
I-Dacromet eyenziwe yagalvanized yeBanga lesi-8.8 kunye ne-10.9 ukuphakama - iibholithi ze-B7 ze-hex ze-tensile kunye namandongomane asebenzisa ubukhulu becala intsimbi yealloy eqinileyo njengesiseko semathiriyeli.
I-Dacromet eyenziwe yagalvanized yeBanga lesi-8.8 kunye ne-10.9 ephezulu-eqinile ye-B7 ye-hex head bolts kunye namandongomane asebenzisa ubukhulu becala intsimbi yealloy enamandla njengesiseko semathiriyeli. Ukutyunjwa kwe-B7 kubonisa ukuba izinto eziphathekayo zihlangabezana nemigangatho ethile ye-ASTM A193, eyaziwa ngokubanzi kwiipropati zabo zomatshini kunye neemfuno zokwakheka kweekhemikhali kwizicelo zoxinzelelo oluphezulu.
KwiBanga lesi-8.8 iibholiti kunye namantongomane, intsimbi yealloy iqulethe izinto ezinjengekhabhoni, imanganese, kunye nesilicon. Emva kokunyanga ubushushu obufanelekileyo, la macandelo asebenza kunye ukuze afezekise ubuncinci be-tensile amandla angama-800 MPa kunye namandla esivuno se-640 MPa. Oku kubenza bafaneleke ngokubanzi-ukuya phakathi-kumsebenzi onzima-umsebenzi apho ukuqina okuthembekileyo phantsi kwemithwalo ebalulekileyo kuyadingeka.
IBanga le-10.9 i-high-tensile variants, kwelinye icala, zenziwe nge-alloy steel kunye nolawulo oluchanekileyo malunga nokwakheka kweekhemikhali kunye nenkqubo yonyango yokushisa. Bangafumana ubuncinci bokuqina be-1000 MPa kunye namandla esivuno angama-900 MPa, okubavumela ukuba bamelane nemithwalo ephezulu kakhulu, iintshukumo, kunye noxinzelelo lomatshini. Eli bakala liphezulu lamandla lidla ngokusetyenziswa kuqhagamshelo olubalulekileyo lwesakhiwo apho ukungaphumeleli kungenakuzikhethela.
Isici esicacileyo sezi mveliso yiDacromet galvanization. I-Dacromet yokwambathisa lunyango oluphezulu lwe-anti-corrosion oludityaniswe ikakhulu zii-zinc flakes, iiflakes ze-aluminium, iichromates, kunye nezibophelelo zendalo. Xa isetyenziswe kumphezulu we-alloy bolts yensimbi kunye namantongomane, yenza i-dense, iyunifomu, kunye nefilimu ehambelanayo enika ukuxhathisa okuphezulu kwe-corrosion xa kuthelekiswa neendlela zendabuko ze-galvanization.
Umgca wemveliso ye-Dacromet yeBanga le-8.8 kunye ne-10.9 ephezulu-i-tensile B7 hex head bolts kunye namantongomane abandakanya iimodeli ezahlukeneyo ezihlelwe ngokobukhulu, ubude, kunye neemfuno ezithile zesicelo:
Iimodeli zoMgangatho weMetric kunye neeMpari: Ifumaneka kuluhlu olubanzi lweemetric kunye nobukhulu bobukhosi. Kwi-metric system, i-diameter ye-bolt ngokuqhelekileyo isuka kwi-M6 ukuya kwi-M36, ngelixa kwi-imperial system, igubungela ukusuka kwi-1/4 "ukuya kwi-1 - 1/2". Ubude beebholiti bunokwahluka ukusuka kwi-20mm (okanye 3/4 ") ukuya kwi-300mm (okanye i-12") okanye ngaphezulu, kuxhomekeke kwiimfuno zangempela zeeprojekthi ezahlukeneyo. Iimodeli ezisemgangathweni zilandela imigangatho efanelekileyo yamazwe ngamazwe kunye neyesizwe yeebholiti ze-hex zentloko kunye namantongomane, iqinisekisa ukuhambelana nezitshixo eziqhelekileyo, iisokethi, kunye nezinye izixhobo zokuqinisa.
Phezulu - Umthwalo - Iimodeli eziKhethekileyo zesakhono: Kwizicelo zemizi-mveliso enzima, iiprojekthi zolwakhiwo olukhulu, kunye nofakelo lweziseko ezingundoqo ezibalulekileyo, imodeli ephezulu yomthamo inikezelwa. Ezi bholiti kunye namandongomane zihlala zinedayamitha ezinkulu kunye neentloko ezityebileyo ze-hex zokuphatha amandla amakhulu kunye nokucheba. Zenzelwe ngokukodwa ukusetyenziswa kwizicelo ezifana nokuhlanganisa oomatshini abanzima, ukwakhiwa kwebhulorho, kunye neziseko zokwakha eziphakamileyo, apho ukukwazi ukumelana nemithwalo enzima kubalulekile.
Ukonakala - Imifuziselo Eyongeziweyo eNganyangekiyo: Ngaphandle komgangatho we-Dacromet galvanization, ezinye iimodeli zinokufumana unyango olongezelelweyo lokuchasana nomhlwa okanye zisebenzise imiqulu ephuculweyo ye-Dacromet coating. Le mifuziselo eyongeziweyo exhathisayo - exhathisayo iphuhliselwa iimeko ezingqongileyo ezinoburharha obugqithisileyo, njengamaqonga angaphesheya konxweme, izityalo zemichiza, kunye neendawo ezinamaqondo aphezulu ongcoliseko lomoya kunye nokufuma. Banokubonelela ngokhuseleko olwandisiweyo kwi-corrosion enzima, ukuqinisekisa ukuthembeka kwexesha elide lenkqubo yokuqinisa.
Ukuveliswa kweDacromet yeBanga le-8.8 kunye ne-10.9 ephezulu-tensile ye-B7 hex head bolts kunye namantongomane ibandakanya amanyathelo achanekileyo amaninzi kunye nomgangatho ongqongqo - amanyathelo okulawula:
Ukulungiselela Izinto Eziluncedo: Izinto ezisemgangathweni eziphezulu ze-alloy zensimbi zixutywe ngokucophelela ukuhlangabezana neemfuno ze-ASTM A193 B7 kunye nebakala elithile lamandla (iBakala 8.8 okanye i-10.9). Ukuhlolwa okungqongqo kuqhutyelwa kwimichiza yeekhemikhali, iipropati zomatshini, kunye nomgangatho ophezulu wentsimbi. Iintsimbi zentsimbi okanye iintonga zinqunyulwa zibe ubude obufanelekileyo ngokwemilinganiselo echaziweyo yeebholiti kunye namantongomane.
Ukubumba: Intsimbi ye-alloy yenziwa kwi-hex head and shank (yeebholiti) okanye imilo ye-hex nut ngokusebenzisa i-cold-heading okanye i-hot-forging process. Isihloko esibandayo sisetyenziswa ngokuqhelekileyo kwiibholiti ezincinci kunye namantongomane, asebenzayo kwimveliso yobuninzi kwaye anokwenza ngokuchanekileyo imilo ngelixa ugcina ukuchaneka kwe-dimensional. Hot - forging isetyenziswa ezinkulu - ububanzi okanye eliphezulu - iibholiti amandla kunye namantongomane, apho intsimbi ifudunyezwe kwimo ethambileyo kwaye ke imilo phantsi koxinzelelo oluphezulu ukufikelela amandla afunekayo kunye nemilinganiselo echanekileyo.
Umsonto: Emva kokwenza, iibholiti ziqhuba imisebenzi yokuthunga. Ukuqengqeleka kwemisonto yindlela ekhethwayo njengoko idala intambo eyomeleleyo ngokubanda - ukusebenza kwentsimbi, ukuphucula ukuxhathisa kokudinwa kweebholiti. Iidiyezi ezikhethekileyo zokuthunga zisetyenziselwa ukuqinisekisa ukuba i-pitch yentambo, iprofayili, kunye nemilinganiselo iyahlangabezana nemigangatho efanelekileyo, iqinisekisa ukuhambelana okufanelekileyo kunye namantongomane. Ngamantongomane, iintambo zangaphakathi zinqunywe ngokucophelela okanye zenziwe ukuze kuqinisekiswe ukuhambelana ngokuchanekileyo kunye neebholiti ezihambelanayo.
Unyango lobushushu: Ukufezekisa iBanga le-8.8 elifunekayo okanye i-10.9 iimpawu zemishini, iibholiti ezenziweyo kunye namantongomane zixhomekeke kwiinkqubo zokunyanga ukushisa. Oku kubandakanya i-annealing ukuthambisa intsimbi kunye nokuphelisa uxinzelelo lwangaphakathi, ukucima ukunyusa ubulukhuni kunye namandla, kunye nokufudumeza ukulungisa ukuqina kunye nokuqina kwinqanaba elilelona lifanelekileyo. Ubushushu - inkqubo yonyango ilawulwa ngokuchanekileyo ukuze kuqinisekiswe ukuba iibholiti kunye namantongomane ahlangabezana namandla angqongqo kunye neemfuno zokusebenza kwamabakala abo.
Dacromet Coating Isicelo: Okokuqala, iibholiti kunye namantongomane zicocwe ngokucokisekileyo ukuze kususwe nakuphi na ukungcola, ioli, okanye isikali phezu komhlaba. Emva koko, zibhaptizwe kwisisombululo se-Dacromet okanye zigqunywe ngokutshiza, ezisasaza ngokulinganayo isisombululo esiqukethe i-zinc flakes, i-aluminium flakes, i-chromates, kunye ne-binders kwindawo yazo. Emva kokugubungela, amacandelo aphiliswa kwiqondo lokushisa eliphezulu (ngokuqhelekileyo malunga ne-300 ° C). Ngethuba lenkqubo yokunyanga, amacandelo esisombululo se-Dacromet asabela ukuze enze i-dense, i-corrosion - i-resistant-resistant coating kunye ne-adhesion egqwesileyo kwi-substrate yensimbi ye-alloy.
INdibano kunye noHlolo loMgangatho: Iibholiti zidibaniswe namantongomane ahambelanayo. Yonke ibhetshi yeemveliso iphantsi kokuhlolwa okungqongqo komgangatho. Ukuhlolwa kwe-Dimensional kwenziwa ukuze kuqinisekiswe ukuba ububanzi, ubude, ukuchazwa kwentambo, kunye nobukhulu bentloko yeebholiti kunye namantongomane adibana nemigangatho. Iimvavanyo zoomatshini, njengamandla okuqina, umthwalo wobungqina, kunye ne-torque - iimvavanyo zoxinzelelo, ziyenziwa ukuze kuqinisekiswe umthwalo-umthamo wokuthwala kunye nokusebenza kwebhantshi - izibini zenut. Ukuhlolwa okubonakalayo kukwaqhutywa ukujonga iziphene zomhlaba, ukugubungela okufanelekileyo kweDacromet yokwambathisa, kunye naluphi na ukungathotyelwa kweemfuno zenkangeleko. Iimveliso kuphela ezidlula zonke iimvavanyo zomgangatho ezivunyiweyo ukupakishwa kunye nokuhanjiswa.
Unyango lomphezulu we-Dacromet galvanization yeyona nto iphambili ekusebenzeni okuphezulu kwezi bolts kunye namantongomane:
Unyango lwangaphambili: Ngaphambi kokugqoka i-Dacromet, iibholiti kunye namantongomane ziphathwa kwangaphambili ukuze kuqinisekiswe ukunamathela kakuhle kwengubo. Le nkqubo yonyango yangaphambili iqala ngokususa amafutha, apho amacandelo acocwa ngezinyibilikisi okanye izisombululo zealkaline ukususa ioli, igrisi, kunye nezinye izinto ezingcolisa indalo. Emva koko, i-pickling iqhutyelwa ngesisombululo se-asidi ukususa umhlwa, isikali, kunye nokungcola kwe-inorganic ebusweni. Emva kokukhetha, iibholiti kunye namantongomane zihlanjululwe ngokucokisekileyo ukuze ziphelise i-asidi eseleyo, kwaye ekugqibeleni, zomile ukulungiselela i-coating ye-Dacromet.
Inkqubo yoKwaleka iDacromet: Zimbini iindlela zokusebenzisa i-Dacromet yokwambathisa: ukuntywiliselwa kunye nokutshiza. Kwindlela yokucwiliswa, i-bolts yangaphambili kunye namantongomane afakwe ngokupheleleyo kwisisombululo se-Dacromet, evumela ukuba isisombululo sigubungele ngokupheleleyo ubuso. Kwindlela yokutshiza, isisombululo seDacromet sifafazwe ngokulinganayo phezu komhlaba usebenzisa izixhobo zokutshiza. Emva kokugubungela, amacandelo afakwe kwi-oven ukunyanga. Ngethuba lenkqubo yokunyanga, amanzi kwisisombululo se-Dacromet ayaphuphuma, kwaye i-zinc flakes, i-aluminium flakes, i-chromates, kunye ne-binders zisabela ngokwekhemikhali ukuze zenze i-coating eqhubekayo, exineneyo kunye nezinzileyo kunye nobukhulu obumalunga ne-5 - 15 microns.
Isithuba - unyango: Kwezinye iimeko, i-post - unyango lunokwenziwa emva kokufakwa kwe-Dacromet. Oku kunokubandakanya unyango lwe-passivation kunye neekhemikhali ezikhethekileyo zokuphucula ngakumbi ukuxhathisa ukubola kwengubo, okanye ukusebenzisa i-topcoat ukuphucula ukuxhathisa kwe-abrasion kunye nokubonakala komphezulu. I-Post - unyango lunceda ukunyusa ukusebenza kwe-Dacromet - iibholiti ezigqunyiweyo kunye namantongomane kwaye zilungelelanise kwiimfuno ezahlukeneyo zesicelo.
I-Dacromet yeBanga le-8.8 kunye ne-10.9 ephezulu - i-tensile ye-B7 hex head bolts kunye namantongomane asetyenziswa ngokubanzi kwiinkalo ezahlukeneyo zobunjineli kunye nokwakha:
Ukwakha kunye noKwakha: Kwiiprojekthi ezinkulu zokwakha, ngakumbi izakhiwo eziphakamileyo, iibhulorho, kunye nezityalo zemizi-mveliso, ezi zibini zebholithi zisetyenziselwa ukuqhagamshela imiqadi yentsimbi, iikholamu kunye neetrasi. Amandla abo aphezulu aqinisekisa ukuzinza kunye nomthwalo - ukuthwala umthamo wesakhiwo sokwakha, ngelixa i-Dacromet galvanization inika ukhuseleko lwexesha elide lokutshabalalisa, nakwiindawo zangaphandle ezivezwe emoyeni, imvula kunye nezinye iimeko zemozulu.
Oomatshini abaNzima kunye nokuVeliswa kweZixhobo: Ekwenziweni koomatshini abanzima, abafana nezixhobo zokwakha, oomatshini basemigodini, kunye noomatshini bezolimo, ezi bholithi ziphezulu kunye namandongomane zibalulekile ekuhlanganiseni amacandelo abalulekileyo. Ziyakwazi ukumelana nemithwalo enzima, ukungcangcazela, kunye nokothuka okuveliswa ngexesha lokusebenza koomatshini. Ukuchasana nokugqwesa okugqwesileyo kwengubo ye-Dacromet ikwakhusela iibholiti kunye namantongomane ukusuka kwiimeko ezinzima zokusebenza, ezifana nokuvezwa kokungcola, ukufuma kunye neekhemikhali.
Imizi-mveliso yeemoto kunye ne-Aerospace: Kushishino lweemoto, iBanga lesi-8.8 kunye ne-10.9 iibholiti eziqinileyo kunye namandongomane zisetyenziswa ekudibaneni kweenjini, ukwakhiwa kwetshisi, kunye neenkqubo zokunqunyanyiswa. Iibholiti zomgangatho ophezulu we-10.9 zibalulekile ekukhuseleni amacandelo enjini kunye nokuqinisekisa ukusebenza kunye nokhuseleko lwesithuthi phantsi kweemeko ezahlukeneyo zokuqhuba. Kwishishini le-aerospace, apho umgangatho ongqongqo kunye nemigangatho yokusebenza kufuneka, ezi bholithi kunye namandongomane asetyenziselwa ukudibanisa izinto zenqwelomoya. Ukwenziwa kwazo okuchanekileyo, ukomelela okuphezulu, kunye nokumelana nomhlwa okuthembekileyo kubalulekile kukhuseleko nokusebenza kwenqwelomoya.
Amandla kunye nesiZukulwana saMandla: Kwimizi-mveliso yamandla, kuquka i-thermal, inyukliya, kunye nezibonelelo zamandla avuselelekayo, ezi zibini zebholithi-nut zisetyenziselwa ukuqhobosha izixhobo, imibhobho, kunye namalungu olwakhiwo. Banokumelana namaqondo obushushu aphezulu, uxinzelelo, kunye noxinzelelo lomatshini olukhoyo kwindawo yokuvelisa amandla. I-Dacromet coating ikhusela iibholiti kunye namantongomane kwi-corrosion ebangelwa ngumphunga, iikhemikhali, kunye nezinye izinto, ukuqinisekisa ukusebenza okuthembekileyo kwexesha elide lezixhobo zokuvelisa amandla.
I-Offshore and Marine Engineering: Kumaqonga angaphesheya kolwandle, iinqanawa, kunye nofakelo lwaselwandle, apho ukuvezwa kumanzi anetyuwa, ukufuma okuphezulu, kunye nemekobume erhabaxa yaselwandle ihlala njalo, ezi bholiti kunye namantongomane zixabiswa kakhulu. Ukudityaniswa komgangatho ophezulu wentsimbi ye-alloy kunye ne-Dacromet galvanization kubenza bakwazi ukujamelana nemiphumo ephazamisayo yamanzi olwandle, ukuthintela ukusilela kwesakhiwo ngenxa ye-corrosion. Zisetyenziselwa ukuqinisa amacandelo ahlukeneyo aselwandle, ukuqinisekisa ukhuseleko kunye nokuqina kwezakhiwo zaselwandle kunye nezaselwandle.
Amandla aphezulu ngokuKhethekileyo: NgeBanga lesi-8.8 kunye ne-10.9 yamandla okulinganisa, ezi bholithi kunye namantongomane zinika ukuqina okubalaseleyo kunye nokomelela kwesivuno. Bangakwazi ukudibanisa ngokuqinileyo amacandelo esakhiwo kunye nokumelana nemithwalo enzima, ukungcangcazela, kunye nemikhosi yokucheba, ukuqinisekisa ukuzinza kunye nokhuseleko lwezakhiwo zobunjineli kwizicelo ezahlukeneyo ezifunayo.
Ukunyangwa kokuNgqwesa okuPhezulu: I-galvanization ye-Dacromet ibonelela ngokumelana nokugqwesa okugqwesileyo, ukodlula lee iindlela zemveli zokugalela. Ukubunjwa okuyingqayizivele kwe-Dacromet yokugqoka kubumba ifilimu ekhuselekileyo ekhuselayo ehlukanisa ngokufanelekileyo isiseko sesinyithi kwindawo engcolileyo. Iyakwazi ukuxhathisa ukukhukuliseka komswakama, ityuwa, iikhemikhali, kunye nezinye izinto ezinobungozi, ukwandisa kakhulu ubomi benkonzo yeebholiti kunye namantongomane xa kuthelekiswa neemveliso eziqhelekileyo. Oku kubenza bafaneleke ngokukodwa ukusetyenziswa kwiindawo ezilukhuni apho ukubola kuyinkxalabo enkulu.
Ukuqina okuthembekileyo nokuKhuselekileyo: Idizayini yentloko ye-hex yeebholiti kunye namantongomane ahambelanayo inika indlela ethembekileyo nekhuselekileyo yokuqinisa. Ubume be-hexagonal buvumela ukuqiniswa lula kunye nokukhulula ngeentsimbi okanye iziseko, kunye noyilo lwentambo oluchanekileyo luqinisekisa ukuqina okuqinileyo, okukwazi ukumelana neentlobo ezahlukeneyo zemithwalo yemishini. Ukudityaniswa kwezinto eziphezulu zamandla kunye nokubandakanyeka okufanelekileyo kwentambo kuqinisekisa ukuba ukuqina kuhlala kukhuselekile naphantsi kweemeko ezinzima.
Ukuhambelana kakuhle kunye nokuMiselwa koMgangatho: Ezi bolts kunye nee nuts zihambelana nemigangatho efanelekileyo yamazwe ngamazwe kunye nelizwe, ukuqinisekisa ukuhambelana okugqwesileyo kwiiprojekthi ezahlukeneyo kunye namashishini. Imilinganiselo esemgangathweni kunye neenkcukacha zomsonto zivumela ukutshintshwa lula kunye nokutshintshisana, ukwenza lula ukuthenga, ukufakela, kunye neenkqubo zokulondoloza. Oku kubekwa emgangathweni kukwanciphisa umngcipheko weempazamo ekudibaneni kwaye konyusa impumelelo yeprojekthi iyonke.
Ixesha elide - Ukusebenza okuzinzileyo kweXesha: Ngeenkqubo ezingqongqo zokuvelisa, unyango oluchanekileyo lobushushu, kunye nomgangatho ophezulu we-Dacromet coating, ezi bhotshi kunye namantongomane zigcina ukusebenza okuzinzileyo komatshini kunye ne-anti-corrosion ixesha elide. Banokusebenza ngokuthembekileyo phantsi kweemeko ezahlukeneyo zokusebenza ezinzima ngaphandle kokuthotywa kokusebenza okubalulekileyo, ukunciphisa iindleko zokugcinwa kunye nokunciphisa umngcipheko wokungaphumeleli okungalindelekanga. Olu zinzo lwexesha elide lubalulekile ekuqinisekiseni ukusebenza ngokuqhubekayo kweziseko ezingundoqo nezixhobo.
Ukukhathalela indalo: Xa kuthelekiswa nonyango lwemveli oluchasene nomhlwa olunokuvelisa izinto eziyingozi, inkqubo yokwaleka yeDacromet ihambelana nokusingqongileyo. Iqulethe umxholo wesinyithi onzima kakhulu kwaye ayivelisi isixa esikhulu senkunkuma ngexesha lenkqubo yokuvelisa, ukuhlangabezana neemfuno zolwakhiwo lobunjineli bale mihla ukukhuselwa kokusingqongileyo ngelixa lusabonelela ngokhuseleko lokutya kokusebenza okuphezulu.