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Dry cutting method for dry ice cooling

A dry cutting and dry ice technology, used in metal processing machinery parts, maintenance and safety accessories, metal processing equipment, etc., can solve the problems of high economic cost, pollution and troublesome follow-up treatment, to improve productivity, improve service life, The effect of reducing the content of O2

Inactive Publication Date: 2014-05-21
CHANGZHOU UNIV
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Problems solved by technology

Generally, when cutting fluid is used, it is poured continuously and fully, and it must not be intermittent, so as to avoid cracks caused by large thermal stress and damage to the tool; but the economic cost of this is quite high, and the pollution caused by a large amount of cutting fluid and Subsequent processing is troublesome. According to relevant statistics, the daily discharge of waste emulsion in my country is close to 100 million tons. The steam, mist and mist produced by the volatilization of cutting fluid and cutting fluid will breed bacteria, causing many diseases of workers' respiratory tract and lungs.

Method used

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  • Dry cutting method for dry ice cooling
  • Dry cutting method for dry ice cooling
  • Dry cutting method for dry ice cooling

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Embodiment Construction

[0018] (1) When the pulverizer 2 and the air compressor 1 are all closed, open the top cover 3, load industrial dry ice, close the top cover, open the pulverizer 2, make the dry ice evenly crushed for 3~5 minutes, and turn on the air compressor 1. Adjust the powder flow valve 4 to a flow rate of 20~40kg / h, the distance between the nozzle and the cutting part is 15cm, and the cooling is performed from the flank surface, and the diameter of the nozzle is 2cm.

[0019] (2) Take YT15 tool turning 45 steel (HRC=58) ф200 outer circle as an example to verify the effect of dry ice cooling, tool parameters: gamma 0 =7°, K γ =90°, lambda s =0; cutting parameters: cutting speed is 60, 90, 120, 150, 180r / min, feed rate is 0.08mm / r, cutting depth a p =1mm, under the condition that the amount of dry ice is 40kg / h, use the JB-1C roughness detector to measure the surface roughness value of the workpiece R a (μm), and use the JT1168 tool sharpness and edge retention tester to measure ...

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Abstract

The invention relates to the technical field of turning, in particular to a dry cutting method for dry ice cooling. The dry cutting method is characterized in that dry ice is smashed into powder, the powder and compressed air are mixed, and the powder is sprayed on a cutting machining portion of a cutting tool at the same time in the machining process. According to the dry cutting method, the problems of waste of cutting liquid and environmental pollution caused by the cutting liquid in the existing turning process are solved, the temperature of a cutting area is obviously reduced, precision of a machining surface is improved, the service life of a tool is prolonged, and economic benefits in the cutting machining process are improved.

Description

technical field [0001] The patent of the present invention relates to the technical field of turning processing, specifically refers to a dry cutting method cooled by dry ice, which solves the waste of cutting fluid and the environmental pollution caused by the current turning processing, significantly reduces the temperature of the cutting area, and improves the processing surface. The accuracy prolongs the service life of the tool and improves the economic benefits in cutting. technical background [0002] During the turning process, the temperature is very high, and the friction coefficient between the tool and the substrate is also large, so cutting fluid is required for cooling and lubrication. Generally, when cutting fluid is used, it is poured continuously and fully, and it must not be intermittent, so as to avoid cracks caused by large thermal stress and damage to the tool; but the economic cost of this is quite high, and the pollution caused by a large amount of cut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q11/10
CPCB23Q11/1061
Inventor 孔德军付贵忠王文昌张垒叶存冬
Owner CHANGZHOU UNIV
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