CN100487050C - Pipe holder made from composite material, and manufacturing method - Google Patents

Abstract

This invention relates to a method for producing composite pipeline brackets by hot-pressing molding. The composite pipeline brackets are produced from thermosetting resin, glass fibers, glass cloth, filler, and flame retardant. The composite pipeline brackets can be used as a substitute for metal pipeline brackets, and have such advantages as no magnetism, high strength, high salt-mist corrosion resistance, no toxicity, good heat insulation, no damage to pipelines, low energy consumption, low equipment investment, low cost and high cost performance.

Description

A kind of pipe holder made from composite material and manufacture method thereof

Technical field

The present invention relates to a kind of manufacture method that adopts matrix material to make pipe support and this pipe support.

Background technology

For a long time, public utilities and industrial pipeline adopt the pipe support of metal, and these metallic conduit supports are normally by iron and steel or aluminum alloy rolled required section bar, welding or assembled with fastening piece after the cutting.These conventional metals support production process energy consumptions are big, operation is many, the cycle is long.And under many occasions, for example underground works, chemical enterprise, rainy humidity or coastal salt mist environment, the iron and steel support gets rusty easily, corrodes, and reduce work-ing life greatly, even adopt processing such as outer painting or galvanizing, still can not thoroughly solve etching problem.What " multipurpose steel and plastic composite material support " (patent No. 96114172.7) adopted is that thermoplastics and metal extruding form, be shaped as double-deck tubing or square type, skin is plastics, internal layer is a thin-wall metal pipe, and it has corrosion resistant advantage, but because its intensity is low, toughness is big, flexural strength only is 40MPa, and is yielding, and is not suitable for pipe support; Simultaneously its adopts steel as liner, has magnetic, is not suitable for using under the non-magnetic condition requiring.

Summary of the invention

Purpose of the present invention be exactly provide in order to overcome the defective that above-mentioned prior art exists a kind of nonmagnetic, corrosion-resistant, resistivity against fire is good, good rigidly, heat insulating ability are good, the pipe holder made from composite material and the manufacture method thereof of low cost of manufacture.

Purpose of the present invention can be achieved through the following technical solutions:

A kind of pipe holder made from composite material is characterized in that, this pipe support is made by the fiber reinforcement duroplastic moulding materials; Described fiber reinforcement duroplastic moulding materials comprises thermosetting resin, glass fibre, woven fiber glass, filler and fire retardant, is by weight percentage: thermosetting resin 20～40, glass fibre 5～40, woven fiber glass 10～30, filler 20～60, fire retardant 5～30.

Described thermosetting resin is a unsaturated polyester resin; Described glass fibre is 5mm staple fibre or continuous fiber; Described woven fiber glass is alkali-free glass cloth or glass fibre non-woven, and described filler comprises one or more in lime carbonate, talcum powder, kaolin, aluminium hydroxide, the silicon powder, and described fire retardant is hibbsite or phosphorous, halogen-containing flame retardant.

Described unsaturated polyester resin is selected from a kind of in Vinylite, the Resins, epoxy.

Described glass fibre is an alkali free glass fibre.

Described fiber reinforcement duroplastic moulding materials also can comprise releasing agent, is 0.5～2 by weight percentage.

Described pipe support is independent moulding pipe support or combined pipe support.

Described pipe support is used to support DN80 and following pipeline.

A kind of manufacture method of pipe holder made from composite material is characterized in that, this method is starting material with the fiber reinforcement duroplastic moulding materials, adopts hot-forming manufactured; The weight percent of described fiber reinforcement duroplastic moulding materials consists of: thermosetting resin 20～40, glass fibre 5～40, woven fiber glass 10～30, filler 20～60, fire retardant 5～30; Described hot pressing formation process is: at first the fiber reinforcement duroplastic moulding materials is mixed with Preblend by above-mentioned weight percent composition, adopt the pipe support mould of closure up and down of band heating and temperature regulating device then, and it is installed on the press, when the mould temperature reaches 100～170 ℃, drop into the Preblend of fiber reinforcement duroplastic moulding materials rapidly, pressure-maintaining and heat-preservation solidified 5～20 minutes under 5～25MPa, and depanning can obtain desired product then.

Support of the present invention is to be raw material with the fiber reinforcement duroplastic moulding materials, is prefabricated into prepreg earlier, adopts hot pressing formation process to be prepared from again.Prepreg can be made into bulk (BMC), sheet (SMC), thick shape (TMC) or high-strength (HMC) etc.

Support of the present invention is because material adopts the glass-fiber reinforced thermo-setting moulding compound, and is added with fire retardant in the material, so (modulus in flexure can reach 12 * 10 to its rigidity height ³About MPa), indeformable, corrosion-resistant, resistivity against fire is good, nontoxic, good insulating, heat insulating ability are good, and its processing and manufacturing energy consumption is low, facility investment is less, cost is low, P/C is than high.Support of the present invention has overcome the existing problem of through metal.Table 1 is that the performance of support of the present invention and existing metallic conduit support compares.

Table 1

Project	Compound rest	The steel support
			Specific tenacity	High	Low
Weight support frame	1/3 of galvanized iron	Heavy
			Relative magnetic permeability	Less than 1.005	Greater than 10
Corrosion-resistant	Good	Difference
			Work-ing life	Underground more than 50 years	About 10 years
Maintenance cost	Substantially do not need	Greatly

Description of drawings

Fig. 1 is the structural representation of pipe support of the present invention;

Fig. 2 is the A-A sectional view of Fig. 1.

Pipe support in the accompanying drawing can be that monoblock type also can be a built-up type.

Embodiment

The invention will be further described by the following examples.

Embodiment 1 (monoblock type support)

Material is formed (percentage ratio by weight):

9508# unsaturated polyester resin 28

Glass fibre 20

Lime carbonate 10

Woven fiber glass 15

Pentabromoethyl benzene 8

Aluminium hydroxide 16

T-butylperoxyl benzoate 1

Zinc Stearate 2

Manufacture method:

1, earlier with prefabricated slabbing prepreg;

2, metal support mould is installed on 100 tons of press, mould has heating unit and automatic temp controller;

3, die temperature is risen to 145 ℃, press the sheet molding compound prepreg input mold cavity that above-mentioned materials is formed, fast matched moulds.Exit 2 to 5 times, pressure-maintaining and heat-preservation solidified 10 minutes under 20MPa.

4, goods are taken out in die sinking, remove overlap, are product.

Above-mentioned support performance: flame retardant resistance: oxygen index〉30; Load: total loading can reach 500Kg above (10 times to safety coefficient) on the support arm.

Embodiment 2 (support)

Material is formed (percentage ratio by weight):

Resins, epoxy 30

Glass fibre 20

Non-woven fabrics 15

Triethyl phosphate 8

Aluminium hydroxide 25

Zinic stearas 2

Manufacture method:

1, earlier with prefabricated one-tenth bulk prepreg;

2, metal mould is installed on 100 tons of press, mould has heating unit and automatic temp controller;

3, die temperature is risen to 120 ℃, the Bulk Molding Compound prepreg that above-mentioned materials is formed is put into mold cavity, matched moulds, pressurization rapidly, pressure-maintaining and heat-preservation solidified 15 minutes under 20MPa;

4, goods are taken out in die sinking, remove overlap, are product.

Above-mentioned assembly type support performance performance: flame retardant resistance: oxygen index〉30; Load: total loading can reach 500Kg (10 times to safety coefficient) on the support arm.

Embodiment 3 (assembly type pipe support)

Material is formed (percentage ratio by weight):

Reactive flame-proof ethylene base resin 30

Glass fibre 30

Woven fiber glass 10

Aluminium hydroxide 28

Magnesium Stearate 2

Manufacture method:

1, earlier with prefabricated slabbing prepreg;

2, metal mould is installed on 100 tons of press, mould has heating unit and automatic temp controller;

3, die temperature is risen to 160 ℃, quantitative sheet molding compound prepreg is put into mold cavity, matched moulds is exitted 2 to 5 times, pressurization rapidly, and pressure-maintaining and heat-preservation solidified 10 minutes under 15MPa;

4, goods are taken out in die sinking, remove overlap, are product.

Above-mentioned assembly type support performance performance: flame retardant resistance: oxygen index〉36; Load: total loading can reach 500Kg (10 times to safety coefficient) on the support arm.

Claims (7)

1. a pipe holder made from composite material is characterized in that, this pipe support is made by the fiber reinforcement duroplastic moulding materials; Described fiber reinforcement duroplastic moulding materials comprises thermosetting resin, glass fibre, woven fiber glass, filler and fire retardant, is by weight percentage: thermosetting resin 20～40, glass fibre 5～40, woven fiber glass 10～30, filler 20～60, fire retardant 5～30;

Described thermosetting resin is a unsaturated polyester resin; Described glass fibre is 5mm staple fibre or continuous fiber; Described woven fiber glass is alkali-free glass cloth or glass fibre non-woven, and described filler comprises one or more in lime carbonate, talcum powder, kaolin, aluminium hydroxide, the silicon powder, and described fire retardant is hibbsite or phosphorous or halogen-containing flame retardant.

2. a kind of pipe holder made from composite material according to claim 1 is characterized in that, described unsaturated polyester resin is selected from a kind of in Vinylite, the Resins, epoxy.

3. a kind of pipe holder made from composite material according to claim 1 is characterized in that, described glass fibre is an alkali free glass fibre.

4. a kind of pipe holder made from composite material according to claim 1 is characterized in that, described fiber reinforcement duroplastic moulding materials also comprises stearic acid release agent zinc or Magnesium Stearate, is 0.5～2 by weight percentage.

5. a kind of pipe holder made from composite material according to claim 1 is characterized in that, described pipe support is independent moulding pipe support or combined pipe support.

6. a kind of pipe holder made from composite material according to claim 1 is characterized in that, described pipe support is used to support DN80 and following pipeline.

7. the manufacture method of a pipe holder made from composite material is characterized in that, this method is starting material with the fiber reinforcement duroplastic moulding materials, adopts hot-forming manufactured; The weight percent of described fiber reinforcement duroplastic moulding materials consists of: thermosetting resin 20～40, glass fibre 5～40, woven fiber glass 10～30, filler 20～60, fire retardant 5～30; Described hot pressing formation process is: at first the fiber reinforcement duroplastic moulding materials is mixed with Preblend by above-mentioned weight percent composition, adopt the pipe support mould of closure up and down of band heating and temperature regulating device then, and it is installed on the press, when the mould temperature reaches 100～170 ℃, drop into the Preblend of fiber reinforcement duroplastic moulding materials rapidly, pressure-maintaining and heat-preservation solidified 5～20 minutes under 5～25MPa, and depanning can obtain desired product then;

Described thermosetting resin is a unsaturated polyester resin; Described glass fibre is 5mm staple fibre or continuous fiber; Described woven fiber glass is alkali-free glass cloth or glass fibre non-woven, and described filler comprises one or more in lime carbonate, talcum powder, kaolin, aluminium hydroxide, the silicon powder, and described fire retardant is hibbsite or phosphorous or halogen-containing flame retardant.

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