查询词典 metallurgy

The colour, collapse phenomenon and chemical component of the friction surface of powder metallurgy airplane brake materials with different base are studied in this paper.

结果表明刹车材料的抗压强度随基体而变化，刹车材料摩擦面的表观颜色与基体密切相关；基体对刹车材料摩擦面的粘附转移产生重大影响，从而使刹车材料摩擦面的化学成分发生变

Substituting for powder metallurgy friction materials,paper-base friction materials are used in transmissions and brakes to improve their gear shifting and braking smoothness,reduce noise and increase products service life.

采用纸基摩擦材料替代粉末冶金摩擦材料，应用于变速器以及制动器中，改善变速器与制动器的换挡及制动平稳性、降低噪声，提高产品寿命。

Cu Fe composite,powder metallurgy,friction and wear

中文关键词： Cu-Fe复合材料，粉末冶金，摩擦磨损

Keywords friction and wear;Cu-MoS2 powder metallurgy material;electrical current

摩擦磨损；铜-二硫化钼粉末冶金；载流

A comparison test is conducted on SAE No.2 standard test machine to study friction performance,durability,power increment as well as continuous slippage between paper-base friction materials and powder metallurgy friction materials.

利用SAENo2标准试验机对纸基摩擦材料与粉末冶金摩擦材料进行了摩擦性能、耐久性、能量递增以及连续滑动的对比试验。

A kind of wet copper-based friction material was made through powder metallurgy process. The surface microstructure was analyzed through metallographic analysis. The effects of brake conditions on friction coefficients of the material were investigated with MM1000 friction tester.

摘 要：采用粉末冶金方法制备铜基湿式摩擦材料，利用金相技术分析材料表面的微观结构，并用MM1000摩擦试验机研究制动条件对动摩擦因数影响的变化规律。

Powder metallurgy is a leading metal forming technology. It is a high new technology to make metal and other powder into mechanical components and products by pressing, fritting and other follow-up processes.

粉末冶金是一种先进的金属成型技术，是金属及其它粉末通过加工压制成型、烧结和必要的后续处理制成机械零部件和金属制品的高新技术。

Powder metallurgy technology and equipment: Injection forming, pressing, fritting, breaking, polishing, sizing, drying, quenching, reducing, charring, mould and shooting etc

粉末冶金及硬质合金技术、设备类：注射成形、压制、烧结、破碎、研磨、筛分、干燥、淬火、还原、碳化、模具、机床及制粒等粉末冶金应用技术和设备

Powder metallurgy and magnetic material technology and equipment:Injection forming, pressing, fritting, breaking, polishing, sizing, drying, quenching, reducing, charring, mould and shotting etc

粉末冶金及磁性材料技术、设备类：注射成形、压制、烧结、破碎、研磨、筛分、干燥、淬火、还原、碳化、模具、机床及制粒等粉末冶金应用技术和设备

Powder metallurgy technology and equipment: Injection forming, pressing, fritting, breaking, polishing, sizing, drying, quenching, reducing, charring, mould and shooting etc

粉末冶金仪器、仪表和控制、检测技术与设备等及气体类：粒度测试仪及其他检测仪碳硫分析仪、氧分析仪、洛瓦硬度仪、表面粗糙真空油浸机、中空膜制氮装置、氮气纯化装置、保护气体等检测仪器及专用气体。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐