CN102767668A

CN102767668A - Cold insulating material and production method thereof

Info

Publication number: CN102767668A
Application number: CN2012102439476A
Authority: CN
Inventors: 白景魁
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-07-13
Filing date: 2012-07-13
Publication date: 2012-11-07

Abstract

The invention relates to a cold insulating material and a production method of the cold insulating material, namely, a semi-carbonized soft wood brick and the production method of the semi-carbonized soft wood brick, belonging to the technical field of a soft wood product. The semi-carbonized soft wood brick series are baked by soft wood cork at high temperature. The semi-carbonized soft wood brick as the cold insulating material of a refrigeratory is large in compression strength, low in thermal coefficient, good in cold insulating performance, long in serviceable cycle and free from odor, and is a good environment-friendly cold insulating material.

Description

A kind of cold insulation material and production method thereof

Technical field

The present invention relates to a kind of cold insulation material and production method thereof, this cold insulation material is the partial carbonization cork brick, belongs to the cork article production technical field.

Background technique

The product of cork article is to be the product of main raw material with the cork cork, the partial carbonization cork brick is generally arranged, cork paper, cork pad, cork ball etc.Wherein the partial carbonization cork brick belongs to cold insulation material.Other cold insulation material has polyurethane rigid plastics (PUR), PIC (PIR), multi cellular glass etc.Freezer is in one's early years used without the pure cork cork of partial carbonization and is done cold insulation material, though compressive strength is high, the cold insulation layer is prone to dew outward, and water molecule is prone to the cold carrier diffusion inside, the cold insulation weak effect.Other cold insulation material such as polyurethane rigid plastics (PUR), PICs (PIR) etc. have been grown easy to be aging service time; Cause the cold insulation layer to be prone to dew outward, water molecule also is prone to the cold carrier diffusion inside, and the cold insulation effect descends year by year; And the genus petrochemicals, environmental-protecting performance is poor.

Summary of the invention

The disclosed a kind of cold insulation material of the inventive method is the partial carbonization cork brick, and its thermal conductivity is low, and compressive strength is high; The cold insulation effect is good, and is extremely ageing-resistant, through long-term service test; The cold insulation effect seldom reduces, and the partial carbonization cork brick is that vegetal cork cork cures and forms, and belongs to environment-friendly products.

The production method of partial carbonization cork brick is such:

1. be that cork cork more than the 8mm is put into the particle that shredder is processed into diameter 8～25mm with the thickness of drying.

2. seal after cork cork particle being put into about 1/3rd volumes of mould compression made of iron; Put into tunnel kiln back warp temperature then and be respectively 880～920 ℃; 480～620 ℃, cure 2h under three temperature sections of 200～320 ℃, cool behind the 0.5h depanning behind the kiln discharge naturally.

The partial carbonization cork brick of producing with the inventive method is and exhausts black, and surface compact innerly forms countless independent sealed separately micropores, thereby thermal conductivity is very low, is good cold insulation material.

Embodiment

The production method of concrete partial carbonization cork brick is such:

1. build production line by the technological process of pulverizing-measuring-compressing-advance kiln-tunnel kiln-kiln discharge-cool, capital equipment has: shredder, 100 volumes are 0.92 * 0.32 * 0.05 cubic metre swage tool; The 100T moulding press advances the kiln machine, preceding transition car; The two kitchen range hall tunnel kiln of 30m; Back transition car, kiln outer guide, front and back tractor.

2. the workman puts into the particle that shredder is broken into diameter 8～25mm to dry cork cork, then the cork cork particle behind the volume metering is put into mould made of iron, seals after compressing about 1/3rd volumes with the 100T moulding press again; By the transition car; Advancing the kiln machine sends into the swage tool with anthracite and does to be respectively 880～920 ℃ through temperature, 480～620 ℃ in the two kitchen range hall tunnel kiln of fuel; Cure 2h under three temperature sections of 200～320 ℃, cool behind the 0.5h depanning behind the kiln discharge naturally.

Claims

1. cold insulation material and production method thereof is characterized in that this cold insulation material is the partial carbonization cork brick, are to cure under the condition of high temperature with the cork cork to form.

2. a kind of cold insulation material according to claim 1 and production method thereof is characterized in that used cork cork is that thickness is that 8mm is above, and diameter is the particle about 8～25mm.

3. a kind of cold insulation material according to claim 1 and production method thereof is characterized in that putting into mould sealing made of iron back to the cork cork cures under the condition of high temperature.

4. a kind of cold insulation material according to claim 3 and production method thereof is characterized in that putting into the high temperature that in tunnel kiln, produces behind the mould made of iron to the cork cork cures and form.

5. a kind of cold insulation material according to claim 4 and production method thereof is characterized in that putting into the cork cork behind the mould made of iron that temperature is respectively 880～920C in tunnel kiln, and 480～620C cures under three temperature sections of 200～320C.