WO2020034060A1 - Conductive wear-resistant macromolecular composite plate and manufacturing process therefor - Google Patents

Conductive wear-resistant macromolecular composite plate and manufacturing process therefor Download PDF

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Publication number
WO2020034060A1
WO2020034060A1 PCT/CN2018/100196 CN2018100196W WO2020034060A1 WO 2020034060 A1 WO2020034060 A1 WO 2020034060A1 CN 2018100196 W CN2018100196 W CN 2018100196W WO 2020034060 A1 WO2020034060 A1 WO 2020034060A1
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WIPO (PCT)
Prior art keywords
plate
wear
polymer conductive
resistant composite
strip
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PCT/CN2018/100196
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French (fr)
Chinese (zh)
Inventor
黄凯
黄蓓蕾
叶哈雷
黄毅
陈胜权
周常旺
徐由清
杨小俊
黄东来
叶慧
方明华
何林娟
戴丹燕
雷训宁
戴文明
卢文通
吴晓通
Original Assignee
江西东方豹紧固件有限公司
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Application filed by 江西东方豹紧固件有限公司 filed Critical 江西东方豹紧固件有限公司
Priority to PCT/CN2018/100196 priority Critical patent/WO2020034060A1/en
Priority to GB1905867.6A priority patent/GB2570820B/en
Publication of WO2020034060A1 publication Critical patent/WO2020034060A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/103—Metal fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/107—Ceramic
    • B32B2264/108—Carbon, e.g. graphite particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/80—Sintered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/202—Conductive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/12—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/30—Iron, e.g. steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2327/00—Polyvinylhalogenides
    • B32B2327/12—Polyvinylhalogenides containing fluorine
    • B32B2327/18—PTFE, i.e. polytetrafluoroethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars

Definitions

  • the invention relates to the technical field of new composite materials, in particular to a polymer conductive and wear-resistant composite plate and a manufacturing process thereof.
  • the more advanced sheet materials in the wear-resistant sheet industry are: 1. It is composed of steel plate, copper powder, and polytetrafluoroethylene. It has the advantages of light weight and self-lubrication without refueling, but there are serious defects, such as thin wear-resistant layers, Short abrasion time and poor abrasion resistance; 2. It is composed of steel plate, copper mesh, and polytetrafluoroethylene, although some defects of the steel plate, copper powder, and polytetrafluoroethylene structure have been significantly improved, and the resistance has been greatly increased.
  • the thickness of the abrasive layer prolongs the service life, but because the copper mesh is woven from copper wire, the copper wire is affected by the force during the processing of the finished plate, which easily causes wire drawing and loosening defects, which affects the quality of the finished plate.
  • the rear trunk glass circuit needs to be connected through the bushing of the door hinge to achieve the heating and defogging function, but because the PTFE material is a polymer material, it does not have conductivity Due to its characteristics, the inner polymer wear surface of the traditional bushing is non-conductive, which causes the automobile factory to increase the wiring harness to achieve the conductive function, which not only increases the manufacturing cost of the car, but also increases the risks of line leakage and other risks.
  • the present invention provides a polymer conductive and wear-resistant composite sheet and a manufacturing process thereof, which overcomes the two major technical problems of copper mesh drawing, loosening and non-conductivity in the prior art, so
  • the molecular conductive wear-resistant composite sheet has the characteristics of firm sintering, tight structure, stable conductivity and strong wear resistance, which greatly improves the suitability, extensiveness and reliability of conductive composite materials.
  • the technical solution adopted by the present invention is: a polymer conductive wear-resistant composite plate, the polymer conductive wear-resistant composite plate is composed of a base layer, an intermediate layer and a polymer conductive inner layer in order from bottom to top; The base layer and the intermediate layer are integrally sintered. The intermediate layer is provided with a plurality of through holes, and the polymer conductive inner layer is entirely covered on the intermediate layer.
  • the through-holes on the surface of the intermediate layer are stretched through-holes punched at equal distances, and the stretched through-holes form a circular truncated cone-shaped tapered depression structure on the intermediate layer material.
  • the circular truncated cone-shaped tapered recessed structure of the base layer and the middle layer stretches a large-diameter side of the through hole.
  • the base layer is a strip-shaped steel plate.
  • the intermediate layer is a strip-shaped copper plate.
  • the diameter of the tensile through hole of the circular truncated tapered depression structure of the intermediate layer material is ⁇ 1.5mm, the large diameter of the tensile through hole is ⁇ 2mm, and the height of the tensile through hole is 0.45mm.
  • the polymer conductive inner layer is a polymer conductive wear-resistant composite material having a resistance value of ⁇ 1000 ⁇ and having conductive properties.
  • the polymer conductive wear-resistant composite material is made of polytetrafluoroethylene 25%, glass fiber 10%, and graphite. 60%, molybdenum disulfide 5% composition.
  • a manufacturing process of a polymer conductive and wear-resistant composite plate includes the following steps:
  • Cooling sintering the strip-shaped steel plate and the strip-shaped copper plate with holes into one body to cool the air naturally through a water cooling box;
  • Polymer conductive wear-resistant composite material is placed on the surface of the strip-shaped copper plate and tensile holes in the sintered integrated plate.
  • the polymer conductive wear-resistant composite material includes polytetrafluoroethylene, glass fiber, Graphite and molybdenum disulfide are mixed to form a composite material, and the amount of each component is 25% of polytetrafluoroethylene, 10% of glass fiber, 60% of graphite, and 5% of molybdenum disulfide;
  • Drying Put the sintered composite plate into a drying furnace for drying.
  • the drying temperature is 300 ° C and the drying time is 700 rpm.
  • Plasticizing put the plate after the initial rolling into an electric furnace and perform plasticizing and sintering under a protective atmosphere.
  • the plasticizing temperature is 380 ° C and the speed of the mesh belt furnace is 700 rpm.
  • the protective atmosphere in step (3) is a mixed gas of 70% hydrogen and 30% nitrogen, and the pressure is 0.7mpa-0.8mpa.
  • the protective atmosphere in step (8) is nitrogen, and the pressure is maintained at 0.6 mpa-0.8 mpa.
  • the beneficial effects of the present invention are as follows:
  • the present invention provides a polymer conductive wear-resistant composite plate and a manufacturing process thereof.
  • a strip-shaped steel plate is used as a substrate
  • a strip-shaped copper plate is used as an intermediate layer
  • a polymer conductive wear-resistant composite material is used as an inner layer.
  • the composite plate not only solves the problem of non-conductivity of the polymer plastic, but also avoids the defects of drawing and loosening of the copper mesh.
  • the manufacturing process of the invention enables the strip steel plate, the strip copper plate, and the polymer wear-resistant material to pass through the automatic assembly line operation mode. It is made into an integrated polymer conductive wear-resistant composite sheet.
  • the production process has the characteristics of high efficiency, fast speed, no waste during the manufacturing process, solid sintering, tight structure, stable conductivity, strong wear resistance, etc., which greatly improves the conductive composite.
  • the suitability, extensiveness and reliability of the materials provide a new type of polymer conductive wear-resistant plate for the machinery, automobile, high-speed rail, aircraft and other industries in China, and the preparation process of the polymer conductive wear-resistant composite plate described above. Can be streamlined production, high production efficiency, good quality, can be applied on a large scale.
  • FIG. 1 is a process flow chart of the present invention.
  • FIG. 2 is a schematic view showing a structure of a drawing hole of a copper plate according to the present invention.
  • FIG. 3 is a schematic structural diagram of a polymer conductive and wear-resistant composite plate according to the present invention.
  • a polymer conductive wear-resistant composite plate is composed of a base layer, an intermediate layer and a conductive inner layer in order from bottom to top, and the base layer is a steel plate or other metal plate, It is preferably a strip steel plate, using SPCC strip steel with a size of 0.5mm ⁇ 1000m, the intermediate layer is a copper plate or other metal plate, preferably a strip copper plate, using QSN6.5-0.1 strip copper plate, QSN6.5 -0.1 Strip copper plate has high strength, elasticity, abrasion resistance and magnetic resistance. It has good press workability in hot and cold states, has high flame resistance to electric sparks, can be welded and brazed, and can be cut. Good performance, corrosion resistance in the atmosphere and fresh water.
  • the size is 6.5mm-0.1m.
  • the polymer conductive inner layer is a polymer conductive wear-resistant composite material.
  • the polymer conductive wear-resistant composite material is made of polytetrafluoroethylene 25%, glass fiber 10%, and graphite 60. %, Molybdenum disulfide 5% composition.
  • the prepared plate has both enhanced abrasion resistance and conductive properties.
  • the polymer conductive and wear-resistant composite material is a composite material formed by polytetrafluoroethylene, glass fiber, graphite, and molybdenum disulfide through stirring. The matrix layer and the intermediate layer are simultaneously combined and sintered together.
  • the strip steel plate is below. A strip of copper is on it.
  • the intermediate layer surface is provided with a plurality of equal-length stretch punching through-holes in the vertical and horizontal directions.
  • the stretching through-holes form a circular truncated cone-shaped tapered depression structure on the intermediate layer material, and the circular truncated cone-shaped tapered depression structure.
  • the polymer conductive inner layer material is easier to uniformly cover the strip-shaped copper plate.
  • the circular trough-shaped depression structure of the intermediate layer material has a small diameter of the drawing through hole of 1.5mm, a large diameter of the drawing through hole of 2mm, and a drawing through hole.
  • the height is 0.45mm.
  • the base layer and the intermediate layer of the circular truncated cone-shaped tapered recessed structure have a large-diameter side of the tensile through hole superimposed, and the polymer conductive inner layer is entirely covered on the intermediate layer.
  • the polymer conductive wear-resistant composite plate of the present invention and the manufacturing process thereof will be described in detail below with reference to FIG. 1.
  • the polymer conductive wear-resistant composite plate and the manufacturing process thereof include the following steps:
  • the steel plate is SPCC0.5mm ⁇ 1000m
  • the copper plate is QSN6.5-0.1, QSN6. .5-0.1
  • Strip copper plate has high strength, elasticity, abrasion resistance and magnetic resistance, good press workability in hot and cold state, high flame resistance to electric spark, can be welded and brazed, Good machinability, corrosion resistance in the atmosphere and fresh water;
  • the drawing through holes are drawn at equal distances.
  • a through hole is formed, and the stretched through hole forms a circular truncated cone-shaped tapered depression structure on the intermediate layer material.
  • the diameter of the through hole and the height of the through hole are 1.5mm ⁇ 2mm ⁇ 0.45mm, that is, the small diameter of the through hole ⁇ the large diameter of the through hole ⁇ the height of the through hole.
  • the circular truncated tapered depression structure increases the overall structural strength of the strip copper plate and also makes the overall package
  • the polymer conductive inner layer covered with the strip-shaped copper plate is not easy to separate from the strip-shaped copper plate, which increases the bonding strength between the two, and the polymer conductive inner layer material injected through the tensile through hole is easier to uniformly cover the strip-shaped copper plate. ;
  • the composite material preferably includes polytetrafluoroethylene, glass fiber, graphite, and molybdenum disulfide.
  • the amount of each component is 25% of polytetrafluoroethylene, 10% of glass fiber, 60% of graphite, and 5% of molybdenum disulfide.
  • the grinding performance has conductive properties;
  • Drying Put the injected sheet into the drying furnace for drying.
  • the drying temperature is 300 ° C.
  • the speed of the mesh belt furnace is 700 rpm.
  • Plasticizing Put the rolled sheet into a mesh belt electric furnace for plasticizing and sintering.
  • the plasticizing temperature is 380 ° C.
  • the speed of the mesh belt furnace is 700 rpm.
  • the furnace is protected by nitrogen and the air pressure is maintained at 0.6. mpa-0.8mpa;
  • the production process of the invention has the characteristics of high efficiency, fast speed, no waste during the manufacturing process, firm sintering, tight structure, stable conductivity, strong abrasion resistance, etc., and greatly improves the suitability, extensiveness and reliability of conductive composite materials.
  • a new type of polymer conductive wear-resistant plate with stable structure is provided for the machinery, automobile, high-speed rail, aircraft and other industries in China, and the preparation process of the polymer conductive wear-resistant composite plate of the present invention can be applied to automatic assembly line production. High production efficiency, good quality, can be applied on a large scale.

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Abstract

Disclosed are a conductive wear-resistant macromolecular composite plate and a manufacturing process therefor, wherein the plate involves a strip-shaped steel plate as a substrate, a strip-shaped copper plate as an intermediate layer, and a conductive wear-resistant macromolecular composite material as an inner layer. The composite plate not only solves the problem of non-conductivity of macromolecular plastics, but also avoids the defects of copper net snagging and loosening. The manufacturing process forms the strip-shaped steel plate, the strip-shaped copper plate and the wear-resistant macromolecular composite material into an integrated conductive wear-resistant macromolecular composite plate in an automatic assembly line operation manner. The manufacturing process has the characteristics of a high efficiency, a fast speed, creating no waste during the manufacturing process, firm sintering, a tight structure, stable conductivity, a strong wear resistance, etc., thereby greatly improving the suitability, extensiveness and reliability of the conductive composite material. This provides a conductive wear-resistant macromolecular plate for use in machinery, automobiles, high-speed trains, aircrafts and other industries.

Description

一种高分子导电耐磨复合板材及其制作工艺Polymer conductive wear-resistant composite plate and manufacturing process thereof 技术领域Technical field
本发明涉及新型复合材料技术领域，特别涉及一种高分子导电耐磨复合板材及其制作工艺。The invention relates to the technical field of new composite materials, in particular to a polymer conductive and wear-resistant composite plate and a manufacturing process thereof.
背景技术Background technique
目前耐磨板材行业中比较先进的板材主要有：1、由钢板、铜粉、聚四氟乙烯组成，具有重量轻、无需加油自润滑的优点，但存在严重缺陷，如：耐磨层薄、耐磨时间短、耐磨性能差；2、由钢板、铜网、聚四氟乙烯组成，虽较为显著的改善了钢板、铜粉、聚四氟乙烯结构的部分缺陷，较大程度增加了耐磨层厚度，从而延长了使用寿命，但由于铜网是通过铜丝编织而成，在成品板材加工过程中铜丝受力的影响易造成抽丝、松动类缺陷，影响成品板材质量。At present, the more advanced sheet materials in the wear-resistant sheet industry are: 1. It is composed of steel plate, copper powder, and polytetrafluoroethylene. It has the advantages of light weight and self-lubrication without refueling, but there are serious defects, such as thin wear-resistant layers, Short abrasion time and poor abrasion resistance; 2. It is composed of steel plate, copper mesh, and polytetrafluoroethylene, although some defects of the steel plate, copper powder, and polytetrafluoroethylene structure have been significantly improved, and the resistance has been greatly increased. The thickness of the abrasive layer prolongs the service life, but because the copper mesh is woven from copper wire, the copper wire is affected by the force during the processing of the finished plate, which easily causes wire drawing and loosening defects, which affects the quality of the finished plate.
技术问题technical problem
在具有后视窗加热除雾功能的汽车中，需通过车门铰链的衬套使后行李箱玻璃电路接通，从而达到加热除雾功能，但由于聚四氟乙烯材料为高分子材料，不具有导电的特性，导致传统衬套的内层高分子耐磨面不导电，致使汽车厂需要通过增加线束达到导电功能，不仅增加了汽车制造成本，且增加线路漏电等风险。In a car with a rear window heating and defogging function, the rear trunk glass circuit needs to be connected through the bushing of the door hinge to achieve the heating and defogging function, but because the PTFE material is a polymer material, it does not have conductivity Due to its characteristics, the inner polymer wear surface of the traditional bushing is non-conductive, which causes the automobile factory to increase the wiring harness to achieve the conductive function, which not only increases the manufacturing cost of the car, but also increases the risks of line leakage and other risks.
技术解决方案Technical solutions
为了解决现有技术的缺陷与不足，本发明提供一种高分子导电耐磨复合板材及其制作工艺，克服了现有技术存在铜网抽丝、松动和不导电的两大技术难题，使高分子导电耐磨复合板材具有烧结牢固、结构严密、导电稳定、耐磨性能强的特点，极大的提高导电复合材料的适宜性、广泛性和可靠性。In order to solve the shortcomings and deficiencies of the prior art, the present invention provides a polymer conductive and wear-resistant composite sheet and a manufacturing process thereof, which overcomes the two major technical problems of copper mesh drawing, loosening and non-conductivity in the prior art, so The molecular conductive wear-resistant composite sheet has the characteristics of firm sintering, tight structure, stable conductivity and strong wear resistance, which greatly improves the suitability, extensiveness and reliability of conductive composite materials.
本发明采用的技术解决方案是：一种高分子导电耐磨复合板材，所述的高分子导电耐磨复合板材至下而上依次由基体层、中间层以及高分子导电内层组成，所述的基体层和中间层一体烧结，所述的中间层上设有若干通孔，所述的高分子导电内层整体包覆于中间层上。The technical solution adopted by the present invention is: a polymer conductive wear-resistant composite plate, the polymer conductive wear-resistant composite plate is composed of a base layer, an intermediate layer and a polymer conductive inner layer in order from bottom to top; The base layer and the intermediate layer are integrally sintered. The intermediate layer is provided with a plurality of through holes, and the polymer conductive inner layer is entirely covered on the intermediate layer.
所述的中间层表面上的通孔为等距离拉伸冲制的拉伸通孔，所述的拉伸通孔于中间层材料上形成圆台形带锥度凹陷结构。The through-holes on the surface of the intermediate layer are stretched through-holes punched at equal distances, and the stretched through-holes form a circular truncated cone-shaped tapered depression structure on the intermediate layer material.
所述的基体层和中间层的圆台形带锥度凹陷结构拉伸通孔大口径的一面叠合。The circular truncated cone-shaped tapered recessed structure of the base layer and the middle layer stretches a large-diameter side of the through hole.
所述的基体层为带状钢板。The base layer is a strip-shaped steel plate.
所述的中间层为带状铜板。The intermediate layer is a strip-shaped copper plate.
所述的中间层材料的圆台形带锥度凹陷结构的拉伸通孔小径为Φ1.5㎜，拉伸通孔大径为Φ2㎜，拉伸通孔高度为0.45㎜。The diameter of the tensile through hole of the circular truncated tapered depression structure of the intermediate layer material is Φ1.5㎜, the large diameter of the tensile through hole is Φ2㎜, and the height of the tensile through hole is 0.45㎜.
所述的高分子导电内层为电阻值＜1000Ω，具有导电特性的高分子导电耐磨复合材料，所述的高分子导电耐磨复合材料由聚四氟乙烯25%、玻纤10%、石墨60%、二硫化钼5%组成。The polymer conductive inner layer is a polymer conductive wear-resistant composite material having a resistance value of <1000Ω and having conductive properties. The polymer conductive wear-resistant composite material is made of polytetrafluoroethylene 25%, glass fiber 10%, and graphite. 60%, molybdenum disulfide 5% composition.
一种高分子导电耐磨复合板材的制作工艺，包括以下步骤：A manufacturing process of a polymer conductive and wear-resistant composite plate includes the following steps:
（1）放料，开料：将带状钢板和带状铜板置于开料处，将带状钢板和带状铜板按所需尺寸进行开料，形成所需规格的带状钢板和带状铜板；(1) Unloading and opening: Place the strip steel plate and the strip copper plate in the opening position, and open the strip steel plate and the strip copper plate to the required size to form the strip steel plate and strip of the required specifications. Copper plate
（2）冲孔：将带状铜板在纵横方向上等距离的连续自动冲孔，使带状铜板表面形成多个1.5×2×0.45mm带锥度的拉伸小孔；(2) Punching: continuous automatic punching of the strip-shaped copper plate at equal distances in the vertical and horizontal directions, so that the surface of the strip-shaped copper plate forms a plurality of 1.5 × 2 × 0.45mm taper stretching holes;
（3）烧结：将已冲好拉伸小孔的带状铜板和已开好料的带状钢板同时通过限位器进入电炉，在保护气氛条件下进行高温烧结，带状钢板的一面与带状铜板通孔口径大的一面叠合，其中带状钢板在下，带状铜板在上，并通过烧结形成一体，控制温度在 900℃-- 930℃，时间为700转/分；(3) Sintering: The strip-shaped copper plate that has been punched and stretched and the strip-shaped steel plate that has been opened at the same time enter the electric furnace through the stopper, and sintered at high temperature under a protective atmosphere. One side of the strip-shaped steel plate and the strip The side of the large-diameter copper plate through hole is superimposed, with the strip-shaped steel plate at the bottom and the strip-shaped copper plate at the top, and integrated by sintering. The temperature is controlled at 900 ° C-930 ° C, and the time is 700 rpm;
（4）冷却：将带状钢板和带孔的带状铜板烧结成一体后的板材通过水冷却箱进行空气自然冷却降温；(4) Cooling: sintering the strip-shaped steel plate and the strip-shaped copper plate with holes into one body to cool the air naturally through a water cooling box;
（5）注料：将烧结成一体的板材的带状铜板表面及拉伸小孔中压置入高分子导电耐磨复合材料，高分子导电耐磨复合材料包括聚四氟乙烯、玻纤、石墨和二硫化钼通过搅拌形成复合材料，各组分的用量为聚四氟乙烯25%、玻纤10%、石墨60%、二硫化钼5%；(5) Injection: Polymer conductive wear-resistant composite material is placed on the surface of the strip-shaped copper plate and tensile holes in the sintered integrated plate. The polymer conductive wear-resistant composite material includes polytetrafluoroethylene, glass fiber, Graphite and molybdenum disulfide are mixed to form a composite material, and the amount of each component is 25% of polytetrafluoroethylene, 10% of glass fiber, 60% of graphite, and 5% of molybdenum disulfide;
（6）烘干：将烧结成一体的复合板材置入干燥炉内进行烘干，烘干温度300℃，烘干时间700转/分钟；(6) Drying: Put the sintered composite plate into a drying furnace for drying. The drying temperature is 300 ° C and the drying time is 700 rpm.
（7）初轧，将烘干后的板材置于轧机下进行初轧，使板材能基本达到所需厚度；(7) Initial rolling, put the dried plate under the rolling mill for preliminary rolling, so that the plate can basically reach the required thickness;
（8）塑化，将初轧后的板材置入电炉中在保护气氛条件下进行塑化烧结，塑化温度380℃ ，网带炉转速为700转/分钟；(8) Plasticizing, put the plate after the initial rolling into an electric furnace and perform plasticizing and sintering under a protective atmosphere. The plasticizing temperature is 380 ° C and the speed of the mesh belt furnace is 700 rpm.
（9）精轧，将塑化后的板材置于精轧机上，通过滚轮进行精轧，使板材厚度的精度控制在±0.03毫米之内，形成高分子导电耐磨复合板材；(9) Finish rolling, put the plasticized plate on the finishing mill, and finish rolling by the rollers, so that the precision of the thickness of the plate is controlled within ± 0.03 mm to form a polymer conductive wear-resistant composite plate;
（10）卷材，精轧后的板材在牵引电机作用下收卷成捆。(10) Coil, the finished rolled sheet is rolled into bundles under the action of the traction motor.
所述的步骤（3）的保护气氛为70%的氢气和30%的氮气的混合气体，压力为0.7mpa-0.8mpa。The protective atmosphere in step (3) is a mixed gas of 70% hydrogen and 30% nitrogen, and the pressure is 0.7mpa-0.8mpa.
所述的步骤（8）的保护气氛为氮气，气压保持在0.6mpa-0.8mpa。The protective atmosphere in step (8) is nitrogen, and the pressure is maintained at 0.6 mpa-0.8 mpa.
有益效果Beneficial effect
本发明的有益效果是：本发明提供了一种高分子导电耐磨复合板材及其制作工艺，带状钢板为基体、带状铜板为中间层、高分子导电耐磨复合材料为内层，该复合板材即解决了高分子塑料不导电的问题，又避免了铜网抽丝、松动的缺陷，本发明的制作工艺使带状钢板、带状铜板、高分子耐磨材料通过自动流水线的作业方式使之成为一体式的高分子导电耐磨复合板材，该制作工艺具有效益高、速度快、制造过程无废料、烧结牢固、结构严密、导电稳定、耐磨性能强等特点，大大提高了导电复合材料的适宜性、广泛性和可靠性，为我国机械、汽车、高铁、航空器等行业提供了一种新型的高分子导电耐磨板材，且本发明上述的高分子导电耐磨复合板材的制备工艺可流水线化生产，生产效率高，质量好，可大规模应用。The beneficial effects of the present invention are as follows: The present invention provides a polymer conductive wear-resistant composite plate and a manufacturing process thereof. A strip-shaped steel plate is used as a substrate, a strip-shaped copper plate is used as an intermediate layer, and a polymer conductive wear-resistant composite material is used as an inner layer. The composite plate not only solves the problem of non-conductivity of the polymer plastic, but also avoids the defects of drawing and loosening of the copper mesh. The manufacturing process of the invention enables the strip steel plate, the strip copper plate, and the polymer wear-resistant material to pass through the automatic assembly line operation mode. It is made into an integrated polymer conductive wear-resistant composite sheet. The production process has the characteristics of high efficiency, fast speed, no waste during the manufacturing process, solid sintering, tight structure, stable conductivity, strong wear resistance, etc., which greatly improves the conductive composite. The suitability, extensiveness and reliability of the materials provide a new type of polymer conductive wear-resistant plate for the machinery, automobile, high-speed rail, aircraft and other industries in China, and the preparation process of the polymer conductive wear-resistant composite plate described above. Can be streamlined production, high production efficiency, good quality, can be applied on a large scale.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明工艺流程图。FIG. 1 is a process flow chart of the present invention.
图2为本发明铜板拉伸孔结构示意图。FIG. 2 is a schematic view showing a structure of a drawing hole of a copper plate according to the present invention.
图3为本发明高分子导电耐磨复合板材结构示意图。FIG. 3 is a schematic structural diagram of a polymer conductive and wear-resistant composite plate according to the present invention.
本发明的实施方式Embodiments of the invention
为了更清楚地说明本发明内容，用具体实施例说明如下，具体实施例不限定本发明内容范围。In order to explain the content of the present invention more clearly, specific embodiments are described below, and the specific embodiments do not limit the scope of the present invention.
一种高分子导电耐磨复合板材，所述的高分子导电耐磨复合板材至下而上依次由基体层、中间层以及导电内层组成，所述的基体层为钢板，或其他金属板材，优选为带状钢板,采用SPCC带状钢板，尺寸为0.5㎜×1000m，所述的中间层为铜板或其他金属板材，优选为带状铜板，采用QSN6.5-0.1带状铜板，QSN6.5-0.1带状铜板具有高的强度、弹性、耐磨性和抗磁性，在热态和冷态下压力加工性良好，对电火花有较高的抗燃性，可焊接和钎焊，可切削性良好，在大气、淡水中耐蚀。尺寸为6.5mm-0.1m，所述的高分子导电内层为高分子导电耐磨复合材料，所述的高分子导电耐磨复合材料由聚四氟乙烯25%、玻纤10%、石墨60%、二硫化钼5%组成。所制得板材即加强了耐磨性能又具有导电特性。所述的高分子导电耐磨复合材料为由聚四氟乙烯、玻纤、石墨和二硫化钼通过搅拌形成复合材料，所述的基体层和中间层同步组合一体烧结，其中带状钢板在下，带状铜板在上。所述的中间层表面纵横方向上设有若干等距离拉伸冲制的拉伸通孔，所述的拉伸通孔于中间层材料上形成圆台形带锥度凹陷结构，圆台形带锥度凹陷结构增加了带状铜板整体的结构强度，也使整体包覆于带状铜板内的高分子导电内层与带状铜板间不易脱离，增加了两者间的结合强度，且通过拉伸通孔注入的高分子导电内层材料更容易均匀覆盖带状铜板，所述的中间层材料的圆台形凹陷结构的拉伸通孔小径为1.5㎜，拉伸通孔大径为2㎜，拉伸通孔高度为0.45㎜。所述的基体层和中间层的圆台形带锥度凹陷结构拉伸通孔大口径的一面叠合，所述的高分子导电内层整体包覆于中间层上。A polymer conductive wear-resistant composite plate, the polymer conductive wear-resistant composite plate is composed of a base layer, an intermediate layer and a conductive inner layer in order from bottom to top, and the base layer is a steel plate or other metal plate, It is preferably a strip steel plate, using SPCC strip steel with a size of 0.5㎜ × 1000m, the intermediate layer is a copper plate or other metal plate, preferably a strip copper plate, using QSN6.5-0.1 strip copper plate, QSN6.5 -0.1 Strip copper plate has high strength, elasticity, abrasion resistance and magnetic resistance. It has good press workability in hot and cold states, has high flame resistance to electric sparks, can be welded and brazed, and can be cut. Good performance, corrosion resistance in the atmosphere and fresh water. The size is 6.5mm-0.1m. The polymer conductive inner layer is a polymer conductive wear-resistant composite material. The polymer conductive wear-resistant composite material is made of polytetrafluoroethylene 25%, glass fiber 10%, and graphite 60. %, Molybdenum disulfide 5% composition. The prepared plate has both enhanced abrasion resistance and conductive properties. The polymer conductive and wear-resistant composite material is a composite material formed by polytetrafluoroethylene, glass fiber, graphite, and molybdenum disulfide through stirring. The matrix layer and the intermediate layer are simultaneously combined and sintered together. The strip steel plate is below. A strip of copper is on it. The intermediate layer surface is provided with a plurality of equal-length stretch punching through-holes in the vertical and horizontal directions. The stretching through-holes form a circular truncated cone-shaped tapered depression structure on the intermediate layer material, and the circular truncated cone-shaped tapered depression structure. Increased the overall structural strength of the strip-shaped copper plate, and also made it difficult to separate the polymer conductive inner layer and the strip-shaped copper plate that are entirely enclosed in the strip-shaped copper plate, increased the bonding strength between the two, and injected through the stretched through hole The polymer conductive inner layer material is easier to uniformly cover the strip-shaped copper plate. The circular trough-shaped depression structure of the intermediate layer material has a small diameter of the drawing through hole of 1.5㎜, a large diameter of the drawing through hole of 2㎜, and a drawing through hole. The height is 0.45㎜. The base layer and the intermediate layer of the circular truncated cone-shaped tapered recessed structure have a large-diameter side of the tensile through hole superimposed, and the polymer conductive inner layer is entirely covered on the intermediate layer.
下面结合附图1对本发明高分子导电耐磨复合板材及其制作工艺做具体的详细说明，高分子导电耐磨复合板材及其制作工艺包括以下步骤：The polymer conductive wear-resistant composite plate of the present invention and the manufacturing process thereof will be described in detail below with reference to FIG. 1. The polymer conductive wear-resistant composite plate and the manufacturing process thereof include the following steps:
1、放料，通过牵引电机分别将带状钢板和带状铜板进行放料，放料速度由调速电机控制，其钢板采用SPCC0.5㎜×1000m，其铜板采用QSN6.5-0.1，QSN6.5-0.1带状铜板具有高的强度、弹性、耐磨性和抗磁性，在热态和冷态下压力加工性良好，对电火花有较高的抗燃性，可焊接和钎焊，可切削性良好，在大气、淡水中耐蚀；1. Unloading, the strip steel plate and the strip copper plate are unloaded by the traction motor. The discharge speed is controlled by the speed regulating motor. The steel plate is SPCC0.5㎜ × 1000m, and the copper plate is QSN6.5-0.1, QSN6. .5-0.1 Strip copper plate has high strength, elasticity, abrasion resistance and magnetic resistance, good press workability in hot and cold state, high flame resistance to electric spark, can be welded and brazed, Good machinability, corrosion resistance in the atmosphere and fresh water;
2、开料，将带状钢板和带状铜板按所需尺寸，通过上下圆盘刀片进行开料，形成所需的带状钢板和带状铜板；2. Opening the material, the strip steel plate and the strip copper plate are opened according to the required size by the upper and lower disc blades to form the required strip steel plate and strip copper plate;
3、冲孔，将开好所需尺寸的带状铜板置于自动冲床上，在铜板纵横方向上等距离的连续自动冲拉伸通孔，拉伸通孔为等距离拉伸冲制的拉伸通孔，所述的拉伸通孔于中间层材料上形成圆台形带锥度凹陷结构。通孔直径和通孔高度为1.5㎜×2㎜×0.45㎜即通孔小径×通孔大径×通孔高度，圆台形带锥度凹陷结构增加了带状铜板整体的结构强度，也使整体包覆于带状铜板内的高分子导电内层与带状铜板间不易脱离，增加了两者间的结合强度，且通过拉伸通孔注入的高分子导电内层材料更容易均匀覆盖带状铜板；3. Punching, placing the strip-shaped copper plate with the required size on an automatic punching machine, and continuously and automatically punching and drawing through holes at equal distances in the vertical and horizontal directions of the copper plate. The drawing through holes are drawn at equal distances. A through hole is formed, and the stretched through hole forms a circular truncated cone-shaped tapered depression structure on the intermediate layer material. The diameter of the through hole and the height of the through hole are 1.5㎜ × 2㎜ × 0.45㎜, that is, the small diameter of the through hole × the large diameter of the through hole × the height of the through hole. The circular truncated tapered depression structure increases the overall structural strength of the strip copper plate and also makes the overall package The polymer conductive inner layer covered with the strip-shaped copper plate is not easy to separate from the strip-shaped copper plate, which increases the bonding strength between the two, and the polymer conductive inner layer material injected through the tensile through hole is easier to uniformly cover the strip-shaped copper plate. ;
4、烧结，将同样宽度的带状钢板和冲孔后的带状铜板通过限位器进入网带式电炉进行高温烧结，控制温度在900 ℃--930 ℃，网带转速为700转/分钟 ，带状钢板的一面与带状铜板通孔口径大的一面叠合，其中带状钢板在下，带状铜板在上，并通过烧结形成一体，；为了防止板材氧化，烧结过程需气体保护，采用70%的氢气和30%的氮气作为混合气体，压力保持在0.7mpa-0.8mpa；4, sintering, the same width of the strip-shaped steel plate and punched strip-shaped copper plate through the stopper into the mesh belt electric furnace for high temperature sintering, control the temperature between 900 ℃-930 ℃, the speed of the mesh belt is 700 rpm One side of the strip steel plate is superimposed with the side with a large aperture of the strip copper plate. The strip steel plate is below, the strip copper plate is above, and it is integrated by sintering. In order to prevent oxidation of the plate, the sintering process requires gas protection. 70% hydrogen and 30% nitrogen as a mixed gas, the pressure is maintained at 0.7mpa-0.8mpa;
5、冷却，将所需的带状钢板和带孔的带状铜板烧结成一体后的板材从电炉尾部炉口退出，通过冷却水箱进行空气自然冷却；冷却水箱四周是水，水箱间中为空心，作为板材冷却的通道；5. Cooling, sintering the required strip steel plate and perforated strip copper plate into an integrated plate exit from the tail furnace mouth of the electric furnace, and the air is naturally cooled through the cooling water tank; the cooling water tank is surrounded by water, and the water tank is hollow. As a cooling channel for the board;
6、注料，将冷却后的板材置于工作台上，在带状铜板表面上及拉伸小孔中通过轧机压置入已搅拌好的高分子导电耐磨复合材料，高分子导电耐磨复合材料优选包括聚四氟乙烯、玻纤、石墨和二硫化钼，各组分的用量为聚四氟乙烯25%、玻纤10%、石墨60%、二硫化钼5%，即加强了耐磨性能又具有导电特性；6.Inject the material, place the cooled plate on the workbench, and put the stirred polymer conductive wear-resistant composite material on the surface of the strip copper plate and in the drawing hole through the rolling mill. The composite material preferably includes polytetrafluoroethylene, glass fiber, graphite, and molybdenum disulfide. The amount of each component is 25% of polytetrafluoroethylene, 10% of glass fiber, 60% of graphite, and 5% of molybdenum disulfide. The grinding performance has conductive properties;
7、烘干，将注料后的板材置入干燥炉内进行烘干，烘干温度300℃ ，网带炉转速为700 转/分钟；7. Drying. Put the injected sheet into the drying furnace for drying. The drying temperature is 300 ° C. The speed of the mesh belt furnace is 700 rpm.
8、初轧，将烘干后的板材置于轧机下进行初轧，使板材能基本达到所需厚度；8. Initial rolling, put the dried plate under the rolling mill for preliminary rolling, so that the plate can basically reach the required thickness;
9、塑化，将初轧后的板材置入网带式电炉中进行塑化烧结，塑化温度380℃，网带炉转速为700转/分钟，炉内由氮气进行保护，气压保持在0.6mpa-0.8mpa；9. Plasticizing: Put the rolled sheet into a mesh belt electric furnace for plasticizing and sintering. The plasticizing temperature is 380 ° C. The speed of the mesh belt furnace is 700 rpm. The furnace is protected by nitrogen and the air pressure is maintained at 0.6. mpa-0.8mpa;
10、精轧，将塑化后的板材置于精轧机上，通过滚轮进行精轧，使板材厚度的精度控制在±0.03毫米之内，形成图3所示的高分子导电耐磨复合板材；10. Finish rolling. Place the plasticized plate on the finishing mill and finish rolling by rollers to control the precision of the thickness of the plate within ± 0.03 mm to form a polymer conductive wear-resistant composite plate as shown in Figure 3;
11、卷材，精轧后的板材在牵引电机作用下收卷成捆。11. Coiled material, the finished rolled sheet is rolled into a bundle under the action of a traction motor.
本发明制作工艺具有效益高、速度快、制造过程无废料、烧结牢固、结构严密、导电稳定、耐磨性能强等特点，大大提高了导电复合材料的适宜性、广泛性和可靠性。为我国机械、汽车、高铁、航空器等行业提供了一种结构稳定的新型的高分子导电耐磨板材，且本发明上述的高分子导电耐磨复合板材的制备工艺可适用于自动流水线化生产，生产效率高，质量好，可大规模应用。The production process of the invention has the characteristics of high efficiency, fast speed, no waste during the manufacturing process, firm sintering, tight structure, stable conductivity, strong abrasion resistance, etc., and greatly improves the suitability, extensiveness and reliability of conductive composite materials. A new type of polymer conductive wear-resistant plate with stable structure is provided for the machinery, automobile, high-speed rail, aircraft and other industries in China, and the preparation process of the polymer conductive wear-resistant composite plate of the present invention can be applied to automatic assembly line production. High production efficiency, good quality, can be applied on a large scale.
以上所述仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理前提下的若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and any technical solution falling under the idea of the present invention belongs to the protection scope of the present invention. It should be noted that for those skilled in the art, without departing from the principle of the present invention, several improvements and retouches should be considered as the scope of protection of the present invention.

Claims (7)

  1. 一种高分子导电耐磨复合板材，其特征在于，所述的高分子导电耐磨复合板材至下而上依次由基体层、中间层以及高分子导电内层组成，所述的基体层和中间层一体烧结，所述的中间层上设有若干通孔，所述的高分子导电内层整体包覆于中间层上。A polymer conductive wear-resistant composite sheet, characterized in that the polymer conductive wear-resistant composite sheet is composed of a base layer, an intermediate layer, and a polymer conductive inner layer in order from bottom to top, and the base layer and the middle The layers are sintered integrally. The intermediate layer is provided with a plurality of through holes, and the polymer conductive inner layer is entirely covered on the intermediate layer.
  2. 根据权利要求1所述的一种高分子导电耐磨复合板材，其特征在于，所述的中间层表面上的通孔为等距离拉伸冲制的拉伸通孔，所述的拉伸通孔于中间层材料上形成圆台形带锥度凹陷结构, 所述的基体层与中间层的圆台形带锥度凹陷结构拉伸通孔大口径的一面通过烧结工艺形成一体。The polymer conductive and wear-resistant composite sheet according to claim 1, wherein the through-holes on the surface of the intermediate layer are stretched through-holes punched by equidistance stretching, and the stretched through-holes The holes form a circular truncated tapered recessed structure on the intermediate layer material, and the substrate layer and the circular truncated tapered recessed structure of the intermediate layer stretch the large-diameter side of the through-hole to form a body through sintering.
  3. 根据权利要求1所述的一种高分子导电耐磨复合板材，其特征在于，所述的基体层为钢板。The polymer conductive and wear-resistant composite sheet according to claim 1, wherein the base layer is a steel plate.
  4. 根据权利要求1所述的一种高分子导电耐磨复合板材，其特征在于，所述的中间层为铜板。The polymer conductive and wear-resistant composite sheet according to claim 1, wherein the intermediate layer is a copper plate.
  5. 根据权利要求2所述的一种高分子导电耐磨复合板材，其特征在于，所述的中间层材料的圆台形带锥度凹陷结构的拉伸通孔小径为Φ1.5㎜，拉伸通孔大径为Φ2㎜，拉伸通孔高度为0.45㎜。The polymer conductive and wear-resistant composite sheet according to claim 2, wherein the circular through-hole shape of the intermediate layer material with the tapered depression structure has a tensile through-hole diameter of Φ1.5㎜ and a tensile through-hole The large diameter is Φ2㎜, and the height of the drawing through hole is 0.45㎜.
  6. 根据权利要求1所述的一种高分子导电耐磨复合板材，其特征在于，所述的高分子导电内层为电阻值＜1000Ω，具有导电特性的高分子导电耐磨复合材料，所述的高分子导电耐磨复合材料由聚四氟乙烯25%、玻纤10%、石墨60%、二硫化钼5%组成。The polymer conductive wear-resistant composite sheet according to claim 1, wherein the polymer conductive inner layer is a polymer conductive wear-resistant composite material having a resistance value of <1000Ω and having conductive properties, and the The polymer conductive and wear-resistant composite material is composed of 25% polytetrafluoroethylene, 10% glass fiber, 60% graphite, and 5% molybdenum disulfide.
  7. 一种高分子导电耐磨复合板材的制作工艺，其特征在于，包括以下步骤：A manufacturing process of a polymer conductive and wear-resistant composite plate is characterized in that it includes the following steps:
    （1）放料，开料：将钢板和铜板置于开料处，将钢板和铜板按所需尺寸进行开料，形成所需规格的钢板和铜板；(1) Unloading and opening: Place the steel plate and copper plate at the opening, and open the steel plate and copper plate to the required size to form the required specifications of steel plate and copper plate;
    （2）冲孔：将铜板在纵横方向上等距离的连续自动冲孔，使铜板表面形成多个1.5×2×0.45mm带锥度的拉伸小孔；(2) Punching: continuous automatic punching of the copper plate at equal distances in the vertical and horizontal directions to form a plurality of 1.5 × 2 × 0.45mm taper stretching holes on the surface of the copper plate;
    （3）烧结：将已冲好拉伸小孔的铜板和已开好料的钢板同时通过限位器进入电炉，在保护气氛条件下进行高温烧结，钢板的一面与铜板通孔口径大的一面叠合，其中带状钢板在下，带状铜板在上，并通过烧结形成一体，控制温度在 900℃-- 930℃，时间为700转/分，保护气氛为70%的氢气和30%的氮气的混合气体，压力为0.7mpa-0.8mpa；(3) Sintering: The copper plate that has been punched and stretched and the already-opened steel plate enter the electric furnace through the stopper at the same time, and sintered at high temperature under a protective atmosphere. The side of the steel plate and the side of the copper plate with a large aperture Laminated, with strip steel plate below, strip copper plate above, and integrated by sintering. Control temperature is 900 ° C-930 ° C, time is 700 rpm, protective atmosphere is 70% hydrogen and 30% nitrogen Mixed gas with a pressure of 0.7mpa-0.8mpa;
    （4）冷却：将钢板和带孔的铜板烧结成一体后的板材通过水冷却箱进行空气自然冷却降温；(4) Cooling: sintering the steel plate and the copper plate with holes into one body to cool the air naturally through a water cooling box;
    （5）注料：将烧结成一体的板材的铜板表面及拉伸小孔中压置入高分子导电耐磨复合材料；(5) Injection: The copper plate surface and tensile holes of the sintered plate are placed in a polymer conductive wear-resistant composite material under pressure;
    （6）烘干：将烧结成一体的复合板材置入干燥炉内进行烘干，烘干温度300℃，烘干时间700转/分钟；(6) Drying: Put the sintered composite plate into a drying furnace for drying. The drying temperature is 300 ° C and the drying time is 700 rpm.
    （7）初轧，将烘干后的板材置于轧机下进行初轧，使板材能基本达到所需厚度；(7) Initial rolling, put the dried plate under the rolling mill for preliminary rolling, so that the plate can basically reach the required thickness;
    （8）塑化，将初轧后的板材置入电炉中在保护气氛条件下进行塑化烧结，塑化温度380℃ ，网带炉转速为700转/分钟；(8) Plasticizing, put the plate after the initial rolling into an electric furnace and perform plasticizing and sintering under a protective atmosphere. The plasticizing temperature is 380 ° C and the speed of the mesh belt furnace is 700 rpm.
    （9）精轧，将塑化后的板材置于精轧机上，通过滚轮进行精轧，使板材厚度的精度控制在±0.03毫米之内，形成高分子导电耐磨复合板材；(9) Finish rolling, put the plasticized plate on the finishing mill, and finish rolling by the rollers, so that the precision of the thickness of the plate is controlled within ± 0.03 mm to form a polymer conductive wear-resistant composite plate;
    （10）卷材，精轧后的板材在牵引电机作用下收卷成捆，制板过程完毕。(10) Coiled material, the finished rolled plate is rolled up into bundles under the action of the traction motor, and the plate making process is completed.
PCT/CN2018/100196 2018-08-13 2018-08-13 Conductive wear-resistant macromolecular composite plate and manufacturing process therefor WO2020034060A1 (en)

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