Ukuveliswa kwe-screw fasteners, unyango lomphezulu yinkqubo engenakuthintelwa, abathengisi abaninzi ekubuzeni malunga ne-screw fasteners, indlela yonyango lomphezulu, umgangatho womnatha ngokolwazi olushwankathelweyo malunga nomphezulu we-screw fasteners iindlela eziqhelekileyo zokuqhuba kukho iindidi ezisibhozo. yeefom, ezinje: ezimnyama (blue), phosphating, idip eshushu zinc, dacromet, galvanized electric, chrome plating, nickel kunye nezinc ukukhulelwa. I-fastener screw yonyango lomphezulu yindlela ethile yokwenza umaleko wokugquma phezu kwendawo yokusebenza, injongo yayo kukwenza umphezulu wemveliso ibe mhle, i-anti-corrosion effect.
Iindlela ezisibhozo zonyango lwezikrufu zezikrufu:
1, Mnyama (bhlowu)
Iziqhoboshi eziza kunyangwa ngomnyama zafakwa kwitanki yesisombululo (145±5℃) yesodium hydroxide (NaOH) kunye nesodium nitrite (NaNO2) yokufudumeza kwe-oxidant kunye ne-oxidation, umphezulu wezibophelelo zetsimbi wenze umaleko weMazibuthe Fe3O4 (Fe3O4) ) ifilimu, ubukhulu besiqhelo yi-0.6 — 0.8μm emnyama okanye eluhlaza okwesibhakabhaka. Zombini imigangatho ye-HG/20613-2009 kunye ne-HG/T20634-2009 yeefasteners ezisetyenziswa kwiinqanawa zoxinzelelo zifuna ukucwangciswa kweblue.
2, Phosphating
I-Phosphating yinkqubo yokwenza ifilimu yokuguqula imichiza ye-phosphate nge-chemical reaction kunye ne-electrochemical reaction. Ifilimu yokuguqula i-phosphate ibizwa ngokuba yifilimu ye-phosphating. Injongo ye-phosphating kukubonelela ngokukhuselwa kwesiseko sesinyithi kunye nokukhusela isinyithi ukuba singabikho kumlinganiselo othile. Isetyenziswe njenge-primer ngaphambi kokudweba ukuphucula ukunamathela kunye nokuxhatshazwa kwe-corrosion yefilimu yepeyinti; Ingasetyenziselwa ukunciphisa ingxabano kunye nokuthambisa kwinkqubo yokusebenza yentsimbi ebandayo. Umgangatho wedayamitha enkulu ephindwe kabini - izikhonkwane ezinentloko kwiinqanawa zoxinzelelo zifuna i-phosphating.
3, Idiphu eshushu yokufaka igalvanizing
I-zinc eshushu yokudipha kukuntywilisela ilungu lentsimbi emva kokususwa komhlwa kwisisombululo se-zinc esinyibilike kubushushu obuphezulu malunga ne-600 ℃, ukuze umphezulu welungu lentsimbi udityaniswe ne-zinc layer. Ubukhulu be-zinc layer abuyi kuba ngaphantsi kwe-65μm yepleyiti encinci engaphantsi kwe-5mm, kwaye ingabi ngaphantsi kwe-86μm ye-plate eshinyeneyo ye-5mm nangaphezulu. Ngaloo ndlela dlala injongo yokuthintela umhlwa.
4, iDacroll
I-DACROMET yinguqulelo kunye nesifinyezo se-DACROMET, i-DACROMET, i-DACROMET rust, i-Dicron. Yinto entsha yokugquma i-anticorrosive ene-zinc powder, i-aluminium powder, i-chromic acid kunye namanzi adibeneyo njengezona zinto ziphambili. Akukho ngxaki ye-hydrogen embrittlement, kwaye i-torque-preload consistency ilungile kakhulu. Ukuba ukhuseleko lokusingqongileyo lwe-chromium enehexavalent aluthathelwa ngqalelo, lufaneleke kakhulu kwiziqhoboshi ezinamandla ezineemfuno eziphezulu ze-anticorrosion.
5, Ukugalela koMbane
I-Electrogalvanizing, eyaziwa ngokuba yi-galvanizing ebandayo kushishino, yinkqubo yokusebenzisa i-electrolysis ukwenza iyunifomu, i-dense kunye nentsimbi edibeneyo okanye i-alloy deposition layer kumphezulu we-workpiece. Xa kuthelekiswa nezinye isinyithi, i-zinc ayibizi kakhulu kwaye kulula ukuyigquma isinyithi, i-electroplating yexabiso eliphantsi yokumelana ne-corrosion, isetyenziswa kakhulu ukukhusela iindawo zentsimbi, ngakumbi ngokuchasene nokuhlwa kwe-atmospheric, kwaye isetyenziselwa ukuhombisa. Ubuchule bokudibanisa bubandakanya i-slot plating (okanye i-hang plating), i-roll plating (efanelekile kwiindawo ezincinci), i-blue plating, i-automatic plating kunye ne-continuous plating (efanele ucingo, i-strip).
I-Electrogalvanizing yeyona nto isetyenziswa ngokuqhelekileyo kwi-fasteners yorhwebo. Ixabiso eliphantsi kwaye ikhangeleka ngcono, kwaye inokuza ngombala omnyama okanye ohlaza umkhosi. Nangona kunjalo, ukusebenza kwayo kwe-anticorrosion kuqhelekileyo, ukusebenza kwayo kwe-anticorrosion yeyona nto iphantsi kwi-zinc plating (i-coating) layer. Uvavanyo ngokubanzi lwe-electrogalvanizing engathathi hlangothi yokutshiza ityuwa kwiiyure ezingama-72, kukwakho ukusetyenziswa kwesixhobo sokutywina esikhethekileyo, ukwenza uvavanyo lokutshiza ityuwa ngokungathathi hlangothi ngaphezu kweeyure ezingama-200, kodwa ixabiso liyabiza, liphindwe ka-5 ~ 8 ukugalela ngokubanzi.
Izibophelelo zamalungu olwakhiwo ngokuqhelekileyo ziba zinc ezinemibala kunye ne-zinc emhlophe, njenge-8.8 yeebholiti zebakala zorhwebo.
I-6, i-Chrome ifakwe
I-Chrome plating ikakhulu kukuphucula ubulukhuni bomphezulu, ubuhle, ukuthintela umhlwa. I-Chromium plating inozinzo oluhle lweekhemikhali kwaye ayisebenzi kwi-alkali, i-sulfide, i-nitric acid kunye ne-organic acids eninzi, kodwa i-soluble kwi-hydrohalic acid (efana ne-hydrochloric acid) kunye ne-asidi ye-sulfuric eshushu. I-Chromium iphezulu kunesilivere kunye ne-nickel kuba ayitshintshi umbala kwaye igcina ukubonakala kwayo ixesha elide xa isetyenziswa.
7, iNickel plating
I-Nickel plating ayinyangeki, i-anti-corrosion, i-anti-rust, ubukhulu becala ubukhulu benkqubo bohlulwe ngokwe-electroplating kunye neendidi ezimbini zeekhemikhali.
8, ukufakwa kweZinc
Umgaqo weteknoloji ye-zincizing ye-powder kukubeka i-agent ye-zincizing kunye nentsimbi kunye neengxenye zetsimbi kwisithando somlilo kunye nobushushu ukuya malunga ne-400 ℃, kunye ne-athomu ye-zinc esebenzayo iya kungena kwintsimbi kunye neengxenye zetsimbi ukusuka ngaphandle ukuya ngaphakathi. Ngelo xesha, ii-athomu zentsimbi zisasazeka ngaphakathi ngaphakathi, eyenza i-zinc-iron intermetallic compound, okanye i-zinc coating, phezu kwendawo yentsimbi.
Iifasteners, nangona zincinci, zenza umsebenzi obaluleke kakhulu
I-Fasteners, nangona ubukhulu bayo buncinci, yenza umsebenzi obaluleke kakhulu - ukudibanisa izinto ezahlukeneyo zesakhiwo, izixhobo kunye nezixhobo zombane.Zisetyenziselwa ubomi bemihla ngemihla kunye noshishino, ekugcinweni nasekusebenzeni ukwakha.Uluhlu olubanzi lwe-fasteners luyafumaneka kwimarike.Kodwa kwimarike. ukuze ungenzi ukhetho olungalunganga, kufuneka ukwazi iintlobo zezi mveliso kunye neempawu zabo eziphambili.
Kukho iindlela ezininzi zokuhlela i-fasteners.Enye yazo isebenzisa ubukho beentambo.Ngoncedo lwayo, unokwenza udibaniso olungenakulinganiswa, oludume kakhulu kubomi bemihla ngemihla kunye neendawo zoshishino.Izibophelelo ezithandwayo ezithandwayo ziquka:Into nganye inenjongo ekhethekileyo. Ngokomzekelo, kwi-Bulat-Metal ungabona ukunyuswa kwemisebenzi eyahlukeneyo.Iibhotshi zeHex zilungele ukudibanisa izakhiwo zetsimbi kunye nezixhobo zezixhobo, kunye ne-self-tapping screws - umsebenzi wokulungisa. ezibandakanya izinto zokhuni.Uluhlu olusebenzayo lwe-stent lumisela ukuma kwayo, ubungakanani, izinto eziphathekayo kunye nezinye iiparameters.Izikhonkwane zomthi kunye nesinyithi zihluke ngokubonakalayo - yangaphambili inomtya omncinci kunye nokuphambuka kwi-cap.
Kwishishini lokwakha, iibholiti zesakhiwo kunye namantongomane zisetyenziswa ngokubanzi kwimveliso yeeshedi, iibhulorho, amadama kunye nezityalo zamandla.Enyanisweni, ukusetyenziswa kweebholiti zesakhiwo kunye namantongomane kwenziwa ngokutshintshana ngentsimbi ye-welding, oku kuthetha ukuba i-bolts yesakhiwo okanye i-arc welding. usebenzisa i-electrodes, kuxhomekeke kwisidingo sokujoyina isitya sensimbi kunye ne-beam.Indlela yokudibanisa nganye ineenzuzo zayo kunye nokungonakali.
Izikrufu zesakhiwo ezisetyenziselwa ukwakha uqhagamshelo lwentsimbi zenziwe ngentsimbi yodidi oluphezulu, ngokuqhelekileyo ibakala 10.9.IBakala 10.9 lithetha ukuba ukuxinana kwamandla okuxinana kwe-screw yesakhiwo malunga ne-1040 N/mm2, kwaye inokumelana ukuya kuthi ga kwi-90% yoxinzelelo lulonke. isetyenziswe kumzimba we-screw kwingingqi e-elastic ngaphandle kokuguqulwa okusisigxina.Xa kuthelekiswa nentsimbi ye-4.8, i-5.6 yentsimbi, i-8.8 yentsimbi eyomileyo, izikrufu zesakhiwo zinamandla aphezulu okuqina kwaye zinonyango olunzima ngakumbi lobushushu kwimveliso.
Ixesha lokuposa: Aug-20-2022