Processing method of fireproof aluminum-plastic plate

A processing method and technology for aluminum-plastic panels, which are applied in the field of fire-resistant aluminum-plastic panels, can solve the problems that the condensation pipe affects the condensation effect, the purity of the blank is insufficient, and the extrusion screw is stuck, and achieves the small particle size of the foam and the fireproof performance. High, high flexural strength effect

Inactive Publication Date: 2019-10-25
安徽英标新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] (2) Through the transmission design between the belt and the transmission rod, and the block on the outer peripheral surface of the conical screw is set at the same time, the large particles in the mixture are effectively squeezed, which solves the problem of extrusion equipment in the prior art. The technical problems of high noise and easy jamming of the extrusion screw;
[0007] (3) Through the cooperative design of the condensing pump, the condensing pipe and the blower, the mixture in the extrusion process is cooled in stages, and at the same time, the cooperative design of the cylinder and the sliding sleeve solves the problem of excessive temperature in the extrusion process in the prior art. High, resulting in insufficient purity of the raw material after extrusion, and the technical problems that the frost on the surface of the condenser tube is too thick to affect the condensation effect

Method used

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  • Processing method of fireproof aluminum-plastic plate
  • Processing method of fireproof aluminum-plastic plate
  • Processing method of fireproof aluminum-plastic plate

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Experimental program
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Effect test

Embodiment 1

[0034] see Figure 1-5 Shown, the present invention is a kind of processing method of fireproof aluminum-plastic panel, and this processing method comprises the following steps:

[0035] Mixing ingredients: in parts by weight, weigh 51 parts of low-density polyethylene, 5 parts of aluminum hydroxide with an average particle diameter of 50 nanometers, 40 parts of magnesium hydroxide, 1.2 parts of surface treatment agent, 2 parts of interface modifier The anti-oxidant of additive, the lubricant of 0.6 part, 0.2 part is added in internal mixer and kneaded, obtains the mixture that mixes evenly after banburying;

[0036] Extrude the billet: first put the kneaded mixture into the discharge pipe 13, the mixture enters the barrel 11 through the square key groove 12, the condensation pump 21 cools the inside of the condensation box 4 through the condensation pipe 22, and the cold air passes through the water absorption layer 20 enters the fixed mold shell 14, and the blower 16 discharg...

Embodiment 2

[0042] A method for processing a fireproof aluminum-plastic panel, the processing method comprising the following steps:

[0043] Mixing ingredients: in parts by weight, weigh 35 parts of high-density polyethylene, 25 parts of aluminum hydroxide with an average particle size of 1.2 microns, 30 parts of magnesium hydroxide, 5 parts of zinc borate, and 2 parts of surface Treatment agent, 2 parts of interface modifier, 0.1 part of lubricant, and 0.9 part of light stabilizer were added to the internal mixer and kneaded for 30 minutes. After banburying, a uniformly mixed mixture was obtained, and the remaining steps were the same as in Example 1;

[0044] The core material density of the fireproof aluminum-plastic panel of embodiment 2 is 0.95g / cm 3 , the tensile strength of the core material is 12.1MPa, the bending strength of the core material is 14.5MPa, the thermal conductivity of the core material is 0.04W / (M.k), and the fire performance is B1.

Embodiment 3

[0046] A method for processing a fireproof aluminum-plastic panel, the processing method comprising the following steps:

[0047] Batching internal mixing: in parts by weight, weigh 44 parts of ethylene-vinyl acetate copolymer, 1 part of aluminum hydroxide with an average particle diameter of 0.5 micron, 50 parts of magnesium hydroxide, 1 part of surface treatment agent, 3 parts of interface modifier, 0.7 parts of lubricant, and 0.3 parts of antioxidant were added to a 130°C internal mixer and kneaded for 30 minutes. After banburying, a well-mixed mixture was obtained. The rest of the steps were the same as in Example 1.

[0048] The core material density of the fireproof aluminum-plastic panel of embodiment 3 is 1.2g / cm 3 , the tensile strength of the core material is 17.7MPa, the bending strength of the core material is 16.3MPa, the thermal conductivity of the core material is 0.07W / (M.k), and the fire performance is B1.

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Abstract

The invention discloses a processing method of a fireproof aluminum-plastic plate. The processing method of the fireproof aluminum-plastic plate comprises the steps of perform banburying on materials,extruding blanks, roller-coating and compounding, performing cold roller calendaring as well as performing fixed-length cutting. Through addition of a foaming agent aluminum hydroxide, a flame retardant synergist, a surface treating agent, an antioxidant, a lubricating agent, an interface modifier and a light stabilizing agent, the technical problems in the prior art of insufficient tensile strength, bending strength and heat-conducting coefficient of the fireproof aluminum-plastic plate are solved; through design of transmission between a belt and a transmission rod and a stop block arrangedon the outer circumferential surface of a conical screw rod, large particles in the mixture are effectively extruded and the technical problems in the prior art that noise generated in the equipmentworking process is big and the extruding screw rod is liable to jam are solved; and through cooperative design of a condensing pump, a condensing pipe and an air blower, the mixture in the extruding process is subjected sectional type cooling, so that the problem in the prior art that the purity of the blanks after extrusion is insufficient caused by too high temperature in the extruding process is solved.

Description

technical field [0001] The invention relates to the technical field of fireproof aluminum-plastic panels, in particular to a processing method for fireproof aluminum-plastic panels. Background technique [0002] Casualties and property losses caused by building fires have risen sharply in recent years, and the country has also increased the flame-retardant and fire-resistant requirements for building materials. The decorative materials for the exterior walls must meet a certain fire rating. Due to the advantages of light weight, corrosion resistance, and heat insulation, aluminum-plastic panels have been rapidly developed as a building decoration material. [0003] The patent document (CN02113998.9) discloses a halogen-free flame-retardant polyethylene core layer material for fireproof aluminum-plastic panels and its preparation method. The fireproof aluminum-plastic panels obtained by the preparation method have tensile strength, bending strength, thermal conductivity, Fi...

Claims

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Application Information

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IPC IPC(8): B29D7/01B29C48/00B29C48/07B29K105/00
CPCB29D7/01B29C48/0011B29C48/0022B29C48/07B29K2105/0005B29K2105/0044B29K2105/0026
Inventor 申建
Owner 安徽英标新材料科技有限公司
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