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Nano boron carbide composite sand material for sand-blasting treatment of valve

A nano-boron carbide and sand treatment technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of high hardness of emery, reduced workpiece quality, poor polishing effect, etc., and achieves low sand consumption, good effect and stable composition. Effect

Inactive Publication Date: 2015-11-11
HEXIAN KEJIA VALVE CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the actual production process, the polishing effect will be poor when only emery is used for the sandblasting of valve workpieces
The reason is that the hardness of corundum is relatively high, and when the high-speed gas is used to impact the surface of the workpiece, it is easy to cause damage to the parts that do not need to be polished, thereby reducing the quality of the workpiece

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A nano-boron carbide composite sand material for valve sandblasting treatment, made of the following raw materials in parts by mass:

[0021] 15 parts of nano boron carbide, 50 parts of quartz sand, 12 parts of marble crystal powder, 8 parts of vermiculite powder, 6 parts of composite adhesive, 5 parts of ceramic powder, 3 parts of talcum powder, 2 parts of concentrated hydrochloric acid, 25 parts of ethanol, 45 parts of water share;

[0022] Its preparation method is:

[0023] (1) First disperse marble crystal powder and ceramic powder in water, add concentrated hydrochloric acid after soaking for 2 hours, and ultrasonically treat the mixture for 20 minutes at an ultrasonic frequency of 22kHz and a power of 50W, then add it to a ball mill, add vermiculite powder and talc powder after ball milling for 30 minutes, Continue ball milling until the particle size is less than 20 μm to obtain material I;

[0024] (2) Disperse nano-boron carbide and quartz sand in ethanol, t...

Embodiment 2

[0029] A nano-boron carbide composite sand material for valve sandblasting treatment, made of the following raw materials in parts by mass:

[0030] 16 parts of nano boron carbide, 55 parts of quartz sand, 13 parts of marble crystal powder, 10 parts of vermiculite powder, 7 parts of composite adhesive, 6 parts of ceramic powder, 4 parts of talcum powder, 2 parts of concentrated hydrochloric acid, 25 parts of ethanol, 50 parts of water share.

[0031] The preparation method of the present embodiment sand material is the same as embodiment 1.

Embodiment 3

[0033] A nano-boron carbide composite sand material for valve sandblasting treatment, made of the following raw materials in parts by mass:

[0034] 18 parts of nano boron carbide, 60 parts of quartz sand, 15 parts of marble crystal powder, 12 parts of vermiculite powder, 8 parts of composite binder, 6 parts of ceramic powder, 5 parts of talcum powder, 3 parts of concentrated hydrochloric acid, 30 parts of ethanol, 50 parts of water share.

[0035] The preparation method of the present embodiment sand material is the same as embodiment 1.

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Abstract

The invention discloses a nano boron carbide composite sand material for sand-blasting treatment of a valve and relates to the technical field of valve manufacture. The nano boron carbide composite sand material is prepared from the following raw materials in parts by mass: 15-18 parts of nano boron carbide, 50-60 parts of quartz sand, 12-15 parts of marble crystal powder, 8-12 parts of vermiculite powder, 6-9 parts of a compound adhesive, 5-8 parts of ceramic powder, 3-5 parts of talcum powder, 2-3 parts of concentrated hydrochloric acid, 25-30 parts of ethanol and 45-50 parts of water. The prepared sand material is moderate in hardness, high in ductility and stable in ingredient, has the characteristics of being resistant to abrasion and acid and alkali, low in sand consumption and capable of being recovered for cyclic utilization, is short in polishing time, good in polishing effect, and sharp in corner, and therefore, is an ideal material for polishing valve workpieces.

Description

Technical field: [0001] The invention relates to the technical field of valve manufacturing, in particular to a nano boron carbide composite sand material for sand blasting treatment of valves. Background technique: [0002] In the production process of valves, due to problems such as production technology, most of the phenomena such as burrs and convex edges will appear on the surface of the workpiece, so that the workpiece cannot meet the requirements in actual use, so it is necessary to sandblast the surface to grind Burrs on the surface of flat workpieces, etc. Sand blasting is a treatment process that uses high-speed gas to impact sand particles on the surface of the workpiece to remove surface rust, burrs and convex edges. Most of the sand grains are corundum, which has the characteristics of short polishing time, high efficiency and low price. [0003] In the actual production process, the polishing effect will be poor when only emery is used for the sandblasting of...

Claims

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Application Information

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IPC IPC(8): C09K3/14
Inventor 黎宏
Owner HEXIAN KEJIA VALVE CASTING
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