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ASIMCO Camshaft (Yizheng) Co., Ltd.
A Pioneer in Leading Clean Production —— A Record of Improving the Foundry Shot Blasting Machine
Release Date:
18-06-29
In response to the company’s call for “5S participation by all employees,” we have not only implemented improvements to the workshop’s on-site environment but also upgraded the relevant equipment. The existing shot-blasting machine in the casting workshop has been in service for many years and now suffers from numerous problems: a high failure rate, significant shot leakage during operation, low blasting efficiency, and poor blasting results. To address these issues, the company has newly introduced a shot-blasting machine that integrates online cooling of raw castings with surface cleaning. This shot-blasting machine features a chain-driven design with hanging hooks; raw castings are directly suspended on the hooks at the shaft-removal station, then conveyed along a long track for simultaneous cooling before being transferred to the blasting track. Prior to the shaft-cutting process, the castings—along with their gating systems—are blasted together. This workflow differs from our current procedure, in which raw castings are first removed and placed in batches on transfer carts, which are then pushed by operators to designated positions in sequence, followed by the shaft-cutting team moving the carts to the cutting machine to remove the gating systems, and finally subjecting the castings to shot blasting. This new process offers several advantages: first, it significantly reduces the physical workload of shaft-removal workers and minimizes the handling and transportation of raw castings; second, since the entire casting is blasted as a unit, adherent molding sand is thoroughly removed, reducing dust generation during cutting and decreasing the need to clean sand off the transfer carts; third, the gating system, which is reused as furnace charge, emerges clean after blasting, resulting in cleaner molten iron during smelting, lower slag production, reduced slag-removal labor, and lower fuel consumption—all of which contribute to more stable product performance. The introduction of this equipment not only enhances product quality but also improves the working conditions for frontline workshop personnel, aligning with current environmental protection trends.
In response to the company’s call for “5S participation by all employees,” we have not only implemented improved management of the workshop’s on-site environment but also carried out several upgrades to the associated equipment. The existing shot-blasting machine in the casting workshop has been in service for many years and now suffers from numerous issues: a high failure rate, significant shot spillage during operation, low blasting efficiency, and poor blasting results. To address these problems, the company has newly acquired a shot-blasting machine that integrates online blank cooling with surface cleaning.
This shot-blasting machine features a chain-driven design with hook-mounted billets: the raw billets are directly hung on hooks at the shaft-removal station, then conveyed along a long track while being cooled. Once they reach the shot-blasting track, the billets—still attached to their gating systems—are blasted before the shaft-cutting operation. This process differs from our current procedure, in which the billets are first removed and grouped by batch on transfer carts, the operator then pushes the carts sequentially to designated positions, the shaft-cutting personnel move the carts to the cutting machine to remove the gating systems, and finally the billets undergo shot blasting. This new process offers several advantages: first, it significantly reduces the physical workload of shaft-removal workers and minimizes billet handling; second, full-body shot blasting removes adherent molding sand, thereby reducing dust generation during cutting and decreasing the need for cleaning sand off the transfer carts; third, the gating systems, which are reused as furnace charge, emerge clean after shot blasting, leading to cleaner molten iron during smelting, lower slag production, reduced slag-removal labor, and lower fuel consumption—resulting in more consistent product performance.
The introduction of this equipment has not only enhanced product quality but also improved the working conditions for frontline workshop employees, aligning with current environmental protection trends.
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ASIMCO Camshaft (Yizheng) Co., Ltd.
Recruitment Phone:+86-514-80857900/83429619
Sales Phone:+86-514-80857906/80857907
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Email:liut@asimco-camyz.com
Address: No. 8, Shuanghuan Road, Yizheng Automotive Industrial Park, Yangzhou City, Jiangsu Province