High-wear-resistant Ba-Re-Ge zinc alloy suitable for cold chamber die casting

A cold chamber die casting and zinc alloy technology, applied in the field of alloys, can solve the problems of complex equipment, easy flux inclusions in castings, high cost, and achieve the effect of excellent flame retardant performance

Inactive Publication Date: 2018-06-15
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the disadvantages of high cost to varying degrees, flux inclusions in castings, and complicated equipment.
Therefore, the research, development and application of zinc-barium alloys are limited.
Therefore, in the i...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A high wear-resistant Ba-Re-Ge zinc alloy suitable for cold chamber die-casting smelted at 450 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ba: 0.9wt.%, Re: 0.5wt.%; Ge: 2.0wt.%, Sc: 1.4wt.%, Nb: 0.5wt.%, Ce: 0.2wt.% .%, the balance is zinc. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 450 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 450°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots. The ingot moves down at a speed of 12m / min. The ingot can be used as casting raw material for pressure casting in the subsequent process to prepare zinc-barium alloy castings with complex shapes; the final hea...

Embodiment 2

[0021]A high wear-resistant Ba-Re-Ge zinc alloy suitable for cold chamber die-casting smelted at 470 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ba: 0.9wt.%, Re: 0.5wt.%; Ge: 2.1wt.%, Sc: 1.5wt.%, Nb: 0.5wt.%, Ce: 0.2wt .%, the balance is zinc. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 470 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 470 degrees for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots. The ingot moves down at a speed of 12m / min. The ingot can be used as casting raw material for pressure casting in the subsequent process to prepare zinc-barium alloy castings with complex shapes; the final ...

Embodiment 3

[0024] A high wear-resistant Ba-Re-Ge zinc alloy smelted at 490°C suitable for cold chamber die-casting. In terms of weight percentage, the chemical composition of the alloy is: Ba: 0.9wt.%, Re: 0.5wt.%; Ge: 1.8wt.%, Sc: 1.5wt.%, Nb: 0.5wt.%, Ce: 0.2wt.% .%, the balance is zinc. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 490 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 490 degrees for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots. The ingot moves down at a speed of 12m / min. The ingot can be used as casting raw material for pressure casting in the subsequent process to prepare zinc-barium alloy castings with complex shapes; the final hea...

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PUM

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Abstract

The invention discloses a high-wear-resistant Ba-Re-Ge zinc alloy suitable for cold chamber die casting, and a processing technology thereof. The alloy is prepared from the components in percentage byweight: 0.8 to 1.2 percent of Ba, 0.4 to 0.6 percent of Re, 1.5 to 2.4 percent of Ge, 1.2 to 1.6 percent of Sc, 0.5 to 0.6 percent of Nb, 0.2 to 0.3 percent of Ce, and the balance of zinc. The zinc-barium alloy has an excellent die casting performance, and can be used for growing a long thin-wall parts. In addition, during a die casting process, a cold chamber can be adopted for casting, so thatthe production efficiency is greatly improved, and the energy consumption is reduced. The obtained product is widely used in an electric appliance manufacturing industry and a radio industry.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a zinc-barium alloy. Background technique [0002] In our country, zinc is one of the main metals that are focused on the development of non-ferrous metal industry. my country's zinc resource reserves are very rich, and it can also be exported in large quantities while meeting domestic demand. And replacing copper alloy and aluminum alloy with zinc alloy is of great significance in terms of saving energy, reducing material costs and rationally allocating domestic resources. With the continuous emergence of new die-casting technology, die-casting parts are no longer limited to the automobile industry and instrument industry, but gradually expanded to industries such as electronics industry and daily hardware. The main uses of zinc alloy castings in my country are toys (car models), daily hardware (handles, locks, sanitary ware), zippers, instrument parts and wear-resistant parts ...

Claims

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Application Information

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IPC IPC(8): C22C18/00C22C1/02C22F1/16C22F1/02
CPCC22C18/00C22C1/02C22F1/02C22F1/165
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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