Stainless steel thermos cup: made of inside and outside double layer stainless steel, the welding technology is used to integrate the inner container and the shell, and then vacuum technology is used to extract the air from the sandwich and the shell to achieve the vacuum insulation effect.
1, shell processing of outer tube material cutting tube bulging section and bulging roll angle - bottom shrinking cutting bottom - Screed - Flat - bottom - flat mouth mouth - cleaning and drying - Test - pit on qualified housing
2, inner shell processing flow (there are two kinds, this process is the sense of flow. The other one is stamping, but the limitations of the stamping) inner tube material cutting pipe - flat tube bulging roll angle and flat flat mouth - upper - thread rolling - Test - pit cleaning and drying - knock - drying - Leak - butt welding test qualified liner
3, the outer shell and the inner shell assembly process with cup - welding pressure in bottom - bottom welding welding welding inspection - bottom - bottom - vacuum - getter welding temperature - electrolysis polishing - temperature - pressure - Test - polishing outer bottom paint - temperature - Test - Sampling - Product - packaging printing paint storage
A brief description of the processing technology:
1, pipe cutting: lathe, according to "cut the pipe work instructions" implementation, request size accurate, timely detection of bad products, scrap, operation to avoid pits, pits, pits, scrap.
2, water expansion: water expansion press, according to the "water expansion operation instruction", requires attention, always pay attention to the product pit, size, shape meet the requirements.
The 3 section:, car dashboard, put a water swelling out two of the two shell cut, require accurate size, cut evenly, no gap, burr, gently to avoid pits, pits, pits, scrap.
4, bulging: large hydraulic press can be executed according to "water expansion operation instruction", which requires attention. It is corresponding to the joint of the shell and the mould, and we should always pay attention to whether the pit, size and shape of the product meet the requirements.
5, in the roll angle: lathe, the two side concave shape by bulging shell angle of the roll to meet the size requirements, to avoid pits, pits, pits, scrap.
6, shrink the bottom: using a lathe, specific according to "necking operation guidance book" execution. 把通过胀形外壳圆弧底口缩至符合尺寸要求，避免产生凹坑、凹点、麻点、报废品。
7, cut the end: lathe, the bottom of the shell bottom shrinkage mouth cut to standard size, cut evenly, no gap, burr, gently, avoid pits, pits, pits, scrap.
8, ribs: on the small press, the welding seam at the mouth of the shell is compressed, and the welding joint will not be welded, so that the weld is smooth and uniform.
9, the shell flat flowing: lathe, flat, uniform, non notched edges, to meet the requirements, gently, avoid pits, pits, pits, scrap.
10, flush the bottom: use the press to concentrate attention, always pay attention to the pits, size and shape of the products meet the requirements, especially pay attention to whether there are cracks at the bottom of the stamping.
11, flat mouth: car dashboard, flat mouth uniform, no gap, flash, in accordance with the requirements, gently, avoid pits, pits, pits, scrap.
12, flat tube: car dashboard, a flat head pipe, flat, uniform gap, no burr, to meet the requirements; handle gentlyand avoid pits, pits, pits, scrap.
13, roll angle: the lathe, the bulging liner protruding good corner rolling to meet the size requirements, gently, avoid pits, pits, pits, scrap.
14, liner: car dashboard, flat head flat, uniform, non notched edges, to meet the requirements; handle gentlyand avoid pits, pits, pits, scrap.
15, thread rolling: with special thread machine, thread rolling "according to specific instructions" implementation requirements focus, adjust thread depth meets the size requirements; handle gentlyand avoid pits, pits, pits, scrap.
16, cleaning and drying the liner, shell clean and dry; gently, avoid pits, pits, pits, scrap.
17, inspection: inspection pit knocked the inner container and the outer shell is qualified, there is concave, concave points to meet the requirements of flat, gently.
18, butt welding: welding the inner and inner bottom, according to the guide book of the welding operation, the weld seam is smooth, no loophole and no pit.
19, test water leak detection: to weld the good inside the tank to test the water, there are no holes in the weld, no leakage to be qualified.
20, with the cup: the inner container and the outer shell together, cup of peace; gently, avoid pits, pits, pits, scrap.
21, the weld welding bottom: according to specific welding welding process at the end of "work instruction", required to ensure the weld penetration and bottom smooth, non convex and concave, beading and leakage of solder joints.
22: in the bottom spot welding and spot welding on the getter, attention must be on the go getter spot welding effect of vacuum in 24 hours is good, otherwise it will be invalid.
23, the pressure in the end: the mouth of the cup is pressed on the welding spot on the getter in the bottom, and the bottom opening pressure level.
24. The weld bottom of the weld: check the cup at the bottom of the weld and pick out whether there is a cup with leakage welding, bad cup welding or other bad reasons.
25. Vacuum pumping: tail free vacuum, strictly according to the standard of vacuum operation