Chisarudzo chekurapa kwepamusoro idambudziko rinotarisana nemugadziri wese. Kune marudzi akawanda emhando dzepamusoro-soro sarudzo dziripo, uye mugadziri wepamusoro-soro haafaniri kungofunga nezvehupfumi uye kushanda kwekugadzira, asiwo teerera kumusangano wegungano uye kunyange zvinodiwa zvakatipoteredza. Pazasi pane sumo pfupi yemamwe mabhanhire anowanzo shandiswa ezvimisikidzo zvinoenderana nemisimboti iri pamusoro, yekunongedza nevarapi vefastener.
1. Electrogalvanizing
Zinc ndiyo inonyanya kushandiswa coating for commercial fasteners. Mutengo wacho wakachipa, uye chitarisiko chakanaka. Mavara akajairika anosanganisira dema uye girini yemauto. Nekudaro, kuita kwayo kwe-anti-corrosion ndeyeavhareji, uye kuita kwayo kwe-anti-corrosion ndiyo yakaderera pakati pezinc plating (coating) layer. Kazhinji, iyo yekusarerekera munyu yekupfapfaidza bvunzo yesimbi yakabatiswa inoitwa mukati memaawa makumi manomwe nemaviri, uye yakakosha yekuisa chisimbiso maajenti anoshandiswawo kuve nechokwadi chekuti yekusarerekera munyu yekupfapfaidza bvunzo inogara kweanopfuura maawa mazana maviri. Zvisinei, mutengo wacho unodhura, unova 5-8 nguva yesimbi yakajairika.
Maitiro e electrogalvanizing anowanzoita hydrogen embrittlement, saka mabhaudhi ari pamusoro pegiredhi 10.9 haawanzo kubatwa ne galvanizing. Kunyange zvazvo hydrogen inogona kubviswa uchishandisa ovheni mushure mekuputira, iyo passivation firimu ichakuvadzwa pane tembiricha iri pamusoro pe60 ℃, saka kubviswa kwehydrogen kunofanirwa kuitwa mushure me electroplating uye isati yapfuura. Izvi zvine kusashanda zvakanaka uye mitengo yakakwira yekugadzirisa. Muchokwadi, zvidyarwa zvekugadzira zvakajairika hazvibvise hydrogen kunze kwekunge zvarairwa nevatengi chaivo.
Kuenderana pakati pe torque uye pre tightening simba rezvitsigiro zvemagetsi hazvina kunaka uye hazvina kugadzikana, uye kazhinji hazvishandiswe kubatanidza zvikamu zvakakosha. Kuti uvandudze kuwirirana kwe torque preload, iyo nzira yekupfekedza mafuta ekuzora mushure mekuputira inogona kushandiswawo kugadzirisa uye kuwedzera kuenderana kwe torque preload.
2. Phosphating
Nheyo yakakosha ndeyekuti phosphating yakachipa pane galvanizing, asi kushora kwayo kwakaipa kupfuura kurovera. Mushure me phosphating, mafuta anofanirwa kuiswa, uye kushorwa kwayo kunoenderana zvakanyanya nekuita kwemafuta akaiswa. Semuenzaniso, mushure mekuita phosphating, kushandisa general anti rust mafuta uye kuita yekusarerekera munyu yekupfapfaidza bvunzo kwemaawa gumi-20 chete. Kuisa mafuta epamusoro-giredhi anti rust kunogona kutora kusvika maawa 72-96. Asi mutengo wayo 2-3 nguva iyo ye general phosphating mafuta.
Kune maviri anowanzo shandiswa marudzi e phosphating yekumisikidza, zinc yakavakirwa phosphating uye manganese yakavakirwa phosphating. Zinc yakavakirwa phosphating ine kuita kurinani kwekuzora pane manganese yakavakirwa phosphating, uye manganese yakavakirwa phosphating ine zvirinani corrosion kuramba uye kupfeka kuramba pane zinc plating. Inogona kushandiswa pane tembiricha kubva 225 kusvika 400 madhigirii Fahrenheit (107-204 ℃). Kunyanya kubatanidzwa kwezvimwe zvikamu zvakakosha. Zvakadai sekubatanidza mabhaudhi einjini uye nzungu dzeinjini, silinda musoro, main bearing, flywheel bolts, mabhaudhi emavhiri uye nzungu, nezvimwe.
High simba mabhaudhi anoshandisa phosphating, iyo inogona zvakare kudzivirira hydrogen embrittlement nyaya. Naizvozvo, mabhaudhi ari pamusoro pegiredhi 10.9 mumunda weindasitiri anowanzo shandisa phosphating pamusoro pekurapa.
3. Oxidation (kusviba)
Blackening + oiling ijairo rine mukurumbira rezvitsigiro zvemaindasitiri nekuti ndiyo yakachipa uye inotaridzika zvakanaka isati yashandiswa mafuta. Nekuda kwekusviba kwayo, inenge isina simba rekudzivirira ngura, saka ichaita ngura nekukurumidza pasina mafuta. Kunyangwe pamberi pemafuta, munyu wekupfapfaidza bvunzo unogona kungogara kwemaawa 3-5.
4. Electroplating partition
Cadmium plating ine yakanakisa corrosion kuramba, kunyanya munzvimbo dzemugungwa dzemuchadenga, zvichienzaniswa nekumwe kurapwa kwepamusoro. Mutengo wekurasa mvura yemarara mukuita kwe electroplating cadmium wakakwira, uye mutengo wayo ungangoita 15-20 nguva ye electroplating zinc. Saka haishandiswe mumaindasitiri akajairwa, chete kune chaiwo nharaunda. Mafasteners anoshandiswa kuchera oiri mapuratifomu uye HNA ndege.
5. Chromium plating
Iyo chromium coating yakanyatsogadzikana mumhepo, haisi nyore kuchinja ruvara uye kurasikirwa nekupenya, uye ine kuoma kwakanyanya uye kwakanaka kupfeka kuramba. Iko kushandiswa kwechromium plating pazvisungo kunowanzo shandiswa pakushongedza. Iyo haiwanzo kushandiswa muminda yeindasitiri ine yakakwira corrosion kuramba zvinodiwa, seyakanaka chrome yakapfava zvisungo zvinodhura zvakaenzana sesimbi isina tsvina. Chete kana simba resimbi risina kukwana, chrome plated fasteners inoshandiswa panzvimbo.
Kuti udzivise kuora, mhangura uye nickel zvinofanirwa kuiswa pekutanga pamberi pe chrome plating. Iyo chromium coating inogona kumira tembiricha yakakwira ye1200 degrees Fahrenheit (650 ℃). Asi panewo dambudziko rehydrogen embrittlement, yakafanana ne electrogalvanizing.
6. Nickel plating
Inonyanya kushandiswa munzvimbo dzinoda zvese anti-corrosion uye yakanaka conductivity. Semuenzaniso, materminal anobuda emabhatiri emotokari.
7. Kupisa-dip galvanizing
Kupisa dip galvanizing ndiko kupisa kwekuputira kwe zinki kunopisa kumvura. Ukobvu hwekuputira huri pakati pe15 ne100 μ m. Uye haisi nyore kudzora, asi ine yakanaka corrosion resistance uye inowanzoshandiswa muinjiniya. Munguva yekupisa kwe dip galvanizing process, pane kusvibiswa kwakanyanya, kusanganisira tsvina ye zinc uye zinc vapor.
Nekuda kwekukoira kwacho, zvakonzera kuomerwa mukupusha mukati nekunze shinda mumafasteners. Nekuda kwekushisa kwekupisa-dip galvanizing processing, haigone kushandiswa kune zvisungo pamusoro pegiredhi 10.9 (340 ~ 500 ℃).
8. Zinc kupinda
Zinc infiltration ndeye yakasimba metallurgical thermal diffusion coating ye zinc powder. Kufanana kwayo kwakanaka, uye jira rakafanana rinogona kuwanikwa mune zvose tambo uye mapofu maburi. Plating ukobvu ndeye 10-110 μ m. Uye kukanganisa kunogona kudzorwa pa10%. Simba rayo rekubatanidza uye anti-corrosion performance ne substrate ndiyo yakanakisa mu zinc coatings (senge electrogalvanizing, hot-dip galvanizing, uye Dacromet). Maitiro ayo ekugadzirisa haana kusvibiswa-isina uye anonyanya kukoshesa zvakatipoteredza.
9. Dacromet
Iko hakuna hydrogen embrittlement nyaya, uye torque preload kuenderana kuita kwakanaka kwazvo. Pasina kufunga nezve chromium uye nyaya dzezvakatipoteredza, Dacromet ndiyo inonyanya kukodzera kune yakakwirira-simba fasteners ine yakakwira anti-corrosion zvinodiwa.
Nguva yekutumira: May-19-2023
