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Wax injection process flow

Dissolve the original wax in a stationary bucket, let it stand still at 95-98 ℃, remove any bubbles from the wax, then pack it in a can and place it in an insulated box at 54 ℃ for later use. The wax spraying staff strictly follow the process operation manual and operating procedures for production. After repairing the burrs on the pressed wax parts, they are sent to the inspection area for inspection, and the qualified products are put on the tree. The selection of the mold head is based on the process requirements of the casting workpiece. And assemble the tree according to the process requirements, and then proceed to the next step after the tree assembly is completed. Manufacturing

Mainly responsible for the production of casting molds. The company adopts advanced silica sol manufacturing technology.

Shell making process flow

The number of times the mold is coated and hung depends on the requirements of the product. After the mold is coated with slurry and sand, it needs to be dried, and the temperature and humidity of the drying room need to be strictly controlled for the drying of the mold shell. Temperature control is used to prevent wax and mold materials from expanding due to different thermal expansion rates, while humidity control is used to prevent cracking caused by low humidity and fast mold drying speed. If humidity is too high, the mold drying speed will be too slow, affecting production progress. After applying slurry and sand, it must be thoroughly dried before proceeding to the next coat of slurry and sand, otherwise it will affect the strength of the mold. After sealing and drying, remove wax. During dewaxing, the vapor pressure in the dewaxing kettle rises to above 0.45Npa within 6 seconds. To prevent swelling during the dewaxing process. After the wax removal is completed, the mold will be transferred to the next process after passing the inspection. casting

This workshop is the core workshop of the process, responsible for the casting of workpieces. The workshop has 4 high-frequency electric furnaces and 4 roasting furnaces. Casting workshop process flow

Bake the mold to a suitable temperature (T ≥ 1050 ℃) as required to enhance its strength and breathability. After the steel material is melted, add an appropriate amount of alloy according to the material requirements, slag, deoxidize, and measure the temperature. After sampling and inspecting the material composition to ensure it is qualified, proceed with casting, cool down, and switch to the next process. clear.

Name: Precision Casting Cabinet Parts

Type: Load bearing structural components

Model: 40Cr steel

Brand: Precision Casting

Customization: can be customized according to customer needs

1. Good casting quality and low cost;

2. No material limitation, suitable for all sizes;

3. Size

4. High precision, smooth surface, reduces cleaning and saves machining;

5. Significant reduction of internal defects and dense organization;

6. It can achieve large-scale and mass production. Automated assembly lines are environmentally friendly.

7. It can greatly improve the working environment, reduce labor intensity, and decrease energy consumption.

The mechanical properties of gray cast iron are related to the microstructure of the matrix and the morphology of graphite. The flake graphite in gray cast iron severely cuts the matrix, causing stress concentration at the graphite tips, resulting in much lower tensile strength, plasticity, and toughness of gray cast iron than steel. However, its compressive strength is comparable to steel, making it one of the commonly used cast iron parts with poor mechanical properties. At the same time, the matrix structure also has a certain influence on the mechanical properties of gray cast iron. The ferrite matrix gray cast iron has coarse graphite flakes, low strength and hardness, so its application is limited; The graphite flakes of pearlite matrix gray cast iron are small, with high strength and hardness, mainly used to manufacture important castings; The graphite flakes of ferrite pearlite matrix gray cast iron are slightly coarser than those of pearlite gray cast iron, and their performance is not as good as that of pearlite gray cast iron. Therefore, gray cast iron with pearlite matrix is commonly used in industry.

Clean up the process flow

The casting workpiece is vibrated and dropped by the vibration machine, and the workpiece is cut and separated from the mold head. Grind the gate to the level required by the customer in the grinding room before proceeding to the next step. renovate

Rework and shape the workpiece with the gate polished to meet the customer's requirements.

Repair process flow

Place the cleaned and transferred workpieces into the shot blasting machine for shot blasting, remove residual mold on the workpieces, and inspect them. The reworked products are inspected after air grinding, shaping, and welding repair. The reworked qualified products are pickled, sandblasted, heat-treated, and machined together with the disposable qualified products according to the process requirements. After passing the final inspection, it will be put into the finished product warehouse. processing

According to customer requirements, the parts that need to be processed are mechanically processed. The workshop is equipped with 3 automatic CNC machine tools, 12 CT0642-A precision instrument machine tools, and 4 Taiwan made tapping machines. The workpieces that need to be processed are cut, milled, drilled, threaded, and tapped according to customer requirements.