CN1192395A - Process for preparing reinforced article for loading use made of compound material and the use thereof - Google Patents

Abstract

The technological process consists of getting the following materials ready (waste wood, waste farm products, talc powder etc. additives, organic resin binder, amine salt etc. firming agent) and the procedures of drying, sieving, mixing, blending yum, spreading, pressing, pressure keeping, separating the die from die space, heating, heat preserving, seperating the working piece and die, obtaining the fixture piece product. Said fixture piece is used as triangular dog, wheel dog etc. for fixing the round goods. The advantayes are extensive source of raw material, simple process, diversifying the products, small investment equipment, high productive efficiency and low cost.

Description

The preparation technology of composite loading and reinforcing spare and purposes

The present invention relates to a kind of preparation technology and purposes that is used to transport the composite of girth member.

At present, the triangle retaining that railway transportation is made of log, ferrous materials the main employing of circular goods reinforcing, catch etc., its cost height, clout waste rate height.As wooden triangle retaining, its raw material will directly be at least more than the φ 300mm with bar, the round log of perennation, and the timber of making all slatterns, and the resource of timber quite lacks.

It is the composite of feedstock production that usefulness sponges such as particieboard, fiberboard are arranged now.The production technology of particieboard is: earlier timber processed screening then, drying, mixing, glue mixings such as formation wood shavings, sawdust such as clout, be pressed into sheet material.The preparation technology of fiberboard is roughly: raw material fragmentation and post rinse, remove and starch, concentrate, be pressed into plate.Can only produce sheet composition by above-mentioned technology, these sheet materials are mainly used in furniture manufacturing and indoor and outdoor decoration.

Purpose of the present invention aims to provide a kind of preparation technology who can be used as the composite of goods loading and reinforcing spare, and the purposes of composite fixture.

The implementation of the object of the invention is: the preparation technology of composite loading and reinforcing spare, with sponge, additive, adhesive, dust is removed in the curing agent screening and roughage, drying make moisture content to 3-6%, mixing the stirring back mats formation in die cavity, be pressed in the mould and suppress, more than the pressure 6MPa, the mould briquetting is combined as a whole, after pressurize 3-5 minute, from die cavity, take out mould and briquetting, place baking oven under 150 ℃ of-190 ℃ of temperature heat tracing 70-90 minute, take out cooling, from mould, take out workpiece and get the girth member product.

Raw material is made of the sponge particle of 10%-80%, the additive of 0.5-10%, the adhesive of 10-80%, the curing agent of 0.1-10%.

Wherein sponge comprises:

A, wood waste: sawdust, wood shavings, chips, butt, waste,

B, agricultural product waste material: bagasse, peanut shell, straw, husk, falx straw, cotton stalk, sorghum rod, cornstalk, straw.

Additive includes talcum powder, bone meal, polyvinyl alcohol or CMC, calcium chloride or calcium carbonate, silica.

Adhesive includes phenolic resins, epoxy resin, Lauxite, phenolic aldehyde-Pioloform, polyvinyl acetal.

Curing agent includes NaOH, phosphoric acid+ammonium chloride, oxalic acid+blood meal, ammonium salt, ethylenediamine, citric acid.

The purposes of composite fixture, is covered wood, recessed wood, is supported the lumps of wood etc. triangle retaining, the catch of using as goods loading and reinforcing.

It is raw material that the present invention adopts cheap timber processing clout and plant waste, and raw material sources are extensive, cost is low, and product cost is at below 60% of woodwork, ironwork, and raw material availability can reach more than 95%.

Adopt technology of the present invention, after raw material was paved on die cavity, oil cylinder was started working, and raw material is pressed in the mould together with pressing plate, with latch briquetting is fixed, and pressurize, then cylinder rod is regained original position, and mould separates with die cavity.

The present invention adopts compacting, pressurize, heats, insulation, mould and workpiece separating technology, and technology is simple, product is various, the press holding time is few, equipment investment is few, production efficiency is high.Adopt this technology to design, to prepare the product of different shape, specification according to each concrete goods, easy to process, product is various.

Enumerate formulation Example of the present invention below:

Example 1:

Vegetable material: 70% wood shavings, 10% crushed straw aggregate

Additive: 2% talcum powder

Adhesive: 17.9% phenolic resins

Curing agent: 0.1% NaOH

Example 2:

Vegetable material: 10% straw, 5% husk, 55% bagasse

Additive: 0.5% bone meal

Adhesive: the acid Lauxite of 29% polyvinyl acetate

Curing agent: 0.5% phosphoric acid+ammonium chloride

Example 3:

Vegetable material: 3% cornstalk or jowar stalk, 15% peanut shell, 1% husk, 1% straw, 23% wood chip

Additive: 10% polyvinyl alcohol or CMC

Adhesive: the acid Lauxite of 17% melmac or melamine

Curing agent: 1% oxalic acid+2% blood meal

Example 4:

Vegetable material: 50% bamboo disintegrating slag, 10% reed, 19% broken wood shavings sheet, 1% husk

Additive: 0.5% calcium chloride

Adhesive: 10% bisphenol A type epoxy resin (epoxide number is between 0.02-0.22mol/100g)

Curing agent: 9.5% ethylenediamine

Example 5:

Vegetable material: 58% all kinds of crushed straw aggregates, 20% timber waste additive: 8% talcum material, 1.9% polyvinyl alcohol adhesive: 10% phenolic aldehyde-Pioloform, polyvinyl acetal curing agent: 0.1% citric acid example 6: vegetable material: 5% straw, 1% husk, 10% flax stalk, 40% wood wool sheet additive: 0.7% calcium carbonate or silica adhesive: the acid Lauxite of 40% resorcinol or phenolic aldehyde-urea formaldehyde resin curing agent: 3.3% ammonium salt example 7: vegetable material: 10% wood shavings, 0.9% husk additive: 10% talcum powder adhesive: 80% polyurethane (as: 2.4-toluene di-isocyanate(TDI), hexamethylene-diisocyanate is the B component, the A component

Can be mylar) curing agent: 0.1% ammonium salt

Claims (2)

1, the preparation technology of composite loading and reinforcing spare, with sponge, additive, adhesive, dust is removed in the curing agent screening and roughage, drying make moisture content to 3-6%, mixing the stirring back mats formation in die cavity, be pressed in the mould and suppress, more than the pressure 6MPa, the mould briquetting is combined as a whole, after it is characterized in that pressurize 3-5 minute, from die cavity, take out mould and briquetting, place baking oven under 150 ℃ of-190 ℃ of temperature heat tracing 70-90 minute, take out cooling, from mould, take out workpiece and get the girth member product

Raw material is made of the sponge particle of 10%-80%, the additive of 0.5-10%, the adhesive of 10-80%, the curing agent of 0.1-10%,

Wherein sponge comprises:

A, wood waste: sawdust, wood shavings, chips, butt, waste,

B, agricultural product waste material: bagasse, peanut shell, straw, husk, falx straw, cotton stalk, sorghum rod, cornstalk, straw,

Additive includes talcum powder, bone meal, polyvinyl alcohol or CMC, calcium chloride or calcium carbonate, silica,

Adhesive includes phenolic resins, epoxy resin, Lauxite, phenolic aldehyde-Pioloform, polyvinyl acetal,

Curing agent includes NaOH, phosphoric acid+ammonium chloride, oxalic acid+blood meal, ammonium salt, ethylenediamine, citric acid.

2, composite material reinforced purposes, is covered wood, recessed wood, is supported the lumps of wood triangle retaining, the catch that it is characterized in that using as goods loading and reinforcing.