CN1389424A

CN1389424A - Production process of mica plate

Info

Publication number: CN1389424A
Application number: CN 01114512
Authority: CN
Inventors: 司马亮和; 司马上
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-05
Filing date: 2001-06-05
Publication date: 2003-01-08

Abstract

The production process of mica plate includes the following steps: using various natural mica scrap or mica slag and mica powder as raw material, making them into paste, directly-forming, gumming, over-drying, pressing, heating and solidifying to produce mica plates with different types and speciofications. Said ivnention changes the existent paper-plate seprated production process, and can reduce its production cost and raise its production quality.

Description

Production process of mica plate

The present invention relates to a kind of is the hot-forming product technique field of feature with the composition, refers in particular to a kind of production process of mica plate.

Up to now, the method of producing plate mica still earlier mica is caused mica paper and then with mica paper by rewinding, packing is transported to plate mica factory and is produced plate mica, the production method of this partition type, cause the production cost of plate mica too high, and quality product be difficult to control, index can't improve the quality; What is more important can make the waste recovery rate in micaceous utilization ratio and the technological process reduce according to the method, makes the plate mica exploitation because of depending on the deficient long-range raw material sources of mica paper unduly; The water consumption of producing mica paper in addition is excessive, and too high to water quality requirement, is unfavorable for environmental protection and saves the water source.

The present invention promptly is a kind of new production process of mica plate that proposes at above-mentioned defective, and its purpose is to use this technology can reduce the production cost of plate mica, can improve the quality of plate mica simultaneously again.

The present invention is achieved in that a kind of production process of mica plate, and this technology is finished by the following step:

A, choose mica flake or powdery mica and rinse well standbyly, wherein mica flake adopts the trommel screen flushing, and the powdery mica adopts the cyclone classification mode to wash,

B, the mica flake cleaned in a operation or powdery mica are dropped into Japanese pulper hydro-pulping, and to get the slurry mica standby,

C, adopt 120～200 order draining screens concentration of dewatering must make with extra care the slurry mica to deposit drainer in standby on gained slurry mica in the b operation,

D, the refining slurry mica of gained in the c operation dropped into blank machine make slab,

E, gained built-up mica in the d operation smeared send into baking box baking, 120 ℃ of storing temperatures, storing time 5～6 minutes after one deck Resins, epoxy or the SAR-8 type high-temp glue.

F, with gained in the e operation through the built-up mica of overbaking send into that press pressurizes, heating cure handles and gets product, solidifying pressure is 100～120 kg/square centimeter, 180～280 ℃ of solidification values, 60 minutes solidification treatment time.

Thing as an alternative, described mica flake also can be mica scrap or mica powder.Thing and substitute mode described (Resins, epoxy+phenolic aldehyde power fat) as an alternative: (toluene+alcohol)=1: 1 also can be SAR-8 or SAR-9: toluene=1: 1.

Can find out by above-mentioned technical process fairly obviously, production process of mica plate of the present invention is by the disposable slab that produces of shaper with the mica raw material, without rolling, the direct uncoiling gluing of middle-chains such as transportation, thereby saved production cost, again because this product can directly badly draw the gluing of shaper rubber roll with plate, do not had the volume layer and intercept simultaneously, so gluing respond well, improve greatly and guaranteed quality product.Concrete this shaper slab gluing process can be referring to the embodiment accompanying drawing.

Embodiment 1:

A, get 1000 kilograms of cyclone classification modes of natural muscovite powder and rinse well;

B, the mica powder of cleaning in a operation is dropped into Japanese pulper carry out hydro-pulping;

C, gained slurry mica in the b operation is adopted screen cloth order number is the 180 purpose draining screens concentration of dewatering, and the refining slurry mica of gained is gone into drainer;

D, gained refining mica in the c operation is taken out from drainer, drop into blank machine and make slab, mix concentration by the required mica content of 5536-1 type reverser plate mica and be 25% 6101 Resins, epoxy, make this Resin adhesive and above-mentioned refining micaceous weight proportion meet following formula:

Glue: (mica+glue)=9: 100

E, with in the d operation built-up mica is sent in the baking box that temperature is set at 120 ℃ and is toasted, toast taking-up after 5 minutes.

F, gained in the e operation is sent into press compacting through the built-up mica of 120 ℃ of baking box prebake conditions, press pressure is 120 kg/square centimeter, 200 ℃ of temperature, 60 minutes time, treat temperature reduce to room temperature after shutdown promptly get 5536-1 type plate mica.Above-mentioned e technology and the concrete making processes of this operation will be referring to will be more directly perceived shown in the accompanying drawing.

Accompanying drawing is a shaper principle of work synoptic diagram,

1-shaper platform in the accompanying drawing, 11-drying cylinder, 2-slab, 21-gluing slab, 22-have been dried slab, 3-upper glue roller, 4-pressure roller, 5-draw the base supporting plate, 6-blocking cement, 7-woven wire, 8-woven wire deflector roll, 9-baking oven, 10-automatic shearing machine, 12-transition woven wire.

With reference to accompanying drawing, the mica slurry of sending here from pulping process promptly not gluing slab (2) by shaper platform (1) enter its drying cylinder (11) prebake conditions, baking after about 5 minutes by draw base holder machine (5) will through the slab (2) that prebake conditions is handled send to by blocking cement (6) for the upper glue roller (3) of glue under the compacting of pressure roller (4) cooperates to slab (2) rolling daub.It should be noted that the slab before the gluing does not have physical strength, can't rolling, can only rely on the support effect of the gravity and the guiding supporting plate of slab, just make slab " automatically " to enter upper glue roller.Under the drive of upper glue roller (3) and pressure roller (4), make slab (2) soak into the glue of blocking cement supply and become gluing slab (21) and continue reach, gluing slab (21) leave upper glue roller (3) after transition woven wire (12) fall into woven wire (7) the input baking oven (9) of woven wire deflector roll (8) carrying carry out solidifying pressure under 60 minutes, the 250 ℃ hot environments be pressurization, the heating cure of 120 kg/square centimeter handle and by automatic shearing machine (10) by setting the size shearing block finished product 5536-1 reverser plate mica in blocks.

Embodiment 2:

A, get the natural mica fragment and rinse well with trommel screen for 500 kilograms;

B, the mica flake that gained in a operation is clean drop into Japanese pulper and carry out hydro-pulping;

C, gained slurry mica in the b operation is adopted screen cloth order number is the 140 purpose draining screens concentration of dewatering, and the refining slurry mica of gained is gone into drainer;

D, gained refining mica in the c operation is taken out from drainer, drop into blank machine and make slab, mixing concentration by 5560-1 (HP5) electric heating apparatus with the required mica content of flat micanite is 25% SAR-8 organic silica gel, and the weight proportion of this organic silica gel and above-mentioned built-up mica is met:

Glue: (mica+glue)=8: 100

Following e, f, g three process are with embodiment 1.

This production process of mica plate of the present invention is compared with existing production technology, advances Go on foot fairly obvious.

1, can utilize different cultivars and varigrained mica to make raw material, make me State's mine mica is fully used, and has enlarged the source of raw material.

2, changed first papermaking, after make the mode of production of cutting apart of plate, disposable Produce micarex, technology is simple, and process conditions are also not harsh, fall significantly Low production cost, by 1 ton of micarex of existing explained hereafter need 16000 yuan with On, dropped to below 10000 yuan/tons.

3, the raw materials recovery rate is brought up to more than 95% by original 80%.

4, water consumption is down to 150 tons by original micarex per ton more than 450 tons Below.

5, this technology is at the test manufacture of Xiangyin, Hunan Province electrical apparatus insulation material factory, quilt Proof is produced stable, and product quality is up to standard and raising is arranged, and obtains user's favorable comment, Detect by Chinese insulating materials inspection center's detection and national Commodity imports and exports The approval of chamber.

Claims

1, a kind of production process of mica plate is characterized in that this technology finished by the following step:

E, with in the d operation built-up mica is smeared and is sent into baking box baking, 120 ℃ of storing temperatures, storing time 5～6 minutes after one deck Resins, epoxy or the SAR-8 type high-temp glue.

2, production process of mica plate according to claim 1 is characterized in that thing as an alternative, and described mica flake also can be mica scrap or mica powder.

3, production process of mica plate according to claim 1 is characterized in that mode (Resins, epoxy+resol) as an alternative: (toluene+alcohol)=1: 1 also can be SAR-8 or SAR-9 type high-temp glue: toluene=1: 1.