Kusarudzwa kwekugadzirisa pamusoro idambudziko rinosangana nemugadziri wese. Kune mhando dzakawanda dzekugadzirisa pamusoro dziripo, uye mugadziri wepamusoro haafanire kungofunga nezvehupfumi uye kushanda kwedhizaini chete, asiwo kutarisisa maitiro ekugadzira uye kunyange zvinodiwa nenharaunda. Pasi apa pane sumo pfupi yemamwe machira anowanzo shandiswa ezvisungo zvezvisungo zvichibva pamisimboti iri pamusoro, kuti zvishandiswe nevanoisa zvisungo.
1. Kugadzira magasi emagetsi
Zinc ndiyo coating inonyanya kushandiswa pazvisungo zvemabhizinesi. Mutengo wayo wakachipa, uye chitarisiko chakanaka. Mavara akajairika anosanganisira dema negirini remauto. Zvisinei, kushanda kwayo mukudzivirira ngura kwakajairika, uye kushanda kwayo mukudzivirira ngura kwakaderera pakati pemachira e zinc plating (coating). Kazhinji, bvunzo ye galvanized salt spray yesimbi isina munyu inoitwa mukati memaawa makumi manomwe nemaviri, uye ma sealing agents anoshandiswawo kuona kuti bvunzo ye neutral salt spray inogara kwemaawa anopfuura mazana maviri. Zvisinei, mutengo wacho unodhura, unova wakapetwa ka5-8 kupfuura simbi yakajairika ye galvanized.
Maitiro ekugadzira electrogalvanizing anowanzoita kuti hydrogen itsvedzerere, saka mabhoti ari pamusoro pegiredhi 10.9 haawanzo gadziriswa ne galvanizing. Kunyangwe hydrogen ichigona kubviswa uchishandisa ovheni mushure mekuputira, firimu repassivation rinokuvadzwa patembiricha iri pamusoro pe60 ℃, saka kubvisa hydrogen kunofanirwa kuitwa mushure mekuputira electroplating uye usati waputira. Izvi hazvina kunaka kushanda uye zvinodhura zvakanyanya pakugadzirisa. Muchokwadi, mafekitori ekugadzira haabvise hydrogen zvakanyanya kunze kwekunge zvarayirwa nevatengi vakasiyana.
Kuenderana pakati pe torque nesimba re pre-tighten re galvanized fasteners hakuna kugadzikana uye hakushandiswi zvakanaka, uye kazhinji hazvishandiswi kubatanidza zvikamu zvakakosha. Kuti zvivandudze kuenderana kwe torque preload, nzira yekuputira zvinhu zvinozora mushure mekuputira inogona zvakare kushandiswa kuvandudza nekuwedzera kuenderana kwe torque preload.
2. Kugadzira fosfeti
Nheyo huru ndeyekuti phosphating yakachipa pane galvanizing, asi kuramba kwayo ngura kwakaipa pane galvanizing. Mushure me phosphating, oiri inofanira kuiswa, uye kuramba kwayo ngura kwakabatana zvikuru nekushanda kwemafuta akaiswa. Semuenzaniso, mushure me phosphating, kuisa oiri yekudzivirira ngura uye kuita bvunzo yekupisa munyu usina ngura kwemaawa gumi kusvika makumi maviri chete. Kuisa oiri yemhando yepamusoro kunogona kutora kusvika maawa makumi manomwe nemaviri kusvika makumi mapfumbamwe nematanhatu. Asi mutengo wayo wakapetwa kaviri kusvika katatu pane oiri yekudzivirira ngura.
Kune mhando mbiri dzinoshandiswa zvakanyanya dzephosphating pakubatanidza, phosphating ine zinc uye phosphating ine manganese. Phosphating ine zinc ine lubrication iri nani pane phosphating ine manganese, uye phosphating ine manganese ine corrosion resistance uye wear resistance iri nani pane zinc plating. Inogona kushandiswa patembiricha iri pakati pe225 ne400 degrees Fahrenheit (107-204 ℃). Kunyanya pakubatanidza zvimwe zvinhu zvakakosha. Zvakadai sekubatanidza rod bolts nenuts dzeinjini, cylinder head, main bearing, flywheel bolts, wheel bolts nenuts, nezvimwewo.
Mabhaudhi ane simba guru anoshandisa phosphating, izvo zvinogonawo kudzivirira matambudziko ehydrogen embrittlement. Saka, mabhaudhi ari pamusoro pegiredhi 10.9 mumunda wemaindasitiri anowanzo shandisa phosphating surface treatment.
3. Kusviba (kusviba)
Kusviba+oiring ipurasitiki inozivikanwa nevanogadzira zvinhu zvemaindasitiri nekuti ndiyo yakachipa uye inotaridzika zvakanaka isati yashandiswa mafuta. Nekuda kwesviba kwayo, haina simba rekudzivirira ngura, saka inokurumidza ngura isina mafuta. Kunyangwe paine mafuta, bvunzo yesalt spray inogona kungotora maawa matatu kusvika mashanu chete.
4. Kupatsanura nemagetsi
Kuisa cadmium plating kunodzivirira ngura zvakanyanya, kunyanya munzvimbo dzemugungwa, zvichienzaniswa nedzimwe nzira dzekurapa pamusoro. Mari yekurapa marara emvura panguva yekuisa cadmium electroplating yakakwira, uye mutengo wayo unopetwa ka15-20 kupfuura we electroplating zinc. Saka haishandiswi mumaindasitiri akajairika, chete munzvimbo dzakatarwa. Zvisungo zvinoshandiswa pakugadzira mapuratifomu ekuchera mafuta nendege dzeHNA.
5. Kuputira Chromium
Kuputira chromium kwakasimba zvikuru mumhepo, hazvisi nyore kuchinja ruvara uye kurasikirwa nekupenya, uye kune kuomarara kwakanyanya uye kuramba kupfeka zvakanaka. Kushandiswa kwe chromium plating pazvisungo kunowanzo shandiswa pakushongedza. Hazviwanzo shandiswa muminda yemaindasitiri ine zvinodiwa zvakanyanya zvekudzivirira ngura, sezvo zvisungo zvakanaka zve chrome plated zvinodhura zvakaenzana sesimbi isina ngura. Kana simba resimbi isina ngura risinganyanyi kukwana, zvisungo zve chrome plated zvinoshandiswa panzvimbo pezvo.
Kuti ngura isaparare, mhangura nenickel zvinofanira kutanga zvaiswa chrome plating isati yaiswa. Chromium coating inogona kutsungirira tembiricha yepamusoro ye1200 degrees Fahrenheit (650 ℃). Asi kunewo dambudziko rehydrogen embrittlement, rakafanana neelectrogalvanizing.
6. Kuputira nickel
Inonyanya kushandiswa munzvimbo dzinoda kudzivirira ngura uye dzinoda kufambisa zvakanaka mabhatiri emotokari. Semuenzaniso, materminals anobuda emabhatiri emotokari.
7. Kupisa-kunyika galvanizing
Kupisa galvanizing ipurasitiki inopararira nekupisa ye zinc inopisirwa kusvika pamvura. Ukobvu hwepurasitiki iyi huri pakati pe15 ne100 μ m. Uye hazvisi nyore kudzora, asi inodzivirira ngura zvakanaka uye inowanzoshandiswa muinjiniya. Munguva yekupisa galvanizing, pane kusvibiswa kwakanyanya, kusanganisira tsvina ye zinc nemhute ye zinc.
Nekuda kwehukobvu hwayo, yakakonzera matambudziko ekukurunga shinda dzemukati nedzekunze muzvisungo. Nekuda kwekupisa kwekupisa kwekugadzirisa galvanizing, haigone kushandiswa kune zvisungo zviri pamusoro pegiredhi 10.9 (340~500 ℃).
8. Kupinda kwe zinc
Kupinda kwe zinc mupurasitiki ipurasitiki yakasimba inopararira nesimbi ine upfu hwe zinc. Kufanana kwayo kwakanaka, uye jira rakafanana rinogona kuwanikwa mu threads nemaburi asingaonekwe. Ukobvu hweplating hunosvika 10-110 μ m. Uye kukanganisa kunogona kudzorwa pa10%. Simba rayo rekubatanidza uye kushanda kwayo kwekudzivirira ngura ne substrate ndizvo zvakanakisisa mupurasitiki ye zinc (yakadai se electrogalvanizing, hot-dip galvanizing, uye Dacromet). Maitiro ayo ekugadzirisa haana kusvibiswa uye ane hushamwari kune zvakatipoteredza.
9. Dacromet
Hapana dambudziko rehydrogen embrittlement, uye mashandiro e torque preload zvakanaka. Pasina kufunga nezve chromium nematambudziko ezvakatipoteredza, Dacromet ndiyo yakakodzera zvakanyanya kune vanosunga vane simba rakawanda vane zvinodiwa zvakanyanya zvekudzivirira ngura.
Nguva yekutumira: Chivabvu-19-2023
