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Imitation metal back plate of refrigerator and processing technology of imitation metal back plate

A processing technology, imitating metal technology, applied in the direction of fibrous filler, layered products, dyed low molecular organic compound treatment, etc., can solve the problem that the refrigerator cannot meet the fire rating requirements of the back panel, the surface of the PVC panel does not have metallic luster, and the surface layer The structure is easy to fall off when heated, so as to meet the export requirements, the metal gloss is strong, and it is not easy to fall off.

Pending Publication Date: 2022-01-28
合肥晨乐塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The material of the refrigerator backboard in the prior art has been replaced by metal and plastic, and PVC board is mainly used, but the surface of PVC board does not have metallic luster. When it is applied to the refrigerator backboard, its appearance is not as good as that of metal. Surface treatment, the existing technology mainly adopts aluminum plating and spraying metal pigments, but the surface structure after aluminum plating and spraying is easy to fall off when heated, and is easy to be scratched at the same time; and the resistance of the PVC sheet obtained only by aluminum plating and spraying The highest flammability level can only reach the V-2 level, which cannot meet the fire level requirements of the refrigerator for the back panel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Spray the aluminum powder pigment on the lower surface of the PVC transparent film, so that the pigment is discontinuously distributed on the lower surface of the surface film, and obtain a 20um thick imitation metal film;

[0022] In parts by weight, 90 parts of PVC resin, 1.2 parts of titanium dioxide, 4.5 parts of MBS reinforcing agent, 0.6 parts of ACR, 1 part of methyl tin stabilizer, 0.1 part of external lubricant, 0.2 parts of internal lubricant, 0.1 part of calcium stearate The parts are stirred and mixed evenly, sent to the extruder for plasticization and extrusion, and the extruded base material is sent to the calender, and the substrate is obtained after calendering; the side of the imitation metal film sprayed with aluminum powder and the substrate are heated at 160°C Next, use a composite roller for compounding. The composite roller is an embossing roller. When the imitation metal film and the substrate are compounded, an embossed pattern is formed on the su...

Embodiment 2

[0025] Spray the pigment with metallic luster on the lower surface of the PE transparent film, so that the pigment is discontinuously distributed on the lower surface of the surface film to obtain a 50um thick imitation metal film;

[0026] By weight, 100 parts of PVC resin, 1.8 parts of titanium dioxide, 5.5 parts of MBS reinforcing agent, 1.2 parts of ACR, 1.5 parts of methyl tin stabilizer, 0.5 parts of external lubricant, 0.5 part of internal lubricant, calcium stearate 0.1 part is stirred and mixed evenly, sent to the extruder for plasticization and extrusion, and the extruded base material is sent to the calender, and the substrate is obtained after calendering; the side of the imitation metal film sprayed with pigment and the substrate are heated at 180°C The composite roller is used for compounding. During the compounding process, the imitation metal film is stretched to 1.2 times. The compound roller is an embossing roller. When the imitation metal film and the substra...

Embodiment 3

[0029] Electroplate the pigment with metallic luster on the lower surface of the PP transparent film, so that the coloring powder is discontinuously distributed on the lower surface of the surface film, and a 40um thick imitation metal film is obtained;

[0030] In parts by weight, 95 parts of PVC resin, 1.6 parts of titanium dioxide, 5.0 parts of MBS reinforcing agent, 1.0 parts of ACR, 1.2 parts of methyl tin stabilizer, 0.3 parts of external lubricant, 0.4 parts of internal lubricant, 0.1 part of calcium stearate The parts are stirred and mixed evenly, sent to the extruder for plasticization and extrusion, and the extruded base material is sent to the calender, and the substrate is obtained after calendering; the side of the imitation metal film sprayed with pigment and the substrate are heated at 170°C Composite rollers are used for compounding. During the compounding process, the imitation metal film is stretched to 1.2 times. The compounding roller is an embossing roller....

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PUM

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Abstract

The invention discloses a processing technology of an imitation metal back plate of a refrigerator, wherein the processing technology comprises the following steps: S1, compounding coloring powder on the lower surface of a surface layer film to obtain an imitation metal film with the thickness of 20-50 [mu]m; S2, uniformly stirring and mixing the raw materials of a base material, feeding into an extruder, plasticizing and extruding, feeding the extruded base material into a calender, and calendering to obtain a base plate; S3, compounding the imitation metal film and the base plate through a composite roller at the temperature of 160-180 DEG C, then feeding into a plastic suction machine, and after forming, slitting, to obtain an imitation metal plate; S4, attaching an aluminum foil to the other side face of the imitation metal plate, and forming a back plate blank; and S5, punching and bending the back plate blank, and then welding and assembling the back plate blank. The defects in the prior art are overcome, the appearance metal glossiness of the imitation metal back plate of the refrigerator is high, the imitation metal film is firmly compounded on the surface of the base plate, coloring powder is not prone to disengagement, and the fireproof grade is high.

Description

technical field [0001] The invention relates to the technical field of an imitation metal backboard of a refrigerator, in particular to an imitation metal backboard of a refrigerator and a processing technology thereof. Background technique [0002] The box of the refrigerator is composed of a backboard and a foam layer arranged on the inside of the backboard. The purpose of the foam layer is to insulate heat, that is, to reduce the transfer of cold and heat inside and outside the refrigerator, so that the cold air is not easy to come out so that the compressor can be reduced. Running time, and then achieve the purpose of energy saving. The material of the refrigerator backboard in the prior art has been replaced by metal and plastic, and PVC board is mainly used, but the surface of PVC board does not have metallic luster. When it is applied to the refrigerator backboard, its appearance is not as good as that of metal. Surface treatment, the existing technology mainly adopt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/30B32B27/32B32B27/18B32B27/20B32B27/08B32B27/06B32B33/00C08L27/06C08L51/04C08K3/22C08K5/098C09C1/64C09C3/08C09C3/12
CPCB32B27/304B32B27/32B32B27/18B32B27/20B32B27/08B32B33/00C08L27/06C09C1/646C09C3/006C09C3/08C09C3/12B32B2307/4023B32B2307/4026B32B2307/406C08K2003/2241C08K2003/0812C08L51/04C08K3/22C08K5/098
Inventor 蒋松杰
Owner 合肥晨乐塑胶有限公司
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