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Process for preparing aluminium alloy damping cylinder

A production process and technology of shock-absorbing cylinders, applied in the field of aluminum alloy shock-absorbing cylinders, can solve the problems of increased opportunities for inhalation and oxidation of alloy liquid, high incidence of pores on the surface of castings, low corrosion resistance, etc. Opportunities for inhalation and oxidation, low incidence of surface porosity, and strong corrosion resistance

Inactive Publication Date: 2006-10-11
陈月丹
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Problems solved by technology

In the ordinary production process, the production of the smelting furnace is intermittent, which greatly increases the chance of inhalation and oxidation of the alloy liquid, which easily produces a large amount of waste slag and pores on the surface of the casting; in addition, the alloy liquid is treated with a common modifier. The amount of acid salt in the alloy liquid is more, which makes the occurrence of pores on the surface of the casting higher, the corrosion resistance is lower, and it is easy to produce mildew and deterioration.

Method used

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Embodiment Construction

[0021] A production process of an aluminum alloy shock absorber, the production process is:

[0022] a. Adopt ZL107 alloy and a new type of modifier composed of mechanically mixed by weight percentage of the following components:

[0023] NaCl 35%

[0024] KCl 20%

[0025] NaF 15%

[0026] Na 2 AlF 6 10%

[0027] (Al-HE 12 master alloy) 20%

[0028] b. Use a 500kg / h continuous melting furnace to melt the aluminum-silicon alloy into alloy liquid, and monitor the temperature of the alloy liquid throughout the process through thermocouples and thermometers;

[0029] c. When the temperature of the alloy liquid reaches 720-750°C, once every 4 hours, pack a new type of modifier with 0.2-0.25% of the total amount of the alloy liquid in paper and put it into a bell jar, and then press it into the center of the molten pool. Deep in the alloy liquid, slowly rotate and move until no bubbles emerge, and then ...

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Abstract

This invention relates to the aluminum alloy damping canister production for motorcycle absorber, which uses aluminum silicon alloy containing more then 6% silicon and continious furnace, and polybasic new type alternative deteropate disposal, and it uses conduct to continiously inbreathe gas N2 into the continious furnace liquid outlet; the advantage of this invention is that the surface air hole occur rate is low, corrosion resistant capability is strong, and it produces fewer waste residue.

Description

technical field [0001] The invention relates to a production process of an aluminum alloy shock absorber used for a motorcycle shock absorber. Background technique [0002] The existing production process of the aluminum alloy shock absorber used for the motorcycle shock absorber usually uses various aluminum-silicon alloys to be cast after melting, scouring and modification. The melting furnace equipment is a crucible furnace or a reverberatory furnace for batch melting, and the modification treatment is a common modification agent composed of NaCl, KCl and NaF. In the ordinary production process, the production of the smelting furnace is intermittent, which greatly increases the chance of inhalation and oxidation of the alloy liquid, which easily produces a large amount of waste slag and pores on the surface of the casting; in addition, the alloy liquid is treated with a common modifier. The amount of acid salt in the alloy liquid is more, which makes the occurrence rate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C1/06C22C21/02B22D11/14
Inventor 陈月丹
Owner 陈月丹
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