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High-strength and high-toughness special oil sand for casting modeling

A high-strength, high-toughness technology, used in casting equipment, molds, cores, etc., can solve the problems of unclear and non-standard production marks, and achieve the effect of strong sand resistance, good toughness and high strength.

Inactive Publication Date: 2018-05-04
SINO TRUK JINAN POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This special oil sand has excellent properties such as high strength, high toughness, and high refractoriness; it solves the problems of unclear and irregular production marks of castings, ensures the traceability of castings, and improves the quality of castings

Method used

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  • High-strength and high-toughness special oil sand for casting modeling
  • High-strength and high-toughness special oil sand for casting modeling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 171102 batches of oil sand, formula (unit: kg): quartz sand 50, spherical ceramic sand 50, kaolin 2, bentonite 2.5, resin 3.5, industrial oil 1, tung oil 1, iron oxide powder 1.

[0025] Quartz sand is 150-200 mesh.

[0026] The spherical ceramic sand is 150-200 mesh.

[0027] Described industrial oil is No. 48 machine oils.

[0028] The resin is polyacrylic acid resin.

[0029] The special oil sand has a wet compressive strength of 60Kpa, a gas volume of 28ml / g at 1000°C, and a refractoriness of 1380-1430°C.

Embodiment 2

[0031] 171025 batches of oil sand, formula (unit: kg): quartz sand 50, spherical ceramic sand 50, kaolin 2.5, bentonite 3, resin 3, industrial oil 1, tung oil 2, iron oxide powder 1.

[0032] Quartz sand is 150-200 mesh.

[0033] The spherical ceramic sand is 150-200 mesh.

[0034] Described industrial oil is No. 48 machine oils.

[0035] The resin is polyacrylic acid resin.

[0036] Wet compressive strength: 55Kpa, gas output at 1000°C: 32ml / g, refractoriness 1380-1430°C.

Embodiment 3

[0038] A high-strength, high-toughness special oil sand for casting molding, formula (unit: kg): 100 quartz sand, 100 spherical ceramic sand, 4 kaolin, 6 bentonite, 7 resin, 2 industrial oil, 2 tung oil, 2 iron oxide powder . Quality parameters, wet compressive strength: 65Kpa, gas volume at 1000°C: 25ml / g, this special oil sand is used in a casting with a mass of 176KG, the pouring temperature is 1415°C, and there is no sticky sand or sintering on the casting surface where the oil sand is placed.

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Abstract

The invention discloses high-strength and high-toughness special oil sand for casting modeling. The high-strength and high-toughness special oil sand for casting modeling comprises silica sand, spherical ceramic sand, kaolin, bentonite, resin, industrial oil, tung oil and iron oxide powder. The high-strength and high-toughness special oil sand for casting modeling has excellent properties of highstrength, high toughness, high refractoriness and the like; the problem that production identifications of casts are not clear and are nonstandard is solved, traceability of the casts is ensured, andthe quality of cast products is improved. Meanwhile, the special oil sand can also be applied to a part, which is difficult to draw, of a die during modeling of green sand, and by the characteristicsof high strength and high toughness of the special oil sand, complete sand mould can be ensured after drawing.

Description

technical field [0001] The invention relates to the technical field of special oil sands, in particular to a high-strength and high-toughness special oil sands for casting molding. Background technique [0002] The foundry industry is the basic industry of the manufacturing industry. Castings are widely used in the equipment manufacturing industry and are the core components of the equipment manufacturing industry. With the continuous development of these industries, the quality requirements for castings are getting higher and higher. In order to ensure the traceability of castings, engine block and cylinder head castings need to be poured with clear and standardized production identification numbers (including production date and serial number of castings) on the surface of castings. Due to the toughness and strength of wet film sand, it is impossible to engrave clear marks on the surface of wet film sand mold with engraving device. It can only be marked manually on the su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C1/00
CPCB22C1/00
Inventor 李清震薛庆云范文明张志顺
Owner SINO TRUK JINAN POWER