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Rotating shaft metal material of numerical control machine tool and preparation method thereof

A technology of metal materials and CNC machine tools, which is applied in the field of metal materials, can solve the problems of mold hardness not meeting the requirements, hidden dangers of CNC machine tools, high scrap rate, etc., and achieve the effects of ensuring stability, enhancing toughness, and rapid hardness

Inactive Publication Date: 2017-09-01
HEFEI KANGZHIHENG MACHINERY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The application range of metal materials is extremely wide. Among them, there are many metal materials used in the manufacture of CNC machine tools. CNC machine tools have brought great convenience to people, but at the same time they have also brought some shortcomings. Since the birth of CNC machine tools, neglect Numerical control machine tools have brought safety hazards to people
The manufacturing method of the metal material of the rotating shaft in the prior art is processed by a CNC machine tool, and it needs to go through more than a dozen processes such as blanking, forging, annealing, preliminary processing, finishing, quenching, tempering, grinding, and mold repairing. The quenching process of the process has strict requirements, and its scrap rate is also high. If there is a problem in the final quenching process, such as the quenching temperature is not well controlled, the mold hardness cannot meet the requirements, or the quenching crack leads to scrapping, the loss will be great.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A metal material for the rotating shaft of a CNC machine tool, consisting of the following components by mass percentage: 0.28% carbon, 0.32% silicon, 0.56% manganese, 3.68% phosphorus, 0.69% tin, 0.74% chromium, 2.56% aluminum, 2.67% copper, and 0.26% palladium %, the balance is iron and unavoidable impurities.

[0024] The method for preparing the metal material of the rotating shaft of the numerical control machine tool includes the following steps:

[0025] (1) Pretreatment: Weigh carbon, silicon, manganese, phosphorus, tin, chromium, aluminum, copper, palladium, and iron components according to the mass percentage, put them into the melting furnace, heat up to 1580°C for heating and melting, and keep warm For 4.5 hours, use 0.05MPa, 8°C nitrogen to cool to room temperature to obtain a pretreated metal mixture; where, the temperature program is specifically: 30-40°C / min to 500-600°C, holding for 20-30min; 40-50°C Heat up to 900-1000°C / min, keep warm for 10-20min; h...

Embodiment 2

[0030] A metal material for the rotating shaft of a CNC machine tool, consisting of the following components in mass percentage: 0.32% carbon, 0.33% silicon, 0.62% manganese, 4.54% phosphorus, 1.23% tin, 0.81% chromium, 2.82% aluminum, 2.72% copper, and 0.30 palladium %, the balance is iron and unavoidable impurities.

[0031] The method for preparing the metal material of the rotating shaft of the numerical control machine tool includes the following steps:

[0032] (1) Pretreatment: Weigh carbon, silicon, manganese, phosphorus, tin, chromium, aluminum, copper, palladium, and iron components according to the mass percentage, put them into the melting furnace, heat up to 1600°C for heating and melting, and keep warm For 5 hours, use 0.06MPa, 10°C nitrogen to cool to room temperature to obtain the pretreated metal mixture; where, the temperature program is specifically: 30-40°C / min to 500-600°C, heat preservation 20-30min; 40-50°C Heat up to 900-1000°C / min, keep warm for 10-20...

Embodiment 3

[0037] A metal material for the rotating shaft of a CNC machine tool, consisting of the following components in mass percentage: 0.26% carbon, 0.28% silicon, 0.60% manganese, 3.26% phosphorus, 0.88% tin, 0.73% chromium, 2.65% aluminum, 2.86% copper, and 0.25% palladium %, the balance is iron and unavoidable impurities.

[0038] The method for preparing the metal material of the rotating shaft of the numerical control machine tool includes the following steps:

[0039] (1) Pretreatment: Weigh carbon, silicon, manganese, phosphorus, tin, chromium, aluminum, copper, palladium, and iron components according to the mass percentage, put them into the melting furnace, heat up to 1620°C for heating and melting, and keep warm For 5.5 hours, use 0.08MPa, 12°C nitrogen to cool to room temperature to obtain the pretreated metal mixture; where, the temperature program is specifically: 30-40°C / min to 500-600°C, heat preservation 20-30min; 40-50°C Heat up to 900-1000°C / min, keep warm for 10...

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PUM

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Abstract

The invention discloses a rotating shaft metal material of a numerical control machine tool and a preparation method thereof. The metal material comprises the following components in percentage by mass: 0.26-0.35% of carbon, 0.25-0.35% of silicon, 0.54-0.68% of manganese, 2.55-5.57% of phosphorus, 0.52-1.56% of tin, 0.65-0.86% of chromium, 1.25-3.48% of aluminum, 2.48-3.15% of copper, 0.15-0.38% of palladium, and the balance iron and inevitable impurities. The preparation method comprises the steps of pretreatment, quenching, pouring and tempering. The metal material is prepared by compounding multiple metal and nonmetal elements, is once formed by casting, is excellent in mechanical performance, wear resistance, corrosion resistance and weather resistance, and is tight and uniform in texture; and the preparation method saves the machining time, and reduces the cost.

Description

technical field [0001] The invention relates to the technical field of metal materials, in particular to a metal material for a rotating shaft of a numerical control machine tool and a preparation method thereof. Background technique [0002] The range of application of metal materials is extremely wide. Among them, there are many metal materials used in the manufacture of CNC machine tools. CNC machine tools have brought great convenience to people, but at the same time they have also brought some shortcomings. Since the birth of CNC machine tools, neglect The loss of CNC machine tools has brought potential safety hazards to people. The manufacturing method of the metal material of the rotating shaft in the prior art is processed by a CNC machine tool, and it needs to go through more than a dozen processes such as blanking, forging, annealing, preliminary processing, finishing, quenching, tempering, grinding, and mold repairing. The quenching process of the process has str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/06C22C38/20C22C33/04C21D1/18C21D6/00
CPCC21D1/18C21D6/002C21D6/005C21D6/008C22C33/04C22C38/002C22C38/008C22C38/02C22C38/04C22C38/06C22C38/20
Inventor 廖月
Owner HEFEI KANGZHIHENG MACHINERY TECH CO LTD
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