Nzira yekusarudza nzira yekurapa kwepamusoro ye fasteners?

Anenge ese mafasteners akagadzirwa nekabhoni simbi uye alloy simbi, uye general fasteners anotarisirwa kudzivirira ngura.Mukuwedzera, kuvhara kwepamusoro pekurapa kunofanira kunamatira zvakasimba.

Kana zviri zvekurapwa kwepamusoro, vanhu vanowanzo tarisa runako uye kudzivirira ngura, asi basa guru remafasteners kubatanidza kubatanidza, uye kurapwa kwepamusoro zvakare kune pesvedzero huru pakusimbisa kuita kwemafasteners.Naizvozvo, pakusarudza kurapwa kwepamusoro, isu tinofanirawo kufunga nezvechinhu chekusimbisa kuita, ndiko kuti, kuwirirana kwekuisa torque uye preload.

1. Electroplating

Electroplating of fasteners zvinoreva kuti chikamu chezvisungo zvinoiswa electroplated chinonyudzwa mune chaiyo aqueous solution, iyo inenge iine mamwe macompounds esimbi akaiswa, kuitira kuti mushure mekupfuura nemumvura ine mvura ine ikozvino, zvinhu zvesimbi zviri mumushonga zvinonaya uye zvinonamatira. chikamu chakanyudzwa chemafasteners.Electroplating of fasteners kazhinji inosanganisira galvanizing, mhangura, nickel, chromium, copper-nickel alloy, nezvimwe.

2. Phosphating

Phosphating yakachipa pane galvanizing, uye kusaita kwayo ngura kwakaipisisa kupfuura kuita galvanizing.Kune nzira mbiri dzinowanzo shandiswa phosphating yekusimbisa, zinc phosphating uye manganese phosphating.Zinc phosphating ine zvirinani zvekuzora midziyo pane manganese phosphating, uye manganese phosphating ine zvirinani kusagadzika kwecorrosion uye kupfeka kuramba pane zinc plating.Zvigadzirwa zvePhosphating zvakadai sekubatanidza mabhaudhi etsvimbo uye nzungu dzeinjini, misoro silinda, mainbearings, mabhaudhi anobhururuka, mabhaudhi emavhiri uye nzungu, nezvimwe.

3. Oxidation (kusviba)

Blackening + oiling ijairo rine mukurumbira rezvitsigiro zvemaindasitiri, nekuti ndiyo yakachipa uye inotaridzika zvakanaka kudyiwa kwemafuta kusati kwapera.Nekuda kwekuti kusviba kunenge kusisina ngura yekudzivirira ngura, inozoita ngura munguva pfupi inenge isina mafuta.Kunyangwe pamberi pemafuta, iyo yekusarerekera munyu yekupfapfaidza bvunzo inogona kungosvika maawa matatu ~ 5.

4. Kupisa kunyura zingi

Kupisa galvanizing ndiko kupisa kwekupisa kwekuputira umo zinc inodziiswa kuita mvura.Ukobvu hwayo hwekuputira i15 ~ 100μm, uye haisi nyore kudzora, asi ine yakanaka yekudzivirira ngura, saka inowanzoshandiswa muinjiniya.Nekuda kwekupisa kwekushisa-dip zinc processing, (340-500C) haigone kushandiswa kune zvinosungirirwa pamusoro pegiredhi 10.9.Mutengo wekupisa-dip galvanizing of fasteners wakakwira kupfuura iwo we electroplating.

5. Zinc impregnation

Zinc impregnation yakasimba metallurgical thermal diffusion coating ye zinc powder.Kufanana kwayo kwakanaka, uye kunyange mitsara inogona kuwanikwa mushinda nemakomba mapofu.Ukobvu hwejasi ndeye 10 ~ 110μm, uye kukanganisa kunogona kudzorwa mukati me10%.Simba rayo rekubatanidza uye anti-corrosion performance ne substrate ndiyo yakanakisisa pakati pezinc coatings (electro-galvanizing, hot-dip galvanizing uye dacromet).Maitiro ayo ekugadzirisa haana kusvibiswa-isina uye anonyanya kukoshesa zvakatipoteredza.Kana isu tisingatarise chromium nekuchengetedzwa kwezvakatipoteredza, ndiyo inonyanya kukodzera kune yakakwirira-simba fasteners ine yakakwirira anti-corrosion zvinodiwa.

Chinangwa chikuru chekurapa kwepamusoro kwezvigadziro ndechekuita kuti zvigadziro zviwane anti-corrosion kugona, kuitira kuti iwedzere kuvimbika uye kuchinjika kwezvitsigiro.


Nguva yekutumira: Zvita-08-2022