WO2011120348A1 - 热固性聚酰亚胺耐磨自润滑斜盘及制备方法 - Google Patents

热固性聚酰亚胺耐磨自润滑斜盘及制备方法 Download PDF

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Publication number
WO2011120348A1
WO2011120348A1 PCT/CN2011/070421 CN2011070421W WO2011120348A1 WO 2011120348 A1 WO2011120348 A1 WO 2011120348A1 CN 2011070421 W CN2011070421 W CN 2011070421W WO 2011120348 A1 WO2011120348 A1 WO 2011120348A1
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self
wear
lubricating
swash plate
resistant
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PCT/CN2011/070421
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English (en)
French (fr)
Inventor
孙志华
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浙江长盛滑动轴承有限公司
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Publication of WO2011120348A1 publication Critical patent/WO2011120348A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/18—Lubricating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/10—Syntactic

Definitions

  • Thermosetting polyimide wear-resistant self-lubricating swash plate and preparation method The application is submitted to the Chinese Patent Office on March 30, 2010, and the application number is 201 01 01 38688.
  • the invention name is "thermosetting polyimide wear-resistant from The priority of the Chinese patent application of the lubricating swash plate and the preparation method thereof is incorporated herein by reference.
  • the invention relates to a swash plate of an automobile air conditioner compressor, wherein the swash plate is composed of a metal base body and a sliding contact layer, in particular, a self-lubricating oblique L 0 disk of a modified sliding contact layer based on a thermosetting polyimide as a base material and Preparation.
  • the swash plate is a key component of the compressor of the automotive air conditioning system.
  • the swash plate is arranged on the drive shaft in the compressor shaft cavity.
  • the common swash plate is composed of a base body and a sliding contact layer.
  • the base body is made of iron base, steel base and aluminum base.
  • One of L 5 is formed by machining, and the sliding contact layer contains hard spots of graphite, molybdenum disulfide, polytetrafluoroethylene, lead, binder, and calcium carbide or alumina fine particles, and the thickness of the sliding contact layer is 20 ⁇ ⁇ 30 ⁇ .
  • a coating composition for a sliding member of Dow Corning Asia Co., Ltd. (Chinese Patent Publication No. CN158 3918A), the technical proposal of which is a coating composition for a sliding member, containing a polyamideimide resin and solid lubricating And prepared by mixing these components, the sliding film made of the coating composition for the sliding member has satisfactory sliding properties, and the solution is characterized by a novel lead-free formulation.
  • the Toyota Toyota Automatic Loom (China Patent Publication No. CN1401 898A) has a sliding member and a compressor.
  • the technical solution is to form a thermoplastic polyimide containing a solid lubricant on a swash plate and a shoe as a sliding member of the compressor. coating.
  • the thermoplastic polyimide is a thermoplastic resin, and polytetrafluoroethylene can be used for the solid lubricant, so that a compressor can be obtained, which includes a change in sliding characteristics. Good sliding parts.
  • the swash plate made by the above two technical solutions has improved in technical performance, but there are still problems in the dry friction test. Summary of the invention
  • the object of the present invention is to provide a thermosetting polyimide wear-resistant self-lubricating swash plate which has a long service life and can withstand dry friction in a short period of time and a preparation method thereof.
  • the metal substrate is composed of a metal base and a self-lubricating wear-resistant coating
  • the metal base is one of an iron base, a ferro-copper sintered base, a copper base, an aluminum base, and a radical.
  • the metal substrate is made by mechanical processing; it is coated on the annular plane on both sides of the metal substrate.
  • the self-lubricating wear-resistant coating constitutes the swash plate annular plane working layer; characterized in that: the wear-resistant coating composition of the self-lubricating wear-resistant coating comprises, by weight percentage: Thermosetting polyimide 40 ⁇ 65% and solid lubricant 35 ⁇ 60%.
  • the solid lubricant is one or a mixture of two or three kinds of molybdenum disulfide, polytetrafluoroethylene, and graphite.
  • the average particle diameter of the solid lubricant is preferably not more than 15 ⁇ .
  • the self-lubricating wear-resistant coating of the present invention may further comprise a total mass percentage of 0.1 to 1%.
  • the friction modifier refers to one of Cr0 2 , S i0 2 , AI 2 0 3 , Zn0, S iC, S i or any mixture of them.
  • the addition of the friction modifier greatly improves the wear resistance and seizure resistance of the swash plate.
  • thermosetting polyimide wear-resistant self-lubricating swash plate according to the present invention, wherein the coating method of the self-lubricating wear-resistant coating is:
  • spraying 1 spraying room ambient temperature and humidity, temperature 20 °C ⁇ 25 °C, humidity below 50%; 2 coating 15 layer surface uniform without leakage area and air bubbles;
  • the base of the sliding contact layer of the present invention is a thermosetting polyimide which is a thermosetting resin.
  • the thermosetting resin differs from the thermoplastic resin in that the thermosetting resin is cured after being heated, and can no longer be melted and cannot be reworked. stable.
  • the thermoplastic resin melts and deforms when heated, and does not solidify upon cooling; chemically, the thermosetting resin undergoes a crosslinking reaction during molding to form a fixed molecular network structure.
  • the thermoplastic resin does not undergo any chemical reaction when processed at high temperatures, and the polymer molecules remain linear long chains.
  • Thermosetting polyimide has excellent mechanical properties, excellent flame resistance, wear resistance, solvent resistance, high temperature resistance, and is an important resin matrix for high performance composite.
  • the invention adopts a thermosetting polyimide resin as a base body, and adds a solid lubricant filler of graphite, molybdenum disulfide and polytetrafluoroethylene to form a self-lubricating anti-wear agent coated on the annular plane on both sides of the swash plate metal substrate, Curing after heating at a high temperature enables the solid lubricant to remain firmly in the resin coating of the thermosetting polyimide.
  • the resin coating has good seizure resistance and initial suitability at high temperatures, and sufficient durability and durability. Heat. It is more suitable for self-lubricating swash plate. It has more obvious high temperature and wear resistance compared with thermoplastic polyimide as coating material. It has good wear resistance and adhesion, in technical performance and Significant improvement or improvement in service life.
  • thermosetting polyimide is used as a matrix material, and a resin coated swash plate made of a solid lubricant and a friction modifier is added, and its performance is superior to that of a thermosetting polyamideimide, a thermoplastic polyamideimide, a thermoplastic polyimide.
  • the amine is a swash plate made of a base material.
  • the resin coating does not contain lead.
  • FIG. 1 is a schematic cross-sectional view of a thermosetting polyimide wear-resistant self-lubricating swash plate;
  • Figure 2 is a schematic diagram of friction and wear test;
  • FIG 3 is a state diagram of the thermosetting polyimide wear-resistant self-lubricating swash plate of Example 1;
  • Figure 4 is a state diagram of the thermosetting polyamideimide self-lubricating swash plate of Comparative Example 1;
  • Figure 5 is a comparative example 2 State diagram of thermoplastic polyamide imide self-lubricating swash plate test;
  • 5 Fig. 6 is a state diagram of Comparative Example 3 thermoplastic polyimide self-lubricating swash plate test.
  • thermosetting polyimide wear-resistant self-lubricating swash plate 1 of the present invention is composed of a metal base 2 and a self-lubricating wear-resistant coating 3, which is an iron-based, iron-copper sintered base, a copper base, an aluminum base, One of the bases, the metal substrate 2 is made by mechanical processing; in order to increase the bonding strength between the metal substrate 2 and the self-lubricating wear-resistant coating 3, the metal substrate 2 needs to be phosphatized or sandblasted and Phosphating surface treatment
  • a self-lubricating wear-resistant coating 3 is formed on the annular planes on both sides of the metal substrate 2, and the self-lubricating wear-resistant coating 3 constitutes an annular planar working layer of the swash plate 1; the self-lubricating wear-resistant coating 3
  • the composition of the wear-resistant coating includes, by weight, 40 to 65% of the thermosetting polyimide and 35 to 60% of the solid lubricant.
  • the solid lubricant is selected from at least one of two types of molybdenum molybdenum (MoS 2 ), polytetrafluoroethylene (PTFE), and graphite materials, or a mixture of two or three. 2 ⁇
  • the average particle size of the solid lubricant is not more than 15 ⁇ ⁇ , especially 0. 2 ⁇
  • the friction modifier refers to one of Cr0 2 , S i0 2 , AI 2 0 3 , Zn0, S iC, S i or a mixture of any of them.
  • thermosetting polyimide wear-resistant self-lubricating swash plate 1 wherein the self-lubricating wear-resistant coating 3 is coated in the following order:
  • self-lubricating wear-resistant coating preparation 1 according to the above self-lubricating wear-resistant coating ratio; 2 preparation room ambient temperature and humidity: temperature 20 °C ⁇ 25 °C, humidity below 50%; 3 mixing and stirring: use The solvent N-mercaptopyrrolidone is used as a solvent, a thermosetting polyimide, a solid lubricant is added, and a friction modifier is added to the coating mixture to fully stir the coating mixture for 2 to 4 hours, without obvious bubbles; (2), spraying: 1 spray room ambient temperature and humidity, temperature 20 ° C ⁇ 25 ° C, humidity below 50%; 2 using the coating machine to spray the surface of the swash plate, the surface of the coating is no leakage area and bubbles ;
  • oven initial set temperature 5 (TC or so, swashplate single-sided drying and heating at 50 ° C, 10 h linear temperature rise to 300 ° C after the heating is stopped, after natural cooling, after the furnace
  • the second side is sprayed; the second side of the swash plate is heated and heated at 50 ° C, 10 h linear temperature rise to 300 ° C, after 1 h of heat preservation, and then linearly heated to 380 ° C at 300 ° C, lh, and then kept for 1 h. Stop heating and naturally cool out.
  • the surface of the metal substrate 2 can also be subjected to phosphating or sand blasting and phosphating prior to the spraying process.
  • the self-lubricating wear-resistant coating 3 on the annular plane on both sides of the metal substrate 2 is finally subjected to precision machining, and the single-sided thickness of the self-lubricating wear-resistant coating 3 after processing is controlled at 20 ⁇ 3 () ⁇ , both sides of the ring
  • the plane parallelism is 8 ⁇ m.
  • the coating methods of the self-lubricating wear-resistant coating 3 of the above embodiments are as follows: (1) Preparation of self-lubricating wear-resistant coating: 1 According to the corresponding self-lubricating wear-resistant coating ratio; 2 Preparation room ambient temperature and humidity: temperature 20 ° C ⁇ 25 ° C, humidity below 50%; 3 mixing and stirring: Solvent N-mercaptopyrrolidone as solvent, adding corresponding thermosetting polyimide, solid lubricant, friction modifier with friction modifier, configured to stir the coating mixture for 2 ⁇ 4h, no obvious bubbles
  • Spraying 1 spraying room ambient temperature and humidity, temperature 20 °C ⁇ 25 °C, humidity below 50%; 2 spraying the surface of the swash plate with the coating machine, the surface of the coating is not leaking spray area and air bubbles;
  • the second side of the swash plate is heated and heated at 50 ° C, 10 h linear temperature rise to 300 ° C, after 1 h of heat preservation, then 300 ° C, lh linear temperature rise to 380 ° C and then heat lh, stop heating and naturally cooled out;
  • thermosetting L5 polyamideimide, thermoplastic polyamideimide and thermoplastic polyimide are selected to replace the thermosetting property of Example 1 respectively.
  • Polyimide, other formula materials and content are the same, and the sample parts are used for comparison test.
  • the metal substrates used are all 45 steel. The specific comparison is implemented as follows:
  • Wear-resistant self-lubricating swash plate coating according to the technical solution disclosed by Dow Corning Asia Co., Ltd. (Chinese Patent Publication No. 0 CN1583918A), from 55% thermosetting polyamideimide, 15% polytetrafluoroethylene, 10% molybdenum disulfide 19.5% graphite, 0.5% silicon carbide.
  • the solvent N-mercaptopyrrolidone was used as a solvent to be sprayed on both sides of the swash plate metal substrate 2, dried and sintered in an oven furnace, and then processed into a wear-resistant coating of 0.020 to 0.035 mm thick by car and grinding.
  • the disclosed technical solution consists of 55% thermoplastic polyamideimide, 15% polytetrafluoroethylene, 10% molybdenum disulfide, 19.5% graphite, 0.5% silicon carbide.
  • Solvent N-mercaptopyrrolidone 035 ⁇ 0. 035mm ⁇ 3 ⁇ The agent is configured to be sprayed on both sides of the swash plate metal substrate 2, dried and sintered in an oven, and then processed by a car, grinding to 0. 020 ⁇ 0. 035mm thick wear-resistant coating 3.
  • Wear-resistant self-lubricating swash plate coating according to the technical solution disclosed by Toyota Automatic Loom (China Patent Publication No. CN1401898A), 55% thermoplastic polyimide, 15% polytetrafluoroethylene, 10% molybdenum disulfide 19. Composition of 5% graphite and 0.5% silicon carbide. 020 ⁇ 0. 030mm ⁇ 020 ⁇ 0. 030mm thick wear-resistant coating is sprayed on the swash plate metal substrate 2, the oven is dried and sintered in the oven, and then processed into a 0. 020 ⁇ 0. 030mm thick wear-resistant coating 3.
  • test pieces prepared in accordance with Example 1 and Comparative Example 1, Example 2, and Example 3 were subjected to the end face dry friction and wear test, and the test was carried out on a dedicated friction and wear test apparatus 4.
  • three semi-steel balls 5 with a diameter of 12 mm and a hardness of HV880 are used as the pair of grinding members, and three semi-steel balls 5 are evenly distributed on the annular plane of the swash plate 1, and the grinding members and the inclined members are inclined.
  • the load P between the discs 1 is 5 MPa
  • the relative rotational speed V of the grinding member and the swash plate 1 is 3.35 m/s
  • the time is set to 40 min, as shown in Fig. 2.
  • the test results are shown in the following table:

Description

热固性聚酰亚胺耐磨自润滑斜盘及制备方法 本申请要求于 201 0 年 3 月 30 日提交中国专利局、 申请号为 201 01 01 38688. 发明名称为 "热固性聚酰亚胺耐磨自润滑斜盘及制备方法" 5 的中国专利申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及一种汽车空调压缩机斜盘，其中斜盘是由金属基体和滑动接触 层组成，特别涉及以热固性聚酰亚胺为基础材料的改性滑动接触层的自润滑斜 L 0 盘及制备方法。 背景技术
斜盘是汽车空调系统压缩机的关键部件，该斜盘设置在压缩机轴腔内的驱 动轴上， 通常的斜盘是由基体和滑动接触层组成， 基体采用铁基、 钢基、 铝基
L 5 中的一种通过机械加工制成， 滑动接触层含有石墨、 二硫化钼、 聚四氟乙烯、 铅、 粘结剂和碳化钙或氧化铝微粒子的硬质点， 滑动接触层的厚度为 20μηι ~ 30μηι。采用上述的技术解决方案，压缩机的斜盘与滑履间的润滑性能得以改善， 而提升滑动接触层性能是斜盘性能提升的关键要素。
多年来业内在不断对滑动接触层进行开发研究，一代又一代新品斜盘孕育
>0 而生， 使得斜盘的性能不断提高， 以满足市场的更高需求。 如： 日本道康宁亚 洲株式会社（中国专利公开号 CN158 3918A ) 的用于滑动件的涂料组合物， 其 技术方案是一种用于滑动件的涂料组合物，含有聚酰胺酰亚胺树脂和固体润滑 剂， 并通过混合这些成份制备， 由用于滑动件的涂料组合物制成的滑动膜具有 令人满意的滑动性能， 该方案的特点是一种新型的无铅配方。 又如日本株式会
15 社丰田自动织机（中国专利公开号 CN1401 898A ) 的滑动部件和压缩机， 其技 术方案是在作为压缩机的滑动部件的斜盘和滑履上形成一含有固态润滑剂热 塑性聚酰亚胺涂层。 热塑性聚酰亚胺是一种热塑性树脂，对于该固态润滑剂可 以采用聚四氟乙烯， 因此可以获得一种压缩机， 该压缩机包括滑动特性得到改 善的滑动部件。 以上两种技术方案制成的斜盘对比前期的斜盘，在技术性能上 都有所提高， 但在进行干摩擦试验中还是出现了问题。 发明内容
5 本发明的目的是提供一种使用寿命长，能在短期内承受干摩擦的热固性聚 酰亚胺耐磨自润滑斜盘及制备方法。
本发明解决上述问题采用的技术方案是：是由金属基体和自润滑耐磨涂层 组成， 所述金属基体为铁基、 铁铜烧结基、 铜基、 铝基、 辞基中的一种， 所述 金属基体是通过机械加工方式制成的；在金属基体两侧环形平面上涂覆有自润
L0 滑耐磨涂层， 该自润滑耐磨涂层构成所述斜盘环形平面工作层； 其特征在于： 所述的自润滑耐磨涂层的耐磨涂料组成成份按重量百分含量包括：热固性聚酰 亚胺 40 ~ 65%和固体润滑剂 35 ~ 60%。 所述的固体润滑剂是二硫化钼、 聚四氟 乙烯、石墨中的一种或两种或三种混合使用。 固体润滑剂的平均粒径优选不大 于 15 μηι。 本发明的自润滑耐磨涂料中还可加入占总质量百分比 0. 1 ~ 1%的摩
L5 擦调节剂， 所述的摩擦调节剂是指 Cr02、 S i02、 AI203、 Zn0、 S iC、 S i 的一种 也可是它们中的任何几种混合物。摩擦调节剂的加入极大的提高了斜盘的耐磨 损性和抗咬合性。
本发明所述的热固性聚酰亚胺耐磨自润滑斜盘的生产工艺，其中自润滑耐 磨涂层的涂覆方法依次是：
10 1、 自润滑耐磨涂料的配制： ①按以上自润滑耐磨涂料配比； ②配制室环 境温湿度： 温度 20 °C ~ 25 °C , 湿度 50%以下； ③混合搅拌： 用溶剂 N-曱基吡 咯烷酮作为溶剂， 加入热固性聚酰亚胺、 固体润滑剂， 有摩擦调节剂的加摩擦 调节剂配置成涂料混合物充分搅拌 2 ~ 4h, 以无明显气泡为度；
2、 喷涂： ①喷涂室环境温湿度， 温度 20 °C ~ 25 °C , 湿度 50%以下； ②涂 15 层表面均匀无漏喷区域及气泡；
3、 自润滑耐磨涂层烧结： 烘箱炉初设温度 5 (TC左右， 斜盘单面干燥加温 以 50 °C、 10h线性升温至 300 °C后停止加热， 自然冷却后出炉后进行第二面喷 涂。 对斜盘进行第二面干燥加温 50 °C、 10h线性升温至 300°C后， 保温 lh后， 再 300°C、 lh线性升温到 380 °C后保温 lh, 停止加热自然冷却出炉；
4、 对耐磨涂层精加工： 车、 磨加工耐磨涂层， 加工后的自润滑耐磨涂层 的单面厚度控制在 20 μηι ~ 30 μηι, 两侧环形平面的平行度 8 μηι。
本发明的滑动接触层的基体是热固性聚酰亚胺， 它是一种热固性树脂， 热 固性树脂与热塑性树脂的区别在于： 热固性树脂在受热后会固化， 而不能再熔 融和不能再成型加工， 结构稳定。 而热塑性树脂在受热后会熔融、 变形， 冷却 时才会固化； 从化学上讲热固性树脂在成型加工时发生交联反应， 生成固定的 分子网络结构。 热塑性树脂在高温下加工时不发生任何化学反应， 聚合物分子 仍保持线型长链。 热固性聚酰亚胺具有出色的力学性能， 优良的耐燃性、 耐磨 性、 耐溶剂性、 耐高温， 更突出是高性能复合的重要树脂基体。 与玻璃纤维、 碳纤维、 硼纤维（及其织物）增强的层压结构的复合材料， 用于制造宇航器、 飞机等部件。
本发明以热固性聚酰亚胺树脂为基体， 添加石墨、 二硫化钼、 聚四氟乙烯 的固体润滑剂填充物， 制成自润滑耐磨剂涂在斜盘金属基体两侧环形平面上， 经高温加热后固化，能使固体润滑剂牢固地保留在热固性聚酰亚胺的树脂涂层 中， 该树脂涂层在高温下有好的抗咬合性和最初适应性， 以及足够的耐久性和 耐热性。 更适合制成自润滑斜盘， 它与用热塑性聚酰亚胺作涂层材料比较具有 更明显的耐高温和耐磨损性能， 具有很好的耐磨损性和附着性， 在技术性能和 使用寿命上均有显著改善或提高。
本发明的优点是：
1、 采用热固性聚酰亚胺为基体材料， 再加入固体润滑剂和摩擦调节剂制 成的树脂涂层斜盘， 其性能超越以热固性聚酰胺亚胺、 热塑性聚酰胺亚胺、 热 塑性聚酰亚胺为基体材料制成的斜盘。
2、 树脂涂层不含铅。
3、 制作工艺筒单、 成本低。 附图说明
图 1是热固性聚酰亚胺耐磨自润滑斜盘的剖面示意图； 图 2是摩擦磨损试验示意图；
图 3是实施例 1的热固性聚酰亚胺耐磨自润滑斜盘测试后的状态图； 图 4是比较例 1热固性聚酰胺亚胺自润滑斜盘测试后的状态图； 图 5是比较例 2热塑性聚酰胺亚胺自润滑斜盘测试后的状态图； 5 图 6是比较例 3热塑性聚酰亚胺自润滑斜盘测试后的状态图。
图中： 1、 斜盘； 2、 金属基体； 3、 自润滑磨涂层； 4、 专用的摩擦、 磨损 试验设备； 5、 半钢球。 具体实施方式
L0 下面结合附图和实施例、 比较例， 对本发明作进一步说明。
本发明的热固性聚酰亚胺耐磨自润滑斜盘 1是由金属基体 2和自润滑耐磨 涂层 3组成， 所述金属基体 2为铁基、 铁铜烧结基、 铜基、 铝基、 辞基中的一 种， 所述金属基体 2是通过机械加工方式制成的； 为增加金属基体 2和自润滑 耐磨涂层 3的结合强度，金属基体 2需通过磷化处理或喷砂和磷化表面处理工
L5 艺。 在金属基体 2两侧环形平面上涂覆有自润滑耐磨涂层 3 , 该自润滑耐磨涂 层 3构成所述斜盘 1环形平面工作层；所述的自润滑耐磨涂层 3的耐磨涂料组 成成份按重量百分含量包括：热固性聚酰亚胺 40 ~ 65%和固体润滑剂 35 ~ 60%。 其中固体润滑剂选用二石克化钼 （MoS2 )、 聚四氟乙烯（PTFE )、 石墨材料中的至 少一种或两种或三种混合。固体润滑剂的平均粒径不大于 15 μ ηι,特别是 0. 2 ~
>0 10 μ m。 在自润滑耐磨涂层 3的组成成份中按重量百分含量还有 0. 1 ~ 1%的摩 擦调节剂。 所述的摩擦调节剂是指 Cr02、 S i02、 AI203、 Zn0、 S iC、 S i 中的一 种或是它们中的任何几种混合物。
热固性聚酰亚胺耐磨自润滑斜盘 1 的生产工艺， 其中自润滑耐磨涂层 3 的涂覆方法依次是：
15 ( 1 )、 自润滑耐磨涂料的配制： ①按以上自润滑耐磨涂料配比； ②配制室 环境温湿度： 温度 20 °C ~ 25 °C , 湿度 50%以下； ③混合搅拌： 用溶剂 N-曱基 吡咯烷酮作为溶剂， 加入热固性聚酰亚胺、 固体润滑剂， 有摩擦调节剂的加摩 擦调节剂配置成涂料混合物充分搅拌 2 ~ 4h, 以无明显气泡为度； (2)、 喷涂： ①喷涂室环境温湿度， 温度 20°C ~25°C, 湿度 50%以下； ② 用涂装机对斜盘喷涂表面喷涂， 涂层表面均勾无漏喷区域及气泡；
( 3)、 自润滑耐磨涂层烧结： 烘箱炉初设温度 5 (TC左右， 斜盘单面干燥 加温以 50°C、 10h线性升温至 300°C后停止加热， 自然冷却后出炉后进行第二 面喷涂； 对斜盘进行第二面干燥加温 50°C、 10h线性升温至 300°C后， 保温 lh 后， 再 300°C、 lh线性升温到 380°C后保温 lh, 停止加热自然冷却出炉。
还可将金属基体 2表面在喷涂工序前通过磷化处理或喷砂和磷化处理。在 金属基体 2两侧环形平面上的自润滑耐磨涂层 3烧结后最终进行精密加工，加 工后的自润滑耐磨涂层 3的单面厚度控制在 20μηι~ 3()μηι, 两侧环形平面的 平行度 8 μ m。
下面结合具体实施例， 进一步阐述本发明。 应这样理解下面的实施例， 这 的具体条件的试验方法， 通常按照常规条件。 除非另有说明， 所有的份数为重 量份， 所有的百分比为重量百分比。
Figure imgf000007_0001
以上各实施例自润滑耐磨涂层 3的涂覆方法均依次是: ( 1 ) 自润滑耐磨涂料的配制： ①按以上对应的自润滑耐磨涂料配比； ② 配制室环境温湿度： 温度 20°C ~ 25°C, 湿度 50%以下； ③混合搅拌： 用溶剂 N-曱基吡咯烷酮作为溶剂， 加入对应的热固性聚酰亚胺、 固体润滑剂， 有摩擦 调节剂的加摩擦调节剂配置成涂料混合物充分搅拌 2 ~ 4h, 以无明显气泡为
5 度；
( 2 )喷涂： ①喷涂室环境温湿度， 温度 20°C ~ 25°C, 湿度 50%以下； ② 用涂装机对斜盘喷涂表面喷涂， 涂层表面均勾无漏喷区域及气泡；
( 3 )耐磨涂层烧结： 烘箱炉初设温度 5 (TC左右， 斜盘单面干燥加温以 50 °C、 10h线性升温至 300°C后停止加热， 自然冷却后出炉后进行第二面喷涂；
10 对斜盘进行第二面干燥加温 50°C、 10h线性升温至 300°C后， 保温 lh后， 再 300°C、 lh线性升温到 380°C后保温 lh, 停止加热自然冷却出炉；
( 4 )对耐磨涂层精加工： 车、 磨加工耐磨涂层， 加工后的自润滑耐磨涂 层 3的单面厚度控制在 20 μηι~ 30 μηι, 两侧环形平面的平行度 8 μ m。
为与其它材料有一个对比， 以说明本发明的性能，特选现有技术的热固性 L5 聚酰胺酰亚胺、 热塑性聚酰胺酰亚胺以及热塑性聚酰亚胺来分别替代实施例 1 中的热固性聚酰亚胺， 其它配方材料及含量相同， 做成试样件作对比试验， 所 采用的金属基体均为 45号钢。 具体比较实施如下：
比较例 1:
耐磨自润滑斜盘涂层按日本道康宁亚洲株式会社 （中国专利公开号 >0 CN1583918A)公开的技术方案， 由 55%热固性聚酰胺酰亚胺、 15%聚四氟乙烯、 10%二硫化钼、 19.5%石墨、 0.5%碳化硅组成。 用溶剂 N-曱基吡咯烷酮作为溶 剂配置成涂料喷涂在斜盘金属基体 2两侧， 在烘箱炉中烘干烧结， 再经车、 磨 加工成 0.020 ~ 0.035mm厚的耐磨涂层 3。
比较例 2:
15 耐磨自润滑斜盘层按日本道康宁亚洲株式会社 （中国专利公开号
CN1583918A)公开的技术方案， 由 55%热塑性聚酰胺酰亚胺、 15%聚四氟乙烯、 10%二硫化钼、 19.5%石墨、 0.5%碳化硅组成。 用溶剂 N-曱基吡咯烷酮作为溶 剂配置成涂料喷涂在斜盘金属基体 2两侧， 在烘箱炉中烘干烧结， 再经车、 磨 加工成 0. 020 ~ 0. 035mm厚的耐磨涂层 3。
比较例 3 :
耐磨自润滑斜盘涂层按日本株式会社丰田自动织机 （中国专利公开号 CN1401898A )公开的技术方案， 由 55%热塑性聚酰亚胺、 15%聚四氟乙烯、 1 0% 二硫化钼、 19. 5%石墨、 0. 5%碳化硅组成。 用溶剂 N-曱基吡咯烷酮作为溶剂配 置成涂料喷涂在斜盘金属基体 2两侧， 在烘箱炉中烘干烧结， 再经车、 磨加工 成 0. 020 ~ 0. 030mm厚的耐磨涂层 3。
按实施例 1与比较例 1、例 2、例 3制作的试件通过端面干摩擦磨损测试， 试验在专用的摩擦、 磨损试验设备 4上进行。 固定斜盘 1后， 用三个直径为 12mm的半钢球 5 , 硬度为 HV880 , 作为对磨件， 在斜盘 1的环形平面上均匀分 布三个半钢球 5滑动， 对磨件和斜盘 1 间的载荷 P是 5MPa , 对磨件与斜盘 1 的相对旋转速度 V是 3. 35m/ s , 时间设定 40min , 如图 2所示。 测试结果如下 表所示：
Figure imgf000009_0001
通过以上试验数据可以看出，磨损量实施例 1明显小于所有比较例； 从图
3、 4、 5、 6 也可以看出测试后的比较例出现明显的磨损划痕和局部的剥落现 象， 而相对本发明的产品则在干摩擦的状态下有显著的耐磨性和抗咬合性能。
以上所述仅是本发明的优选实施方式，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的前提下， 还可以做出若干改进和润饰， 这些改进和润饰也应视为本发明的保护范围。

Claims

权 利 要 求
1、 一种热固性聚酰亚胺耐磨自润滑斜盘， 是由金属基体和自润滑耐磨涂 层组成， 所述金属基体为铁基、 铁铜烧结基、 铜基、 铝基、 辞基中的一种， 所
5 述金属基体是通过机械加工方式制成的；在金属基体两侧环形平面上涂覆有自 润滑耐磨涂层，该自润滑耐磨涂层构成所述斜盘环形平面工作层；其特征在于： 所述的自润滑耐磨涂层的耐磨涂料组成成份按重量百分含量包括：热固性聚酰 亚胺 40 ~ 65%和固体润滑剂 35 ~ 60%。
2、根据权利要求 1所述的热固性聚酰亚胺耐磨自润滑斜盘， 其特征在于： L0 固体润滑剂选用二硫化钼、聚四氟乙烯、石墨材料中的至少一种或两种或三种 混合使用。
3、根据权利要求 1所述的热固性聚酰亚胺耐磨自润滑斜盘， 其特征在于： 固体润滑剂的平均粒径优选不大于 15 μηι。
4、 根据权利要求 1所述的热固性聚酰亚胺耐磨自润滑斜盘， 其特征是在 L5 自润滑耐磨涂层的组成成份中按重量百分含量还有 0.1 ~ 1%的摩擦调节剂。
5、 根据权利要求 4所述的热固性聚酰亚胺耐磨自润滑斜盘， 其特征是所 述的摩擦调节剂是指 Cr02、 Si02、 AI203、 Zn0、 SiC、 Si3N4中的一种或是它们中 的任何几种混合物。
6、 根据权利要求 1至 5任何一项所述的热固性聚酰亚胺耐磨自润滑斜盘 >0 的生产工艺， 其特征是自润滑耐磨涂层的涂覆方法依次是：
( 1 ) 自润滑耐磨涂料的配制： 按以上对应的自润滑耐磨涂料配比； 配制 室环境温湿度： 温度 20°C ~ 25°C, 湿度 50%以下； 混合搅拌： 用溶剂 N-曱基 吡咯烷酮作为溶剂， 加入对应的热固性聚酰亚胺、 固体润滑剂， 有摩擦调节剂 的加摩擦调节剂配置成涂料混合物充分搅拌 2 ~ 4h, 以无明显气泡为度；
15 ( 2 )喷涂： 喷涂室环境温湿度， 温度 20°C ~ 25°C, 湿度 50%以下； 涂层 表面均匀无漏喷区域及气泡；
( 3 )耐磨涂层烧结： 烘箱炉初设温度 5 (TC左右， 斜盘单面干燥加温以 50 °C、 10h线性升温至 300°C后停止加热， 自然冷却后出炉后进行第二面喷涂； 对斜盘进行第二面干燥加温 50°C、 10h线性升温至 300°C后， 保温 lh后， 再 300°C、 lh线性升温到 380°C后保温 lh, 停止加热自然冷却出炉。
7、 根据权利要求 6所述的热固性聚酰亚胺耐磨自润滑斜盘的生产工艺， 其特征在于所述金属基体表面在喷涂工序前通过磷化处理或喷砂和磷化处理。
8、 根据权利要求 6所述的热固性聚酰亚胺耐磨自润滑斜盘的生产工艺， 其特征在于所述金属基体两侧环形平面上的自润滑耐磨涂层烧结后最终进行 精密加工， 加工后的自润滑耐磨涂层的单面厚度控制在 20μηι~3()μηι, 两侧 环形平面的平行度 8 μ m。
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CN103758746B (zh) * 2014-01-17 2015-10-28 钢铁研究总院 一种钢-钢双金属转子及其制造方法
US11299654B2 (en) 2019-08-20 2022-04-12 Roller Bearing Company Of America, Inc. Permanent, self-adhering, self-lubricating, anti-wear composite system

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