Cold-closet making process
A production process and technology for refrigerators, which are applied to household refrigeration devices, lighting and heating equipment, household appliances, etc., can solve problems such as limited application fields, achieve good refrigeration effect, reduce production costs, and shorten the effect of the process flow
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Embodiment 1
[0021] A kind of manufacturing process of refrigerator of the present embodiment, its process step is as follows:
[0022] (1) Selection of box body and box cover material; choose a mixed polyethylene material of 90% high-density polyethylene and 10% low-density polyethylene as the material for making the box body and box cover, and the density of the high-density polyethylene is 0 .942 g / cm3, said low-density polyethylene has a density of 0.890 g / cm3;
[0023] (2) Box production: pour the materials selected in step (1) into the box mold to make the outer box. The box mold is 35cm long, 29cm wide, and 34cm high;
[0024] (3) Processing of the outer protective layer of the box; scrape the outside of the box clean with a scraper, and then paste it on the outside of the box with a 3.0mm thick Weigu heat insulation film, and then use a vacuum suction machine to suck it out for 5 seconds. 5 small air bubbles in the net membrane;
[0025] (4) Process the inner layer of the box; us...
Embodiment 2
[0028] Example 2: The difference from Example 1 is that the density of the high-density polyethylene in the step (1) is 0.955g / cm3, the density of the low-density polyethylene is 0.905g / cm3, and the box is used in the step (2). The mold is 37cm in length, 31cm in width, and 35cm in height. In step (3), use Weigu heat insulation film with a thickness of 2.0mm to stick to the outside of the box, and then use a vacuum suction machine to suck for 10 seconds to remove 10 small air bubbles in the film. , In step (4), 28 small ice bag placement grooves are drilled around the inside of the box. The size of the placement grooves is 6cm long, 3cm wide, and 8cm high. In step (6), there are 11 finger-shaped rubber locks.
Embodiment 3
[0029] Example 3: The difference from Example 1 is that the density of the high-density polyethylene in step (1) is 0.965g / cm3, the density of the low-density polyethylene is 0.915g / cm3, and the box mold is used in step (2) The length is 38cm, the width is 30cm, and the height is 36cm. In step (3), use Weigu heat insulation film with a thickness of 4.0mm to stick to the outside of the box, and then use a vacuum suction machine for 15 seconds to remove 15 small air bubbles in the film. In step (4), 30 small ice bag placement grooves are drilled around the inside of the box. The size of the placement grooves is 5cm long, 3cm wide, and 7cm high. In step (6), there are 12 finger-shaped rubber locks.
[0030] Measured through experiments, put two pieces of fresh meat of the same weight in the refrigerator of the present invention and the common refrigerator on the market, and measure the volatile salts of the fresh meat in the two refrigerators after 12, 24, 36, and 72 hours respe...
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