Strictly pass 11 internal control quality tests
In the process of raw materials, manufacturing, inspection and testing, and delivery, we strictly abide by the norms, do a good job in process control and issue various reports in a timely manner to analyze the root causes, so as to maintain continuous improvement and uncompromising implementation of traceability and consistency quality management norms.
We have put a lot of effort into process control and consistently and uncompromisingly implement the management practices of traceability and consistency.
1
Spectrometer detection and analysis of chemical elements
2
Mechanical performance testing
3
metallographic analysis
4
Macro Erosion Test
5
intergranular corrosion test
6
Ultrasonic testing
7
Penetration Testing
8
Magnetic Particle Testing
9
Portable direct reading optical instrument
10
Dimensional inspection
11
Appearance inspection
Remarks: The mechanical performance test includes: hardness, tensile strength, yield strength, elongation after fracture, section shrinkage, impact absorption energy, etc. The metallographic analysis includes: non-metallic inclusions, average grain size, organization, etc,
Other special tests specified by the customer, we will be in accordance with the customer's requirements, and actively cooperate with the third party inspection work.
Quality Control Flow Chart
Through the ISO9001 quality system certification
The company has established a quality system in accordance with ISO9001 standards and has obtained certificates through the audit of the certification center.
All departments of the company shall strictly implement the provisions and requirements of quality documents such as Quality Manual, Procedure Document and other technical documents of the factory, earnestly perform quality responsibilities and effectively carry out various activities.
Contract Conversion
The sales department prepares the Production Task List according to the reviewed contract, and the technical department prepares the drawings according to the contract requirements to clarify the technical requirements of the product, and formulates the blanking process, forging process and heat treatment process according to the material and performance requirements, and approves and issues them according to the requirements.
Control and verification of purchased products
Re-inspection of raw materials in the factory: after the raw materials arrive at the factory, the specifications and dimensions, surface quality and identification (mainly referring to the material and furnace number) of the raw materials shall be inspected, and the physical and chemical room shall conduct PMI inspection and mechanical performance test after passing the inspection.
production process control
The inspector shall inspect each step of the process, and the qualified products shall be transferred to the order according to the "Flow Card with Pieces" signed by the inspector, and the unqualified products shall be implemented according to the company's procedure document "Control Procedure for Unqualified Products.
1. Sawing and blanking: sawing and blanking in strict accordance with the "Blanking Task List" and making inspection records. Batch sawing can only be carried out after passing the test.
2. Heating: Products of different materials and different furnace numbers cannot be heated in the same furnace.
3. Forging: The operator shall forge according to the drawings, and the forging temperature shall be controlled by infrared thermometer during the forging process.
4, heat treatment: according to the cycle of verification of thermocouple, temperature instrument. In strict accordance with the heat treatment process provisions of the heating rate, holding temperature, holding time and other process parameters and cooling methods for treatment.
5. Car processing: production shall be carried out according to the drawings, and mass production shall be carried out after the first inspection is qualified. During the processing, the inspector conducts patrol inspection and random inspection of the processed products.
6. Pre-packaging inspection: The full-time inspector shall inspect the product size, surface quality and identification after machining strictly according to the drawings, and then conduct PMI re-inspection on the product to prevent material confusion.
7, packaging process:(1) typing: according to the "production task list" in the typing notice for typing, the first piece of self-inspection, full-time packaging inspector for the first piece of inspection, after qualified batch typing, the process of handwriting clarity for sampling, to ensure that typing clear and neat. (2) Anti-rust treatment: anti-rust treatment (oiling, dipping paint, etc.) shall be carried out according to customer requirements, operators shall conduct self-inspection according to requirements, and full-time packaging inspectors shall conduct first-piece inspection, patrol inspection and process inspection on anti-rust treatment and surface quality according to requirements, and enter the packing process if qualified, otherwise rework shall be carried out.
Control of nonconforming products
The inspector shall identify and isolate the nonconforming products, fill in the Nonconforming Disposal Sheet and submit it to the authorized personnel for handling, and strictly follow the Nonconforming Product Control Procedure to ensure that the nonconforming products are identified and controlled to prevent their unintended use or delivery.
We are a joint-stock enterprise specializing in the production of heat exchanger tube plates, flanges and forgings. We mainly produce international, national and industry standard flange tube plate forgings, as well as wind turbine tower flanges, yaw brake discs, stator pressure rings, end covers and other ring forgings.
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Cuijiazhuang Industrial Park, Dingxiang County, Xinzhou City, Shanxi Province
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