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Method for sticking vacuum thermal insulation slabs and method for producing incubator internally comprising vacuum thermal insulation slabs

A technology for vacuum insulation panels and heat preservation boxes is applied in the field of sticking vacuum insulation panels and making heat preservation boxes containing vacuum insulation panels, which can solve the problems of mounting that are not suitable for high temperature protection, high price of double-sided tape, poor heat insulation, etc. , to achieve the effect of easy operation, convenient material acquisition and good fit

Active Publication Date: 2014-03-12
FUJIAN SUPERTECH ADVANCED MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The method of pasting with double-sided tape has the following disadvantages: 1. The price of double-sided tape is high, about 50 yuan / square meter
Taking a refrigerator as an example, a 1.5-2 square meter VIP needs to be installed in the case of a refrigerator. As a process auxiliary material for non-functional materials, each refrigerator will increase the cost by 75-100 yuan, which is obviously too wasteful.
2. The thickness of the colloid of the double-sided adhesive is less than 0.2 mm. The unevenness of the pasting surface will cause the existence of pasting gaps. It is impossible for the two pasting surfaces of the same rigid body to be completely bonded by the colloid of the double-sided tape
[0007] The method of pasting with hot melt adhesive has the following disadvantages: 1. The softening temperature of hot melt adhesive is mostly lower than 100°C, usually between 50-100°C, which is not suitable for high temperature protection mounting
2. The thermal conductivity of hot melt adhesive is about 0.1, and the thermal insulation is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embed VIP in a double-door refrigerator box, choose to paste VIP on the outside of the refrigerator and freezer to form independent inner and freezer parts with heat preservation functions, and then combine with other box shells Part of the box shell enters the secondary foaming to form an insulated box. Among them, the VIP used on the five sides of the refrigerating chamber is selected in this way: the left and right sides of the refrigerating chamber with ribs respectively adopt a single VIP plate in the shape of "one"; the top, back, and The bottom three sides adopt continuous "U"-shaped VIP integrated board. For specific operations, follow the ideas and steps below:

[0029] One of the parts that make up the refrigerator case - the liner, is a plastic-molded product. The surface of multi-channel ribs is uneven, and the concave-convex inflection point and its weak points are caused by the limitation of process characteristics during molding. It is necessary to pre-...

Embodiment 2

[0047] Mount the VIP on the inner side of the shell side plate of the air-cooled refrigerator. The inner side of the shell side plate of the air-cooled refrigerator is evenly distributed with condensation pipes. Although the mounting surface is flat and easy to operate, the uniformly distributed condensation pipes on it It is easy to form a spraying dead angle at the head.

[0048] When mounting, spray the stirred first polyurethane foam on the inner surface of the side panel of the refrigerator shell in the atmospheric environment, or smear and mix the first polyurethane foam on the inner surface of the side panel of the refrigerator shell in the atmospheric environment , while smearing or spraying the first polyurethane foam on the inner surface of the outer panel or after coating and spraying, after the first polyurethane foam rises and within the non-stick time, apply the VIP on the first polyurethane On the surface of the foaming material, as the first polyurethane foamin...

Embodiment 3

[0052] Mount VIP on the outer panel of a direct cooling refrigerator. There is no condensation pipe on the side plate of the shell of the direct-cooling refrigerator, and the mounting surface is flat and easy to operate.

[0053] When mounting, spray the stirred first polyurethane foam on the inner surface of the side panel of the refrigerator shell in the atmospheric environment, or smear and mix the first polyurethane foam on the inner surface of the side panel of the refrigerator shell in the atmospheric environment , while smearing or spraying the first polyurethane foam on the inner surface of the outer panel or after coating and spraying, after the first polyurethane foam rises and within the non-stick time, apply the VIP on the first polyurethane On the surface of the foaming material, as the first polyurethane foaming material is drawn and solidified in the atmospheric environment, the generated first polyurethane foam sticks the VIP on the inner surface of the shell s...

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Abstract

The invention discloses a method for sticking vacuum thermal insulation slabs and a method for producing an incubator internally comprising the vacuum thermal insulation slabs. The method for sticking vacuum thermal insulation slabs comprises the steps as follows: firstly, stirred polyurethane foaming materials are sprayed on the surface of a stuck substance, or the polyurethane foaming materials are mixed on the surface of the stuck substance under an atmospheric environment; the parameters of the polyurethane foaming materials in weight portions are as follows: isocyanate to polyether polyol is equal to 1-1.8 to 1; the non-sticky time of foams is 10-360s; and the density of the foams is 10-100kg / m3; and secondly, the vacuum thermal insulation slabs are paved on the surfaces of the polyurethane foaming materials in a non-sticky time after the polyurethane foaming materials are initiated; and the vacuum thermal insulation slabs are stuck on the surface of the stuck substance by the generated polyurethane foams.

Description

technical field [0001] The invention relates to a pasting method and a method for making an incubator. Background technique [0002] In the home appliance industry such as refrigerators, water heaters, and rice cookers, the superior thermal insulation performance of vacuum insulation panels (VIP) has been recognized and adopted. How to embed VIP in the airtight cavity of an incubator that needs heat insulation, the construction techniques adopted by various manufacturers are as follows: [0003] (1) Use double-sided tape to stick the VIP on the outer panel of the shell of the incubator to form a part with VIP; assemble the part with VIP with other plates of the shell of the incubator to have a The casing of the airtight cavity in which the VIP is located. The stirred polyurethane foam material is injected into the cavity of the incubator shell, and the polyurethane foam material undergoes overall foaming through a certain (140-160bar) foaming pressure within a fixed shape ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C65/52
Inventor 王传玉冉科辉罗佛泉
Owner FUJIAN SUPERTECH ADVANCED MATERIAL
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