硬质合金在家用电器中的应用现状2

Household appliances are closely related to people’s daily life, such as household air conditioners, household air conditioners, refrigerators, washing machines, household kitchen appliances, household beauty care appliances, household sanitary appliances, etc. In 2019, the accumulated main business income of 1-8 home appliance industry reached 1.05 trillion yuan, an increase of 4.7% year-on-year, and the total accumulated profit reached 79.897 billion yuan, an increase of 14.9% year-on-year. All kinds of products maintained the growth trend. There is an indispensable part in household appliances, which is, powder metallurgy parts: sintered metal oil bearing and sintered metal mechanical structure parts.

硬质合金在家用电器中的应用现状3

根据中国机械学会粉末冶金协会的统计,2018年粉末冶金零件累计主营业务收入7.03亿元,累计利润总额82966万元,累计销量19万吨,其中1176.86亿元,家电行业累计销售量40998吨。图1显示了2019年1月至2019年9月P / M零件的累计主营业务收入和销售量。以上数据表明,在当前经济形势下,P / M行业仍在逆势而上,并找到了活力。在困难中,家用电器行业的P / M部分占总量的16.7%,销量占20.6%,而家用电器行业的P / M部分也是重要的部分P / M行业。

硬质合金在家用电器中的应用现状4

粉末冶金是一种节约材料和节能的技术。可用于制造具有特殊性能的家用电器。作为家用电器生产和消费的大国,中国和世界范围内用于家用电器的PM产品的数量和质量存在很大差距。为了增加粉末冶金材料在家用电器中的应用和发展,摆在我们面前的任务艰巨。在空调压缩机中,粉末冶金家用电器的零件主要包括:缸体,下缸盖,上缸盖等;在洗衣机中,它们主要包括:各种轴承,变速齿轮,中心齿轮,行星齿轮减速器等;在冰箱压缩机中,主要包括:连杆,活塞,阀板,底阀座等。在空调中,它们主要包括:传动齿轮,各种轴承等。

粉末冶金在家用电器领域的发展

在家用电器的发展中,粉末冶金的初期主要是制造含铜的含油油。压缩机缸盖,高精度,复杂形状的缸套等难加工零件,以及一些具有特殊性能要求的产品也已成功开发。在中国,各种压缩机对PM结构件的需求非常大。例如,用于空调和冰箱的旋转压缩机的年产量约为355万,每台压缩机需要80-350g的PM结构件。冰箱用连杆压缩机的年产量约为827万,每台需要100g P / M结构件;用于空调和冰箱的滑杆压缩机的年产量约为310万,每台需要30-200g的P / M结构部件。家用电气产品是P / M结构零件的大市场,但是这些零件不仅形状复杂,而且还要求耐高温高压,防锈,气密性和良好的机械加工性。对于P / M制造商来说,进一步提高技术设备和设计水平也非常有益。

硬质合金在家用电器中的应用现状5

粉末冶金在家用电器中的应用

为了降低噪音,在洗衣机和电风扇电动机中已经使用了PM轴承,特别是低噪音的铁基轴承,可以代替铜。整个机器的噪音为〜40dB PM轴承。由于其自润滑,低噪音,低价格,适合批量生产,因此PM精密含油轴承也广泛用于相机,录音机和其他微型电器。

P / M不锈钢结构零件,例如304L P / M材料制成的自动洗碗机和洗衣机的零件,316L P / M材料制成的冰箱制冰机的推出板,限位开关和410L P / M制造的离合器材料等粉末冶金铜基合金广泛用于洗碗机,干衣机,洗衣机,缝纫机,吸尘器,冰箱,食品搅拌机风扇等。

硬质合金在家用电器中的应用现状6

Washing machine industry is mainly automatic washing machine at present. The full-automatic washing machines sold on the market are generally divided into three categories: the front-end side opening roller washing machine invented in Europe, the wave wheel top opening washing machine invented by Asians, and the “agitated” washing machine invented in North America. Many powder metallurgy parts are used in the middle, and some steel parts are changed into powder metallurgy parts For example, General Electric Company of the United States has redesigned two steel parts in the gearbox of the “agitated” automatic washing machine: lock tube and spin tube into powder metallurgy parts, which has improved the production cost and product quality, reduced the production cost of materials, labor, management cost and waste loss, and saved more than 250000 US dollars annually Yuan.

硬质合金在家用电器中的应用现状7

At present, China’s household appliances have entered a stage of steady development. The quality of household appliances and their materials is becoming increasingly important, especially the powder metallurgy materials widely used in household appliances. Because, some home appliance materials and parts can only be made by powder metallurgy, such as porous self-lubricating bearings of refrigerator compressors, washing machines, electric fans, etc.; some home appliance materials and parts are made by powder metallurgy with better quality and lower price, such as complex shape gears and magnets in the exhaust fans of home air conditioners and vacuum cleaners, etc. In addition, powder metallurgy plays an important role in maintaining ecology, protecting environment and saving materials and energy.