Kugadzira screw fasteners, kurapa kwepamusoro inzira ine isingadzivisike, vatengesi vazhinji mukubvunza nezve screw fasteners, nzira yekurapa pamusoro, iyo yakajairwa network maererano neruzivo rwakapfupikiswa nezve pamusoro peiyo screw fasteners yakajairika kugadzirisa nzira kune marudzi masere. yemafomu, akadai se: dema (bhuruu), phosphating, inopisa dip zinc, dacromet, magetsi emagetsi, chrome plating, nickel uye zinc impregnation.Iyo fastener screw surface treatment iri kuburikidza neimwe nzira yekugadzira chivharo chekuvhara pamusoro pechishandiso chebasa, chinangwa chayo ndechekuita kuti pamusoro pechigadzirwa ive yakanaka, anti-corrosion effect.
Nzira sere dzepamusoro dzekurapa dzefastener screws:
1, Dema (bhuruu)
Mafasteners aifanira kurapwa nehutema akaiswa mutangi remhinduro (145±5 ℃) ye sodium hydroxide (NaOH) uye sodium nitrite (NaNO2) oxidant kupisa uye oxidation, pamusoro pezvitsigiso zvesimbi zvakagadzira jira remagineti Fe3O4 (Fe3O4. ) firimu, ukobvu kazhinji 0.6 - 0.8μm dema kana bhuruu dema.Ose ari maviri HG/20613-2009 uye HG/T20634-2009 zviyero zvezvisungo zvinoshandiswa mumidziyo yekumanikidza zvinoda bhuruu kugadzirisa.
2, Phosphating
Phosphating inzira yekugadzira phosphate kemikari inoshandura firimu nemakemikari uye electrochemical reaction.Iyo phosphate inoshandura firimu inonzi phosphating film.Chinangwa chephosphating ndechekupa dziviriro yesimbi yepasi uye kudzivirira simbi kubva pakuora kusvika pamwero wakati.Inoshandiswa sekutanga pamberi pekupenda kuti uvandudze kunamatira uye kusagadzikana kwekuora kwefirimu repende;Inogona kushandiswa kuderedza friction uye lubrication musimbi inotonhora kushanda maitiro.Chiyero chedhayamita hombe kaviri - misoro yezvitsigiro zvemidziyo yekumanikidza inoda phosphating.
3, Kupisa dip galvanizing
Kupisa zinc dipping ndeyekunyudza nhengo yesimbi mushure mekubvisa ngura mumhinduro ye zinc yakanyungudutswa pakupisa kwepamusoro kunosvika 600 ℃, kuitira kuti pamusoro penhengo yesimbi inonamirwa ne zinc layer.Ukobvu hwezinc layer haifanire kunge iri pasi pe65μm yendiro yakatetepa isingasviki 5mm, uye isingasviki 86μm kune gobvu ndiro 5mm uye pamusoro.Saka tamba chinangwa chekudzivirira ngura.
4, Dacroll
DACROMET ishanduro yeDACROMET uye chidimbu, DACROMET, DACROMET rust, Dicron.Iyo itsva anticorrosive coating ine zinc poda, aluminium poda, chromic acid uye deionized mvura sezvinhu zvikuru.Iko hakuna hydrogen embrittlement dambudziko, uye torque-preload kuenderana kwakanaka kwazvo.Kana kuchengetedzwa kwezvakatipoteredza kwehexavalent chromium kusingatariswe, iyo inonyanya kukodzera kune yakakwirira simba fasteners ine yakakwirira anticorrosion zvinodiwa.
5, Electric galvanizing
Electrogalvanizing, inozivikanwawo sekutonhora galvanizing muindasitiri, inzira yekushandisa electrolysis kuumba yunifomu, dense uye yakanyatso kusanganiswa simbi kana alloy deposition layer pamusoro peiyo workpiece.Kana ichienzaniswa nedzimwe simbi, zingi yakachipa uye iri nyore kupfekedza simbi, yakaderera kukosha kwecorrosion resistance electroplating, inoshandiswa zvakanyanya kuchengetedza simbi zvidimbu, kunyanya kurwisa ngura yemuchadenga, uye inoshandiswa pakushongedza.Nzira dzekugadzira dzinosanganisira slot plating (kana kuturika plating), roll plating (yakakodzera zvikamu zvidiki), bhuruu plating, otomatiki plating uye inoenderera plating (yakakodzera waya, tambo).
Electrogalvanizing ndiyo inonyanya kushandiswa coating for commercial fasteners.Yakachipa uye inotaridzika zviri nani, uye inogona kuuya mune nhema kana yegirini yemauto.Nekudaro, iyo anticorrosion performance yakajairika, iyo anticorrosion performance ndiyo yakaderera mu zinc plating (coating) layer.General electrogalvanizing kusarerekera munyu kupfapfaidza bvunzo mukati maawa makumi manomwe nemaviri, kune zvakare kushandiswa kweiyo chaiyo sealant, ichiita iyo isina kwayakarerekera munyu yekupfapfaidza bvunzo kupfuura maawa mazana maviri, asi mutengo unodhura, i5 ~ 8 zvakapetwa kaviri galvanizing.
Mafasteners ezvikamu zvezvimiro anowanzo ane mavara zinc uye chena zinc, senge 8.8 giredhi giredhi mabhaudhi.
6, Chrome yakavharwa
Chrome plating inonyanya kuvandudza kuoma kwepamusoro, runako, kudzivirira ngura.Chromium plating ine kugadzikana kwakanaka kwemakemikari uye haina kuita mualkali, sulfide, nitric acid uye yakawanda organic acids, asi inonyungudika muhydrohalic acid (senge hydrochloric acid) uye inopisa sulfuric acid.Chromium yakakwirira kune sirivheri uye nickel nekuti haishandure ruvara uye inochengetedza kutaridzika kwayo kwenguva yakareba kana ichishandiswa.
7, Nickel plating
Nickel plating inonyanya kupfeka-inodzivirira, anti-corrosion, anti-ngura, kazhinji kutetepa kwemaitiro akakamurwa kuita electroplating uye makemikari mapoka maviri.
8, Zinc impregnation
Iyo musimboti wepoda zincizing tekinoroji ndeyekuisa iyo zincizing agent uye iron nesimbi zvikamu muchoto chezincizing uye kupisa kusvika ku400 ℃, uye maatomu anoshanda ezinc anozopinda musimbi nesimbi zvikamu kubva kunze kuenda mukati.Panguva imwecheteyo, maatomu esimbi anopararira kubva mukati kunze, ayo anoumba zinc-iron intermetallic compound, kana zinc coating, pamusoro pezvikamu zvesimbi.
Fasteners, pasinei nehukuru hwavo huduku, vanoita basa rinokosha zvikuru
Fasteners, pasinei nehukuru hwavo huduku, vanoita basa rinokosha zvikuru - kubatanidza zvinhu zvakasiyana-siyana zvekugadzirisa, midziyo nemidziyo. Zvinoshandiswa muupenyu hwezuva nezuva uye indasitiri, mukugadzirisa uye basa rekuvaka. Kune zvakasiyana-siyana zvekusungirira zviripo pamusika. kuti usaite sarudzo isiriyo, iwe unofanirwa kuziva marudzi ezvigadzirwa izvi uye iwo makuru maficha.
Kune nzira dzakawanda dzekuisa mumapoka mafasteners.Imwe yadzo inoshandisa kuvepo kweshinda.Nerubatsiro rwayo, unogona kugadzira zvinongedzo zvinobatika, izvo zvinonyanya kufarirwa muhupenyu hwezuva nezuva nenzvimbo dzeindasitiri.Inofarirwa tambo dzakasungirirwa dzinosanganisira:Chimwe nechimwe chine chinangwa chakakosha. Semuenzaniso, muBulat-Metal unogona kuona makomo emabasa akasiyana-siyana.Hex bolts yakanakira kujoina zvivakwa zvesimbi uye midziyo yemidziyo, pamwe chete ne-self-tapping screws - yebasa rekugadzirisa rinosanganisira zvinhu zvehuni.Uyero hwekushanda hwe stent hunosarudza. chimiro, ukuru, zvinhu uye mamwe ma parameters.Masvikiro pahuni nesimbi anoonekwa zvakasiyana - yekutanga ine shinda yakaonda uye kutsauka kubva muvharo.
Muindasitiri yekuvaka, mabhaudhi ezvimiro uye nzungu anoshandiswa zvakanyanya mukugadzirwa kwemashedhi, mabhiriji, madhamu uye magetsi zvidyarwa.Kutaura zvazviri, kushandiswa kwemabhaudhi ekugadzira uye nzungu kunoitwa zvakachinjana nesimbi yewelding, zvinoreva kuti angave mabhaudhi echimiro kana arc welding. kushandisa ma electrodes, zvichienderana nekudiwa kwekubatanidza ndiro yesimbi uye danda.Nzira imwe neimwe yekubatanidza ine zvigaro zvayo uye zvisingabatsiri.
Structural screws anoshandiswa mukuvaka matanda ekubatanidza anogadzirwa nesimbi yepamusoro-giredhi, kazhinji giredhi 10.9.Grade 10.9 zvinoreva kuti tensile simba density ye structural screw inosvika 1040 N/mm2, uye inokwanisa kumira kusvika 90% yekushushikana kwese. inoshandiswa kune screw body munharaunda elastic isina deformation yekusingaperi.Kuenzaniswa ne 4.8 iron, 5.6 iron, 8.8 yakaoma simbi, structural screws ane yakakwirira tensile simba uye ane zvakanyanya kuoma kupisa kurapwa mukugadzirwa.
Nguva yekutumira: Aug-20-2022