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Machining Technology of Mechanical Spindle

A processing technology and spindle technology, which is applied in the processing technology field of mechanical spindles, can solve the problems of parts strength, hardness, weather resistance, plastic defects, it is difficult to control the occurrence of gaps, and affect the comprehensive performance of alloys, etc., to achieve the effect of improving refinement , Change the fracture mechanism and improve the organizational effect

Active Publication Date: 2020-06-23
宁波市鄞州兴韩机械实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the element composition of the alloy determines the performance of the steel to a large extent, different processing techniques will also affect the overall performance of the alloy.
Traditional mechanical parts are directly machined into required parts by using already smelted alloy ingots or alloy plates, or directly inject molten steel into molds, and are also prepared by powder metallurgy technology. Although the traditional processing technology is Mature, but the prepared parts have defects in strength, hardness, weather resistance, and plasticity, especially in the powder metallurgy process, it is difficult to control the gaps.

Method used

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  • Machining Technology of Mechanical Spindle
  • Machining Technology of Mechanical Spindle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Alloy smelting: The alloy ingot is cut and melted to form an alloy liquid. The composition and mass percentage of the alloy ingot are: C: 0.2%, Si: 0.15%, Mn: 0.07%, Mg: 0.08%, Tl: 0.04%, The balance is Fe and inevitable impurities;

[0032] Refinement: add coal powder, calcium fluoride, and sodium nitrate to the alloy liquid with a 3:1:1 mixed refining agent for refining, and then NaBF with a mass ratio of 1:2 4 , B 4 C. Pour the mixed refiner into the alloy liquid, and after the refiner solidifies on the surface of the alloy liquid, press into the alloy liquid and stir to obtain a mixed melt;

[0033] Purification: Put the multi-way valve into the mixed melt, and then adjust the volume ratio He:N 2 The mixed gas of =9.3:1 is ejected through the valve hole, and at the same time, the mixed gas is also mixed with B with a volume ratio of 15:2:1 2 H 6 , C 2 Cl 6 , KCl mixed purifying agent, the diameter of the multi-way valve is 0.3mm, the speed is 110r / min, and the jet flow is...

Embodiment 2

[0036] Alloy smelting: The alloy ingot is cut and melted to form an alloy liquid. The composition and mass percentage of the alloy ingot are: C: 0.3%, Si: 0.18%, Mn: 0.1%, Mg: 0.1%, Tl: 0.06%, The balance is Fe and inevitable impurities;

[0037] Refinement: add coal powder, calcium fluoride, and sodium nitrate to the alloy liquid with a 3:1:1 mixed refining agent for refining, and then NaBF with a mass ratio of 1:2 4 , B 4 C. Pour the mixed refiner into the alloy liquid, and after the refiner solidifies on the surface of the alloy liquid, press into the alloy liquid and stir to obtain a mixed melt;

[0038] Purification: Put the multi-way valve into the mixed melt, and then adjust the volume ratio He:N 2 The mixed gas of =9.3:1 is ejected through the valve hole, and at the same time, the mixed gas is also mixed with B with a volume ratio of 15:2:1 2 H 6 , C 2 Cl 6 , KCl mixed purifying agent, the diameter of the multi-way valve is 0.3mm, the speed is 110r / min, and the jet flow is 2...

Embodiment 3

[0041] Alloy smelting: The alloy ingot is cut and melted to form an alloy liquid. The composition and mass percentage of the alloy ingot are: C: 0.1%, Si: 0.12%, Mn: 0.04%, Mg: 0.06%, Tl: 0.02%, The balance is Fe and inevitable impurities;

[0042] Refinement: add coal powder, calcium fluoride, and sodium nitrate to the alloy liquid with a 3:1:1 mixed refining agent for refining, and then NaBF with a mass ratio of 1:2 4 , B 4 C. Pour the mixed refiner into the alloy liquid, and after the refiner solidifies on the surface of the alloy liquid, press into the alloy liquid and stir to obtain a mixed melt;

[0043] Purification: Put the multi-way valve into the mixed melt, and then adjust the volume ratio He:N 2 The mixed gas of =9.3:1 is ejected through the valve hole, and at the same time, the mixed gas is also mixed with B with a volume ratio of 15:2:1 2 H 6 , C 2 Cl 6 , KCl mixed purifying agent, the diameter of the multi-way valve is 0.3mm, the speed is 110r / min, and the jet flow is...

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Abstract

The invention discloses a processing technology of a mechanical main shaft, belonging to the technical field of shaft processing. The mechanical main shaft organically combines with a refining processwith a purification process through the steps of alloy smelting, refining, purification, molding and the like, which greatly improves the comprehensive performance of the main shaft. The refining process is different from a traditional refining process, the specific refining process can be accompanied by the change of the object state of a refining agent, the bonding degree of the refining agentand the alloy is improved, the refining effect is improved, and a composite purification process combined with the air jet and the purifying agent is adopted, and can spread to a whole alloy system inall-round way and avoid the uneven purification of the alloy.

Description

Technical field [0001] The invention belongs to the technical field of shaft processing, and specifically relates to a processing technology of a mechanical spindle. Background technique [0002] Mechanical spindle refers to the axis that drives the workpiece or tool to rotate on the machine tool. It usually consists of spindle, bearings and transmission parts. In the machine, it is mainly used to support transmission, transfer movement and torque, or to clamp workpieces. The motion accuracy and structural rigidity of the spindle components are important factors that determine the processing quality and cutting efficiency. Among them, the motion accuracy can be achieved through machining and mechanical equipment, while the structural rigidity is determined by the material of the spindle. [0003] The material of mechanical spindle is generally made of steel. Steel refers to an alloy system based on iron, adding a certain amount of carbon, silicon, manganese and other additional el...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/14C21C7/072C21C7/04
CPCC21C7/04C21C7/072C22C38/002C22C38/02C22C38/04C22C38/14
Inventor 张超斌张寒王鉴翰
Owner 宁波市鄞州兴韩机械实业有限公司
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