What are the specific production requirements in the vacuuming process of stainless steel thermos cups?

The vacuuming process of stainless steel thermos cups is one of the key steps in manufacturing high-performance thermos cups. By vacuuming, a low-pressure environment can be formed between the inner and outer walls of the thermos cup, reducing heat conduction and transfer, thereby improving the insulation effect. The following are the general production requirements for the vacuuming process of stainless steel thermos cups:

1. Material selection: In the manufacturing process of the thermos cup, high-quality stainless steel materials need to be selected, usually food-grade 304 stainless steel is used to ensure the safety and durability of the product.

2. Inner tank and outer shell assembly: The thermos cup usually consists of an inner tank and outer shell. Before the vacuuming process, the inner tank and outer shell must be strictly assembled to ensure excellent sealing performance.

3. Vacuum pump equipment: The vacuuming process requires special vacuum pump equipment. Ensure that the performance of the vacuum pump is stable and the vacuum degree is high enough to achieve an effective vacuuming effect.

4. Vacuum degree control: During the vacuuming process, the vacuum degree needs to be strictly controlled. Too high or too low vacuum may affect the insulation effect. During the production process, the appropriate vacuum range needs to be determined based on product specifications and requirements.

5. Vacuum sealing: After extracting enough vacuum, vacuum sealing is required to ensure that there will be no air leakage. The quality of vacuum sealing is related to the stability of the thermal insulation effect.

6. Cooling treatment: After vacuuming, the thermos cup needs to be cooled to return its temperature to normal ambient temperature while further consolidating the insulation effect.

7. Quality inspection: After completing the vacuuming process, the thermos cup needs to be inspected for quality, including vacuum degree testing, sealing testing, etc., to ensure that the product meets the design and specification requirements.

8. Cleaning and packaging: Finally, after strict cleaning and packaging, ensure that the stainless steel thermos cup is kept clean and tidy before leaving the factory, and is ready for subsequent sales and use.

The vacuuming process is one of the important steps in manufacturing high-quality stainless steel thermos cups. During the entire production process, process parameters need to be strictly controlled to ensure the quality of each link to produce products with excellent performance and excellent thermal insulation effects.