Citic Dicastal Co., Ltd

Tieqiang Chen

Lixin Huang

Meng Li

Zuo Xu

Qingzhu Zhang

Zhihua Zhu

Hanqi Wu

Liguang Xie

Chunhai Liu

Dan Yao

Jingru Shen

Jinwei Liu

Decai Kong

Xiusong Dong

An aluminum alloy material smelting device comprises a furnace and a packing device with a packing basket, a stirring shaft connected with the packing basket and a stirring head connected with the bottom of the packing basket. The stirring head comprises a plurality of stirring blades with one end connected with the bottom of the packing basket and another end connected with each other on the central axis of the packing basket. The side wall of the packing basket is provided with a liquid passage hole to exchange liquid with the solution outside the packing basket. By rotating the stirring head, a solution vortex accelerating the diffusion of added elements can be formed only under the stirring head, which will not damage the covering film formed on the surface of aluminum alloy. Thus the scum on the surface is effectively prevented from being involved in the solution again.

Aluminum alloy material smelting device

The disclosure discloses a method for manufacturing special purpose vehicle wheels by using 7000 series aluminum alloys, comprising the following steps: step 1, smelting 7000 series aluminum alloys in a smelting furnace; step 2, making the solution obtained in step 1 into an aluminum alloy ingot blank through a spraying and forming process; step 3, extruding the aluminum alloy ingot blank of step 2 to obtain an extrusion bar; step 4, sawing the extrusion bar into blanks and heating them; step 5, rolling the blank into a cake; step 6, putting the cake into a press for forging and forming; step 7, spinning and forming the wheel rim. The wheel manufactured by the method for manufacturing special vehicle wheels with 7000 series aluminum alloys in the present disclosure has high and stable conductivity, qualified impact test and good bending and radial fatigue performance.

Method for manufacturing special vehicle wheels with 7000 series aluminum alloy

The disclosure discloses a magnesium alloy for wheels, comprising in mass percentage: Al: 2-3.0 wt. %; Zn: 0.5-1.0 wt. %; Mn: 0.3-0.5 wt. %; Ce: 0.15-0.3 wt. %; La: 0.05-0.1 wt. %, the balance is Mg. The magnesium alloy of the present invention takes Al element and Mn element as main alloying elements, supplemented by trace Ce and La elements as alloying process, and the nano-scale Mn-rich precipitated phase obtained during homogenization and the segregation of rare earth elements Ce and La at the interface and grain boundary of Mn-rich precipitated phase are used to inhibit the coarsening during extrusion and forging, so as to improve the strength and plastic deformation ability of the alloy.

Magnesium alloy for wheel and preparation method thereof

The disclosure discloses a method of producing a magnesium alloy wheel hub, comprises the following steps: step 1, heating a magnesium alloy bar to 350-430&#xb0; C. and keeping the temperature for 20 minutes; step 2, initially forging and forming the bar under a forging press, the forging speed is 6-15 mm/s; step 3, finally forging and forming the bar under a forging press, and the forging speed is 5-8 mm/s; step 4, testing the microstructure and material properties of the final forged blank to obtain the layered material property distribution on the thickness of the blank; step 5, according to the layered material property distribution on the thickness of the blank obtained in step 4, selecting the part that meets the requirements to make a magnesium alloy wheel hub. According to the different properties in the thickness direction of the blank, the spoke orientation of the magnesium alloy wheel can be quickly designed according to the needs, and the magnesium alloy wheel that meets the usage performance can be obtained, which greatly improves the design and processing efficiency.

Method of producing a magnesium alloy wheel hub

The disclosure discloses the forging process of a magnesium alloy wheel hub comprises the following steps: step 1, heating a magnesium alloy bar to 350-420&#xb0; C. and keeping the temperature for 20 minutes; step 2, forging and forming the bar under a 6000-ton forging press, and controlling the forging process in sections. The forging process of the disclosure adopts sectional control, different forging process parameters are adopted in different forging stages, so that magnesium alloy bars can exert maximum forgeability in different deformation stages, make magnesium alloy deformation process more continuous, make forging process easier, obtain forged magnesium alloy wheel hub with excellent properties, and greatly improve forging process and processing efficiency.

Forging process of magnesium alloy wheel hub

A thermal treatment and shot peening method for a wheel, including: heating a wheel blank to T1, and preserving the heat for t1; fast heating the wheel blank to T2, and preserving the heat for t2; performing quenching treatment, wherein a quenching medium is at temperature of T3, and the quenching transfer time is t3; performing aging treatment at aging temperature of T4, and preserving the heat for t4; performing first-stage shot peening; and performing second-stage shot peening.

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Qinhuangdao, China

Tieqiang Chen