Small-size cast part drum-type shot blasting sand cleaning aid

A casting, drum-type technology, applied in the directions of detergent compounding agent, detergent composition, polishing composition containing abrasives, etc., can solve the problems of wear, reduce the surface size accuracy of castings, etc., and ensure the sealing effect. , The effect of improving the surface quality of the factory and speeding up the speed of the factory

Inactive Publication Date: 2017-09-01
ANHUI SOLID FOUNDRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the contact mode between the casting and the projectile in the process of shot blasting and sand cleaning is a hard contact, and the rigidity of the projectile is strong, it will cause a certain amount of wear to the angular structure of the casting while quickly cleaning and removing the sand on the surface of the casting, thereby reducing the cost of the casting. surface dimension accuracy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Add 2 g of polyethylene oxide and 0.3 g of hexamethylolmelamine hexamethyl ether to 5 g of ultrafine magnesia-supported hydrogenated rosin glyceride, and heat up to 120-125 ° C at a heating rate of 5 ° C / min and mix for 30 min. Then transfer to 0-5°C environment and seal it for 30 minutes, then add 3g microcrystalline cellulose and 1g cetyl alcohol, continue to heat up to 80-85°C at a heating rate of 5°C / min and mix for 15 minutes to obtain the powder. I;

[0025] (2) Add 1g of C5 hydrogenated petroleum resin and 0.5g of sepiolite fiber powder to 3g of molecular sieve raw powder-poloxamer compound, and heat up to 125-130°C at a heating rate of 5°C / min and mix for 15min , then add 0.1g polytetrafluoroethylene superfine powder and 0.05g ferrocene, and continue to mix at 125-130°C for 15min to obtain powder II;

[0026] (3) Add powder II and 0.5 g of hydrogenated palm oil to powder I, mix well, compress into a block by vacuum, and then use a pulverizer to make parti...

Embodiment 2

[0030] (1) Add 3 g of polyethylene oxide and 0.5 g of hexamethylolmelamine hexamethyl ether to 10 g of superfine magnesium oxide-loaded hydrogenated rosin glyceride, and heat up to 120-125 ° C at a heating rate of 5 ° C / min and mix for 30 min. Then transfer to 0-5°C environment and seal it for 30min, then add 5g microcrystalline cellulose and 1g cetyl alcohol, continue to heat up to 80-85°C at a heating rate of 5°C / min and mix for 15min to obtain the powder. I;

[0031] (2) Add 1g of C5 hydrogenated petroleum resin and 0.5g of sepiolite fiber powder to 5g of molecular sieve raw powder-poloxamer compound, and heat up to 125-130°C at a heating rate of 5°C / min and mix for 15min , then add 0.2g polytetrafluoroethylene superfine powder and 0.05g ferrocene, and continue to mix at 125-130°C for 15min to obtain powder II;

[0032] (3) Add powder II and 1g of hydrogenated palm oil to powder I, mix well, compress into blocks by vacuum, and then use a pulverizer to make particles with...

Embodiment 3

[0054] Utilize respectively embodiment 1, embodiment 2, comparative example 1, comparative example 2, the prepared sand-clearing aid of comparative example 3 to mix with projectiles to make sand-clearing pills, utilize the sand-clearing pills made to the same batch of similar and equivalent Small castings are subjected to drum-type shot blasting and sand cleaning treatment (taking the valve body as an example), the ratio of the amount of sand cleaning aids and projectiles is shown in Table 1, and a control example 4 without sand cleaning aids is set at the same time; and the utilization, etc. Measure the sand cleaning time required to achieve the same sand cleaning effect when the sand cleaning shot is used to clean the valve body, and the surface dimension accuracy of the casting after sand cleaning. The measurement results are shown in Table 2.

[0055] Table 1 The distribution ratio of sand cleaning pills

[0056] Dosage ratio Example 1 Example 2 Comparative ...

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Abstract

The invention discloses a drum type shot blasting and sand cleaning aid for small castings, which relates to the technical field of the foundry industry. 3-5 parts of cellulose, 3-5 parts of molecular sieve original powder-poloxamer complex, 2-3 parts of polyethylene oxide, 1-2 parts of C5 hydrogenated petroleum resin, 1-2 parts of cetyl alcohol, hydrogenated palm 0.5-1 part of oil, 0.5-1 part of sepiolite fiber powder, 0.3-0.5 part of hexamethylolmelamine hexamethyl ether, 0.1-0.3 part of polytetrafluoroethylene ultrafine powder, and 0.05-0.1 part of ferrocene. The invention utilizes the prepared sand cleaning aid and the projectiles to be fully mixed to obtain the sand cleaning pills. The use of the sand cleaning pills can significantly shorten the sand cleaning time on the basis of ensuring the sand cleaning effect; and effectively improve the sand cleaning effect of the castings Surface dimensional accuracy, with an accuracy of 99.98%.

Description

[0001] Technical field: [0002] The invention relates to the technical field of foundry industry, in particular to a drum-type shot blasting sand cleaning aid for small castings. [0003] Background technique: [0004] The sand cleaning process of castings refers to the operation of removing sticky sand on the surface of castings after shakeout, so as to improve the surface quality and dimensional accuracy of castings. Shot blasting is a commonly used dry sand cleaning method for castings at present, and the drum shot blasting machine is especially suitable for small castings. The high-speed rotating impeller is used to throw the projectiles on the castings that are continuously turned in the drum, so as to achieve The purpose of cleaning sand on the surface of castings. Since the contact mode between the casting and the projectile in the process of shot blasting and sand cleaning is a hard contact, and the rigidity of the projectile is strong, it will cause a certain amount ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09G1/02C11D1/825C11D3/22C11D3/37C11D3/14C11D3/38C11D3/382C11D3/20C11D3/28C11D3/16
CPCC09G1/02C11D1/008C11D1/667C11D1/72C11D1/721C11D1/825C11D3/14C11D3/168C11D3/2013C11D3/222C11D3/28C11D3/3749C11D3/38C11D3/382
Inventor 何祥炎孙国政周万波
Owner ANHUI SOLID FOUNDRY CO LTD
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