the sodium silicate is put into a molding mold for molding, when in molding, the molding pressure is 0 or not more than 100kPa; and 4) CO2 is charged into a mold cavity, so that the CO2 is infiltrated into the mixture, the gas flow per liter of the mixture of the glass powder is 0.1-5L / min, and the gas charging time is 10 to 100 seconds. Through the making method, the glass lubrication pad can be reinforced in the molding mold in the making process, and has certain strength, so that the glass lubrication pad is not easy to break in a moving process, and the problem of difficult molding of the glass lubrication pad with a local complex structure can be also solved.

Description

technical field [0001] The invention relates to a steel pipe hot extrusion lubrication technology, in particular to a manufacturing method of a glass lubricating pad for steel pipe hot extrusion. Background technique [0002] Glass lubrication technology is widely used in hot extrusion of steel. The hot extrusion process of steel has high temperature and high speed, and has high requirements for lubricants. In addition to ensuring good lubrication effect, it should also have heat insulation to avoid overheating of tools and dies and significantly reduce service life. Glass lubricants can well meet the special requirements of steel hot extrusion lubrication and protection of tools and dies. When glass lubricants are used, there are usually two ways: [0003] The first is that the powdered glass is directly coated on the high-temperature metal, and the powdered glass is heated and melted by the high temperature on the surface of the blank, and then adhered to the surface of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26B21C23/32C04B14/22C04B22/06
Inventor 范永革陈久锋龚张耀
Owner 宝武特种冶金有限公司
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