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Block grinding head and application of high-strength aluminum alloy in preparation of block grinding head

A high-strength, aluminum alloy technology, applied in metal processing equipment, abrasives, manufacturing tools, etc., can solve problems affecting alloy processability, material toughness, and plastic deterioration, etc., to reduce equipment costs, reduce rigidity requirements, and simplify installation and the effect of replacing

Inactive Publication Date: 2019-01-25
TIANJIN BAIENWEI NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, in conventional aluminum alloy casting, the aluminum alloy formula is limited by the casting process, so that some rationalized alloy elements cannot be added or added too much. In addition, due to the aluminum alloy casting, the cooling rate is between 10-10 2 K / sec range, therefore, macro-segregation of alloying elements will occur, with an average grain size of 80-300 μm, which leads to poor toughness and plasticity of the material, and seriously affects the processability of the alloy due to the brittleness of the intermetallic compound

Method used

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  • Block grinding head and application of high-strength aluminum alloy in preparation of block grinding head
  • Block grinding head and application of high-strength aluminum alloy in preparation of block grinding head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a cloth grinding head, which is made of high-strength aluminum alloy as the main material. The preparation method of the cloth grinding head is as follows:

[0026] (1) 12% zinc, 2.3% copper, 2% magnesium, 0.12% zirconium, the rest are aluminum and unavoidable impurities mixed and heated to 900°C to obtain an alloy melt;

[0027] (2) The alloy melt described in step (1) is poured into the tundish, so that the melt flows out from the small hole of Φ5mm at the bottom of the tundish to become an alloy stream and enters an oxygen-free atomization chamber of an argon atmosphere, and the control The flow rate of the alloy stream is 1kg / min;

[0028] (3) In an oxygen-free atomization chamber with an argon atmosphere, spray the alloy stream described in step (2) with 0.2MPa high-pressure argon to obtain liquid droplets;

[0029] (4) The droplet described in step (3) is mixed with 10 5 The cooling rate of K / sec is rapidly cooled to deposit on the colle...

Embodiment 2

[0032] This embodiment provides a cloth grinding head, which is made of high-strength aluminum alloy as the main material. The preparation method of the cloth grinding head is as follows:

[0033] (1) 12% zinc, 2.5% copper, 2.2% magnesium, 0.14% zirconium, the rest are aluminum and unavoidable impurities mixed and heated to 750°C to obtain an alloy melt;

[0034] (2) The alloy melt described in step (1) is poured into the tundish, so that the melt flows out from the small hole of Φ5mm at the bottom of the tundish to become an alloy stream and enters an oxygen-free atomization chamber of an argon atmosphere, and the control The flow rate of the alloy stream is 4kg / min;

[0035] (3) In an oxygen-free atomization chamber with an argon atmosphere, spray the alloy stream described in step (2) with 2MPa high-pressure argon to obtain liquid droplets;

[0036] (4) The droplet described in step (3) is mixed with 10 3 The cooling rate of K / sec is rapidly cooled to deposit on the colle...

Embodiment 3

[0039] This embodiment provides a cloth grinding head, which is made of high-strength aluminum alloy as the main material. The preparation method of the cloth grinding head is as follows:

[0040] (1) 8% zinc, 2% copper, 1.8% magnesium, 0.1% zirconium, the rest are aluminum and unavoidable impurities mixed and heated to 1000°C to obtain an alloy melt;

[0041] (2) The alloy melt described in step (1) is poured into the tundish, so that the melt flows out from the small hole of Φ5mm at the bottom of the tundish to become an alloy stream and enters an oxygen-free atomization chamber of an argon atmosphere, and the control The flow rate of the alloy stream is 3kg / min;

[0042] (3) In an oxygen-free atomization chamber with an argon atmosphere, spray the alloy stream described in step (2) with 1MPa high-pressure argon to obtain liquid droplets;

[0043] (4) The droplet described in step (3) is mixed with 10 3 The cooling rate of K / sec is rapidly cooled to deposit on the collecti...

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Abstract

The invention relates to a block grinding head and application of high-strength aluminum alloy in preparation of the block grinding head. The high-strength aluminum alloy is prepared from, by weight,8-12% of zinc, 2-2.5% of copper, 1.8-2.2% of magnesium, 0.1-0.14% of zirconium, the balance aluminum and inevitable impurities. The density of the high-strength aluminum alloy is 2.86-2.9 g.cm<3>, thetensile strength is 685-815 MPa, the yield strength is 655-767 MPa, the hardness is 185-220 HB, the average grain size is 3-10 micrometers, and the oxygen content is smaller than 100 ppm. Due to thefact that the high-strength aluminum alloy has the advantages of being high in strength and low in density, the weight of the block grinding head can be lowered, the power of a main shaft motor of a stone and ceramic board grinding machine is lowered, and the power consumption and the corresponding cost are saved during stone board machining.

Description

technical field [0001] The invention belongs to the technical field of spray forming technology, and in particular relates to a brazing grinding head and the application of high-strength aluminum alloy in preparing the brazing grinding head. Background technique [0002] The Block grinding head was first designed by Italy, and it is a conventional grinding head for the current stone plate processing equipment. At present, the processing of stone slabs has developed towards larger slabs to meet various decorative and practical needs, such as meeting the requirements of background walls and overall cabinets. The surface size of the slabs has reached or exceeded 2×2m (length×width) ), so the equipment used is designed in the form of a stone plate continuous conveyor belt feed, vertical spindle reciprocating grinding / polishing machine, and this type of grinding machine is generally equipped with a burlap grinding head. [0003] As the name implies, the design form of the Brahma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C21/10B22F3/115B24D3/00
CPCB22F3/115B24D3/001C22C1/026C22C21/10
Inventor 李珮豪彭波
Owner TIANJIN BAIENWEI NEW MATERIAL TECH
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