Pickling mixed-flow production process for glossy aluminum alloy wheel

Abstract

The invention discloses a pickling mixed-flow production process for a glossy aluminum alloy wheel, and belongs to the technical field of aluminum alloy hub machining. According to the pickling mixed-flow production process for the glossy aluminum alloy wheel, a glossy aluminum alloy hub is fixed to the uppermost portion of a support through hooks during use, and then two common aluminum alloy hubs are fixed to the lower portion. A plurality of groups of supports are subjected to assembly line type machining treatment in a catenary driving mode, a mode of isolating the common aluminum alloy hubs from the glossy aluminum alloy hub is adopted in a high-concentration pickling chamber, the common aluminum alloy hubs are machined, meanwhile, pure water is sprayed to the surface of the glossy aluminum alloy hub for protection. Compared with the traditional process that two pretreatment production lines are adopted in the existing aluminum alloy wheel industry to treat glossy aluminum alloy wheels and common aluminum alloy wheels correspondingly, the equipment investment is saved, the occupied area of the production lines is greatly reduced, meanwhile, the production efficiency is improved, and meanwhile the production quality is guaranteed in cooperation with a pure water protection mode.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy wheel hub processing, in particular to a pickling and mixed-flow production process for bright aluminum alloy wheels. Background technique [0002] Aluminum alloy wheel pretreatment line: Aluminum alloy wheels are fixed on the hook with rim contact, and are transported to the pretreatment production line through the hanging chain. The pretreatment line mainly consists of degreasing, water washing, pickling, water washing, passivation, water washing and drying The composition of the process, under the action of the pre-treatment line, the oil stains on the surface of ordinary aluminum alloy wheels and bright aluminum alloy wheels are thoroughly cleaned, and at the same time, under the treatment of pickling and passivation, the surface of the wheels is given a layer to improve the adhesion of the paint film The thin film is convenient for powder coating to adhere to the surface of aluminum al...

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Problems solved by technology

[0002] Aluminum alloy wheel pretreatment line: Aluminum alloy wheels are fixed on the hook with rim contact, and are transported to the pretreatment production line through the hanging chain. The pretreatment line mainly consists of degreasing, water washing, pickling, water washing, passivation, water washing and drying The composition of the process, under the action of the pre-treatment line, the oil stains on the surface of ordinary aluminum alloy wheels and bright aluminum alloy wheels are thoroughly cleaned, and at the same time, under the treatment of pickling and passivation, the surface of the wheels is given a layer to improve the adhesion of the paint film The thin film is convenient for powder coating to adhere to the surface of aluminum alloy wheels. The existing aluminum alloy wheel industry adopts two pre-treatment production lines to process bright aluminum alloy wheels and ordinary aluminum alloy wheels respectively. +spraying topcoat+spraying varnish", in order to improve the three-dimensional effect of the aluminum alloy wheel, the spokes of the visible surface of the wheel are partially processed by CNC turning, and then go through "pre-treatment, spraying bright powder, spraying varnish" again, while ordinary wheels only It is the first time after casting machine processing to undergo "pre-treatment, powder spraying, top paint spraying, and varnish spraying". Therefore, the surface conditions of the two types of wheels are different, and acid solutions of different concentrations are required for spray cleaning. Among them, in the current production process Two independent pre-processing production lines are used between bright aluminum alloy wheels and ordinary aluminum alloy wheels to process bright aluminum alloy wheels and ordinary aluminum alloy wheels respectively, which makes the equipment investment large and takes up a lot of production space

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