Quality Control:
Jinyuan Foring has its own inspection plan for all forged products and its processes at different stages of production.
1. Incoming Material Inspection
All the material coming to the company from different sources has to undergo the inspection and testing as per inspection plan before it goes to stores.
Raw material incoming from the approved steel mills are kept in the stock yard and 100% visual examination and spark testing is done.
Chemical, metallurgical and physical testing is also carried out as per the plan or instruction of the customer.
2. Process Inspection
Inspection is carried out at every stage of production at different stages e.g. Die Shop, Cutting Shop, Forge Shop, Heat Treatment Shop.
Each shop or processing dept has its own inspection plan to satisfy the customers’ needs depending upon the experience and expertise.
- Die Shop : Dies are checked thoroughly before dispatch for production and reports are kept in file for reference.
- Cutting Shop : All the cut pieces are checked for the required cut weight as needed to produce particular parts. The temperature of alloy steel is strictly controlled for fire cutting.
- Forge Shop : Temperature in furnace is controlled by the temperature controlled provided with each and every furnace. 100% visual hot inspection is done for forging defense, weight and at specified intervals.
- Machining:100% checking for dimensions and straightness.
- Heat Treatment: Personals responsible for the process under direct supervision of qualified metallurgies and experienced chemist and skilled workers are working as per the work instruction and inspection plan. Heat treatment furnaces are equipped with temperature indicator and controller. Certain pieces are selected from each lot of components passing through the process of heat treatment and are tested to confirm the hardness, microstructure, grain size of the lot as per need of the customer.
3. Final Inspection :
All the forged parts coming this shop are following inspection carried out as per plan.
- Visual inspection for scale pit, folds, unfeeling etc.
- Dimensional inspection : critical dimensions like thickness and references points for 1st operation at the customers end are checked 100%.
- Heat-teatment process is check as per customer requirement.
- Ultrasonic test: as per customer requirement
- Chemical and mechnical tests: as per customer requirement
- Microstructure inspeciton as per customer requirement
- Hardness test; as per customer requirement
- Layout : Some of the piece/lot are fully laid out for dimension as per the drawing before dispatch.
- Packing : Packing of the forgings and dispatches are made as per customer requirement.
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