CN104844851B - Make the sizing material and manufacturing method of soft mould of hard alloy blank soft mode - Google Patents

Make the sizing material and manufacturing method of soft mould of hard alloy blank soft mode Download PDF

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Publication number
CN104844851B
CN104844851B CN201510244953.7A CN201510244953A CN104844851B CN 104844851 B CN104844851 B CN 104844851B CN 201510244953 A CN201510244953 A CN 201510244953A CN 104844851 B CN104844851 B CN 104844851B
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Prior art keywords
parts
rubber
butadiene
soft mode
zinc oxide
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CN201510244953.7A
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CN104844851A (en
Inventor
董海亚
胡颂平
何超
郭舜华
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Rubber Studying And Designing Institute China Chemical Industry Zhuzhou Co Ltd
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Rubber Studying And Designing Institute China Chemical Industry Zhuzhou Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00Compositions of natural rubber
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/014Additives containing two or more different additives of the same subgroup in C08K
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A kind of sizing material for making hard alloy blank soft mode, for the dry bag formula isostatic pressed rubber soft mode sizing material based on natural rubber;Component and parts by weight proportioning are as follows:55 100 parts of natural rubber, 0 45 parts of butadiene-styrene rubber, 0 45 parts of butadiene rubber, 35 parts of zinc oxide, 13 parts of stearic acid, 53 130 parts of auxiliary addition agent;Described auxiliary addition agent includes age resistor, reinforcing agent, plasticizer, vulcanizing agent and accelerator;Zinc oxide, stearic acid and auxiliary addition agent are added after natural rubber and two kinds of sizing materials of butadiene-styrene rubber or butadiene rubber are uniformly kneaded, then hard alloy blank rubber soft mode is made in overall vulcanization.

Description

Make the sizing material and manufacturing method of soft mould of hard alloy blank soft mode
Technical field
The present invention relates to a kind of rubber soft mode sizing material and preparation method thereof, refers in particular to a kind of pressure of hard alloy blank The preparation method of system and molded rubber soft mode sizing material and its rubber soft mode, it is mainly used in making hard alloy compacting rubber soft mode, Belong to rubber soft mode field of material technology.
Background technology:
Hard alloy be by refractory metal hard compounds and binding metal by powder metallurgical technique made of it is a kind of Alloy material, there are a series of premium properties such as hardness is high, wear-resisting, intensity and toughness are preferable, heat-resisting, corrosion-resistant, now extensively As various high-abrasive materials.Its production process be generally the producing of powder, the mixing of powder, the compacting of blank and shaping, sintering, Post processing, the compacting of wherein blank are one of key links of hard alloy manufacture.When making blank, typically now all adopt Produced with dry bag formula isostatic pressed rubber soft mode.Because mould must possess certain tensile strength and tearing strength, while not Physics chemical action can occur with medium, be not easy to adhere to pressed compact, so dry bag formula isostatic tooling is typically from polyurethane, polychlorostyrene Matrix material of the vinyl material as mould.
Polyurethane rubber mould is using relatively broad, but because the processing characteristics of polyurethane, its shrinkage factor can be with productions Slightly changing for technique and have larger fluctuation, and it is influenceed, tensile strength during long-term storage by moisture in air It can be declined to a great extent Deng key performance, have a strong impact on the quality of product.Polyvinyl chloride mould is due to its matrix material polyvinyl chloride The material property of itself, mould elasticity is general poor, and the product appearance after shaping is poor, and size is irregular, and processing capacity is big, serious shadow Ring the benefit to enterprise.Simultaneously because cemented carbide powder cost is higher, the defects of rubber mold quality, can be caused not toward contact Appreciable loss.It is necessary that this is improved.
By patent retrieval and do not find there be the patent literature constructed with the present invention, related to the present invention is main Have following:
1st, Patent No. CN99114708, the patent of invention of entitled " preparation method of soft mould of natural rubber ", the patent Disclose a kind of preparation method of soft mould of natural rubber, it be by natural rubber and altax, Vulcanization accelerator TMTD, zinc oxide, After the complete mixing of antioxidant A W, sulphur, casein, ammoniacal liquor, potassium hydroxide and distilled water stirs, equably smear or be sprayed on On duplicate, removed after dry.Soft mode, which is made, with the present invention had both had technique simple, low manufacture cost and elasticity good etc. excellent Point, there is stretch-proof, tear-proof, abrasion performance, warping strength and endurance again, service life is grown, at normal temperatures can Made, the soft mode especially suitable for the glass fiber reinforced plastics product of tack extra-heavy makes.
2nd, Patent No. CN200510132686, the patent of invention of entitled " method of manufacture soft mode ", the patent disclose A kind of method for manufacturing soft mode, wherein the size regardless of the master mold for forming soft mode, process matching degree are all very high. Method for manufacturing soft mode includes:Master mold is placed on fixture;Pre-polymer layer is formed in the fixture;Backplane substrate is attached In the pre-polymer layer;Optionally solidify the pre-polymer layer to be formed selectively polymeric layer;From the fixture The polymeric layer and the pre-polymer layer are peeled off with the master mold;And remove uncured pre-polymer layer.
3rd, Patent No. CN200710104859, the patent of invention of entitled " soft mold and its manufacture method ", the patent Disclose a kind of soft mold and its manufacture method.The soft mold includes:Photocurable materials;And light trigger, wherein, it is described soft Mould meets formula, wherein, γ dM are the scattered items of the surface energy of the soft mold, and γ pM are the surface energies of the soft mold Polarity item, and γ L are the surface energies of deionized water.
Though these above-mentioned patents have been directed to the manufacture method of some soft molds, wherein having also related to some materials Improvement, especially first patent(CN99114708)Propose a kind of method and glue that soft mode is prepared using natural rubber Material, but this method proposed it is simply a kind of by natural rubber and altax, Vulcanization accelerator TMTD, zinc oxide, antioxidant A W, After the complete mixing of sulphur, casein, ammoniacal liquor, potassium hydroxide and distilled water stirs, equably smear or be sprayed on duplicate, Removed after dry straightforward procedure, this method is not adapt to make hard alloy soft jelly mould, the material proposed Also it is not suitable with and makes hard alloy, therefore it is still necessary to is improved.
The content of the invention
The purpose of the present invention is exactly to suppress the problems of soft mode according to current hard alloy blank, proposes that one kind can fit The rubber soft mode sizing material and its rubber manufacturing method of soft mould for answering hard alloy blank to suppress and be molded.
According to foregoing invention purpose, technical scheme proposed by the invention is:A kind of hard alloy blank soft mode of making Sizing material, for the dry bag formula isostatic pressed rubber soft mode sizing material based on natural rubber;Component and parts by weight proportioning are as follows:
Natural rubber 55-100 parts
Butadiene-styrene rubber 0-45 parts
Butadiene rubber 0-45 parts
Zinc oxide 3-5 parts
Stearic acid 1-3 parts
Auxiliary addition agent 53-130 parts;
Natural rubber and butadiene-styrene rubber or butadiene rubber are uniformly kneaded with zinc oxide, stearic acid and auxiliary addition agent, then it is whole Hard alloy blank rubber soft mode is made in body vulcanization.
Further, described zinc oxide includes 20-30% activated zinc oxide, using activated zinc oxide and zinc oxide It is used in combination, further improves the physical property of sizing material.
Further, described auxiliary addition agent includes age resistor, reinforcing agent, plasticizer, vulcanizing agent and accelerator, each component Weight deal proportioning it is as follows:
Age resistor 1-4 parts
Reinforcing agent 50-100 parts
Plasticizer 0-20 parts
Vulcanizing agent 1-3 parts
Accelerator 1-3 parts.
Described age resistor, reinforcing agent, plasticizer, vulcanizing agent and accelerator is the age resistor commonly used in rubber production, mended Strong agent, plasticizer, vulcanizing agent and accelerator.
Further, rubber soft mode sizing material component and the parts by weight proportioning of the compacting of described hard alloy blank and shaping It is as follows:
80 parts of natural rubber
20 parts of butadiene-styrene rubber
Sulphur is 2 parts of vulcanizing agent
1.2 parts of accelerator
5 parts of zinc oxide
1.5 parts of stearic acid
4 parts of age resistor
60 parts of carbon black.
Further, rubber soft mode sizing material component and the parts by weight proportioning of the compacting of described hard alloy blank and shaping It is as follows:
80 parts of natural rubber
20 parts of butadiene rubber
5 parts of zinc oxide
1.5 parts of stearic acid
1 part of antioxidant D
1.5 parts of antioxidant 4010NA
1.5 parts of microwax
55 parts of high wear-resistant carbon black
15 parts of semi-reinforcing hydrocarbon black
2 parts of tackifier RH
1.2 parts of accelerant CZ
2 parts of sulphur.
A kind of preparation method for the rubber soft mode for realizing the compacting of above-mentioned hard alloy blank and shaping, using natural rubber with Butadiene-styrene rubber or butadiene rubber are kneaded, and accordingly adjust formula system, and the compacting of hard alloy blank and shaping are made after vulcanization Rubber soft mode.
Further, described use natural rubber and butadiene-styrene rubber or butadiene rubber and zinc oxide, stearic acid and auxiliary Auxiliary agent is uniformly kneaded, then hard alloy blank rubber soft mode is made in overall vulcanization.
Further, the preparation method of described rubber soft mode is as follows:
1)Choose dispensing:
Natural rubber 55-100 parts
Butadiene-styrene rubber 0-45 parts
Butadiene rubber 0-45 parts
Zinc oxide 3-5 parts
Stearic acid 1-3 parts
Auxiliary addition agent 53-130 parts
Age resistor 1-4 parts
Reinforcing agent 50-100 parts
Plasticizer 0-20 parts
Vulcanizing agent 1-3 parts
Accelerator 1-3 parts
2)Natural rubber and butadiene-styrene rubber or butadiene rubber are added into zinc oxide, stearic acid and auxiliary addition agent in banbury And it is kneaded uniform, addition accelerator and vulcanizing agent in mill.
3)The rubber soft mode of the compacting of hard alloy blank and shaping is made in vulcanization.
The advantage of the invention is that:The present invention is using natural rubber and with a small amount of butadiene-styrene rubber or butadiene rubber, and phase Formula system should be adjusted, it is the standby isostatic pressed soft mode poor dimensional stability of main system, use that can solve with polyurethane, polyvinyl chloride The deficiencies of short life.Dry bag formula isostatic pressed rubber soft mode dimensional stability of the present invention based on natural rubber is high, elasticity is good, Tensile strength is high.The hard alloy dry bag formula isostatic pressed rubber soft mode prepared according to inventive formulation uses under hydraulic pressure environment When, service life may be up to 2000 times, remote ultra-traditional polyurethane, polyvinyl chloride hard alloy dry bag formula isostatic pressed rubber soft mode 500-600 service life.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
Embodiment one to three
A kind of dry bag formula isostatic pressed rubber soft mode sizing compound formula based on natural rubber, the parts by weight of its formula material Including:
Natural rubber 55-100 parts
Butadiene-styrene rubber 0-45 parts
Butadiene rubber 0-45 parts
Zinc oxide 3-5 parts
Stearic acid 1-3 parts
Age resistor 1-4 parts
Reinforcing agent 50-100 parts
Plasticizer 0-20 parts
Vulcanizing agent 1-3 parts
Accelerator 1-3 parts
The hard alloy dry bag formula isostatic pressed rubber soft mode based on natural rubber described in the above embodiment of the present invention Sizing compound formula, its parts by weight of raw materials are most preferably:
Natural rubber 80 parts
Butadiene rubber 20 parts
Zinc oxide 5 parts
Stearic acid 1.5 part
Antioxidant D 1 part
Antioxidant 4010NA 1.5 part
Microwax 1.5 part
High wear-resistant carbon black 55 parts
Semi-reinforcing hydrocarbon black 15 parts
Tackifier RH 2 parts
Accelerant CZ 1.2 part
Sulphur 2 parts
The collocation of the type selecting of three kinds of sizing materials and various auxiliary agents is as follows:
Raw material title Embodiment one is formulated Embodiment two is formulated Embodiment three is formulated
Natural rubber 80 parts 65 parts 80 parts
Butadiene rubber 20 parts 20 parts 20 parts
Butadiene-styrene rubber 0 part 15 parts 0 part
Zinc oxide 5 parts 5 parts 5 parts
Stearic acid 1.5 part 1.5 part 1.5 part
Antioxidant D 1 part 1 part 1 part
Antioxidant 4010NA 1.5 part 1.5 part 1.5 part
Microwax 1.5 part 1.5 part 1.5 part
High wear-resistant carbon black 55 parts 55 parts 55 parts
Semi-reinforcing hydrocarbon black 15 parts 15 parts 15 parts
Tackifier RH 2 parts 2 parts 2 parts
Accelerant CZ 1.2 part 1.2 part 1.5 part
Sulphur 2 parts 2 parts 3 parts
It is as follows by the rubber soft mode physical property obtained by sulfidization molding according to above-mentioned formula:
Project Test recipe 1 Test recipe 2 Test recipe 3
Hardness, shore A 76 76 78
100% stretches surely, MPa 4.29 4.17 6.13
200% stretches surely, MPa 9.53 9.33 13.47
300% stretches surely, MPa 14.75 14.54 0
Elongation, % 399.80 392.00 272.50
Tensile strength, MPa 19.07 18.52 17.67
Tearing strength, KN/m 105.40 45.05 45.25
Have no progeny deformation, % 14.00 12.00 12.00
Compression set, % 22.60 23.27 21.36
It can reach 2000 according to hard alloy dry bag formula isostatic pressed rubber soft mode, service life made from inventive formulation More than secondary.
It can be seen from above-described embodiment that the present invention relates to the rubber soft mode of a kind of compacting of hard alloy blank and shaping Preparation method, be kneaded using natural rubber and butadiene-styrene rubber or butadiene rubber, and accordingly adjust formula system, made after vulcanization Go out the rubber soft mode of the compacting of hard alloy blank and shaping.
Further, described is to use natural rubber and fourth using natural rubber and butadiene-styrene rubber or butadiene rubber mixing Benzene rubber or butadiene rubber are kneaded uniformly with zinc oxide, stearic acid, auxiliary addition agent in banbury, are added and are promoted in mill Hard alloy blank rubber soft mode is made in agent, vulcanizing agent, then overall vulcanization.
Further, the preparation method of described rubber soft mode is as follows:
4)Choose dispensing:
Natural rubber 55-100 parts
Butadiene-styrene rubber 0-45 parts
Butadiene rubber 0-45 parts
Zinc oxide 3-5 parts
Stearic acid 1-3 parts
Auxiliary addition agent 53-130 parts
Age resistor 1-4 parts
Reinforcing agent 50-100 parts
Plasticizer 0-20 parts
Vulcanizing agent 1-3 parts
Accelerator 1-3 parts
5)Natural rubber and butadiene-styrene rubber or butadiene rubber and zinc oxide, stearic acid, auxiliary addition agent are mixed in banbury Refining is uniform, and accelerator, vulcanizing agent are added in mill.
6)The rubber soft mode of the compacting of hard alloy blank and shaping is made in vulcanization.
The advantage of the invention is that:The present invention is using natural rubber and with a small amount of butadiene-styrene rubber or butadiene rubber, and phase Vulcanizing system should be adjusted, it is the standby isostatic pressed soft mode poor dimensional stability of main system, use that can solve with polyurethane, polyvinyl chloride The deficiencies of short life.Dry bag formula isostatic pressed rubber soft mode dimensional stability of the present invention based on natural rubber is high, elasticity is good, Tensile strength is high.The hard alloy dry bag formula isostatic pressed rubber soft mode prepared according to inventive formulation uses under hydraulic pressure environment When, service life may be up to 2000 times, remote ultra-traditional polyurethane, polyvinyl chloride hard alloy dry bag formula isostatic pressed rubber soft mode 500-600 service life.
Above example is simply to illustrate that the present invention, some cited more preferably embodiments, this area skill The usual variations and alternatives that art personnel are carried out in the range of the technical program should include within the scope of the present invention.

Claims (2)

  1. A kind of 1. sizing material for making hard alloy blank soft mode, it is characterised in that:Sizing material is the dry bag based on natural rubber Formula isostatic pressed rubber soft mode sizing material;Component and parts by weight proportioning are as follows:
    65 parts of natural rubber
    20 parts of butadiene rubber
    15 parts of butadiene-styrene rubber
    5 parts of zinc oxide
    1.5 parts of stearic acid
    1 part of antioxidant D
    1.5 parts of antioxidant 4010NA
    1.5 parts of microwax
    55 parts of high wear-resistant carbon black
    15 parts of semi-reinforcing hydrocarbon black
    2 parts of tackifier RH
    1.2 parts of accelerant CZ
    2 parts of sulphur;
    Natural rubber, butadiene-styrene rubber and butadiene rubber and zinc oxide, stearic acid, auxiliary addition agent are kneaded uniformly in banbury, Accelerator, sulphur are added in mill, then hard alloy blank rubber soft mode is made in overall vulcanization;Wrapped in described zinc oxide 20-30% activated zinc oxide is included, is used in combination using activated zinc oxide and zinc oxide, further improves the physical property of sizing material.
  2. 2. a kind of method that the compacting of hard alloy blank and molded rubber soft mode are made using sizing material described in claim 1, is used Natural rubber is kneaded with butadiene rubber and butadiene-styrene rubber, and accordingly adjusts formula system, and hard alloy blank is made after vulcanization Compacting and the rubber soft mode of shaping;The preparation method of described rubber soft mode is as follows:
    1) dispensing is chosen:
    65 parts of natural rubber
    20 parts of butadiene rubber
    15 parts of butadiene-styrene rubber
    5 parts of zinc oxide
    1.5 parts of stearic acid
    1 part of antioxidant D
    1.5 parts of antioxidant 4010NA
    1.5 parts of microwax
    55 parts of high wear-resistant carbon black
    15 parts of semi-reinforcing hydrocarbon black
    2 parts of tackifier RH
    1.2 parts of accelerant CZ
    2 parts of sulphur;
    2) natural rubber and butadiene-styrene rubber and butadiene rubber, zinc oxide, stearic acid and auxiliary addition agent are kneaded uniform;In mill Middle addition accelerator, sulphur;
    3) the rubber soft mode of the compacting of hard alloy blank and shaping is made in vulcanization.
CN201510244953.7A 2015-05-14 2015-05-14 Make the sizing material and manufacturing method of soft mould of hard alloy blank soft mode Expired - Fee Related CN104844851B (en)

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CN105414547B (en) * 2015-12-18 2017-08-25 株洲美特优硬质合金有限公司 Ultra-fine grain list double straight-hole hard alloy pole manufacture method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102030928A (en) * 2010-12-10 2011-04-27 上海众力汽车部件有限公司 Rubber with low dynamic to static ratio for resisting compression and fatigue

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Publication number Priority date Publication date Assignee Title
CN1266864A (en) * 1999-03-12 2000-09-20 李培蕾 Process for preparing soft mould of natural rubber
JP2009234108A (en) * 2008-03-27 2009-10-15 Mitsuboshi Belting Ltd Rubber mold for shaping rubber belt

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102030928A (en) * 2010-12-10 2011-04-27 上海众力汽车部件有限公司 Rubber with low dynamic to static ratio for resisting compression and fatigue

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"活性氧化锌对天然橡胶 顺丁橡胶 丁苯橡胶胶料性能的影响";赵艳芳等;《橡胶科技市场》;20080101(第1期);第17-19页 *

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