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A kind of low melting point lubricant or release agent, preparation method and application thereof

A technology of lubricant and mold release agent, applied in manufacturing tools, casting and molding equipment, metal processing equipment, etc., can solve the problems of undisclosed glass powder composition, formula and manufacturing process, undisclosed glass powder preparation process, etc. Inexpensive, improving surface quality, preventing oxidation

Inactive Publication Date: 2018-09-18
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese Patent Publication No. CN101376142A discloses the production process of using glass powder as a special lubricant for extrusion of titanium and titanium alloy profiles. Heating to the processing temperature; the masterbatch to be processed can also be heated to above 900°C, and then the glass powder is evenly applied for processing; but this patent does not disclose the composition, formula and manufacturing process of the glass powder
This patent also does not disclose the preparation process of glass powder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Composition in weight percent: P 2 o 5 57.2%, B 2 o 3 5.2%, Na 2 O37.1%, BaO0.5%.

[0032] According to the chemical composition, calculate its consumption in parts by weight: 125.31 parts of sodium dihydrogen phosphate, 21.31 parts of sodium carbonate, 9.98 parts of boric acid, 0.64 part of barium carbonate, and mix after precise weighing.

[0033] Put the uniformly mixed raw materials into the crucible, then put the crucible with the mixed material in the electric furnace, heat it to 700°C, and melt it for 40 minutes to form a uniform glass liquid.

[0034] The resulting uniform glass liquid is poured into an iron plate or iron tank, and then the iron plate or iron tank is tilted up and down to form glass lubricant flakes.

[0035]After cooling, break the glass flakes into smaller than 4mm, and then use a pulverizer to process them into glass powder that passes through a 40-mesh sieve.

Embodiment 2

[0037] Composition in weight percent: P 2 o 5 56.0%, B 2 o 3 5.0%, Na 2 O38.7%, ZnO0.2%, SnO0.1%. According to the chemical composition, calculate its dosage in parts by weight: 123.07 parts of sodium dihydrogen phosphate, 23.52 parts of sodium carbonate, 8.84 parts of boric acid, 0.2 part of zinc oxide, 0.1 part of tin oxide, and mix after precise weighing.

[0038] Put the uniformly mixed raw materials into the crucible, then put the crucible with the mixed material in the electric furnace, heat it to 850°C, and melt it for 40 minutes to form a uniform glass liquid.

[0039] The resulting uniform glass liquid is poured into an iron plate or iron tank, and the iron plate or iron tank is tilted to form glass lubricant flakes.

[0040] After cooling, break the glass flakes into smaller than 4mm, and then use a pulverizer to process them into glass powder that passes through a 40-mesh sieve.

Embodiment 3

[0042] Composition in weight percent: P 2 o 5 59.0%, B 2 o 3 4.2%, Na 2 O36.2%, BaO0.4%, Bi 2 o 3 0.2%. According to the chemical composition, the calculated dosage is: 129.60 parts of sodium dihydrogen phosphate, 13.34 parts of sodium carbonate, 143.16 parts of boric acid, 0.64 part of barium carbonate, and 0.2 part of bismuth oxide, which are precisely weighed and mixed.

[0043] Put the uniformly mixed raw materials into the crucible, then place the crucible with the mixed material in the electric furnace, heat to 800°C, and melt for 40 minutes to form a uniform glass liquid.

[0044] The resulting uniform glass liquid is poured into an iron plate or iron tank, and the iron plate or iron tank is tilted to form glass lubricant flakes.

[0045] After cooling, break the glass flakes into smaller than 4mm, and then use a pulverizer to process them into glass powder that passes through a 40-mesh sieve.

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Abstract

The invention discloses a lubricant or a release agent with a low melting point. The raw materials comprise main components in weight ratio as follows: 30-60 of P2O5, 4-20 of B2O3 and 20-50 of Na2O. A preparation method comprises following steps: (1), heating: the components in the weight ratio are taken, mixed and treated at 700-850 DEG C for 30-40 min; (2), cooling: a product is cooled at 15-40 DEG C for 1-6 min; (3), grinding: a product is ground and sieved by a 40-mesh sieve. The lubricant or the release agent with the low melting point is easily dissolved in water, is free of environmental pollution, low in cost, lower in melting temperature and softening temperature, applicable to metal such as a Ti alloy, pure Al and the like forged and processed at lower temperature and also applicable to hot embossing of glass products such as a mobile phone glass cover-plate and the like, the melting temperature is only 700-850 DEG C, and the softening temperature is 400-500 DEG C.

Description

technical field [0001] The invention relates to a low melting point lubricant or release agent, a preparation method and its application in the processing of glass products or metal products, belonging to the technical fields of glass manufacturing and metal thermal processing. Background technique [0002] Titanium alloys and pure aluminum need a lubricant to lubricate, prevent oxidation, protect the surface of the matrix and the mold, and release the mold during hot rolling, extrusion, and precision casting. Glass lubricants are ideal lubricating materials that meet the above conditions . Compared with traditional metal lubricants, glass is cheap, has good heat insulation effect, is easy to demould, does not pollute the environment and parent materials, and can improve the surface quality of profiles. [0003] In recent years, non-planar displays have been used in the manufacture of mobile phones, which are composed of curved glass cover plates and curved glass substrates...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B40/02B22C3/00
Inventor 王承遇汤华娟
Owner DALIAN POLYTECHNIC UNIVERSITY