Izikrufu zokuzicofa ngeewasha

Ubona i-self-tapping screws kunye ne-washers kwiphepha elithile okanye kwikhathalogu, kwaye kulula ukucinga ukuba sisijiko nje esiza kunye nediski encinci yesinyithi. Oda i-diameter, ubude, kunye nohlobo lokuqhuba, kwaye ugqibile. Leyo yimpazamo yokuqala. Inyaniso kukuba, loo ndibaniselwano-i self-tapping screw kunye newasha yayo-yiyunithi enye esebenzayo, kwaye ukuyifumana iphosakele akuthethi nje ukudibanisa okukhululekile; kunokuthetha ukuhluba umphathi, ukukrazuka kweplastiki, okanye indlela evuzayo ebonakala kwiinyanga ezintandathu kamva. Ndibone iiprojekthi ezininzi kakhulu apho oku kuthathwa njengento yorhwebo, kunye neendleko-kwiwaka ngalinye iyona nto ithatha isigqibo, ekhokelela ekufowulweni nasekusebenzeni kwakhona okuye kwacima nayiphi na imali eyongiwe.

IWasher ayisosikhala nje

Masiqale ngewasha ngokwayo. Ephepheni, umsebenzi wayo kukusasaza umthwalo. Kodwa nge self-tapping screw, ngokukodwa kwii-substrates ezithambileyo ezifana ne-aluminium extrusions, izindlu zeplastiki, okanye i-sheet metal, indima ye-washer iba yinto ebalulekileyo kwisigaba sokucofa. Iwasha eflethi ene-OD encinci kakhulu okanye igeyiji encinci inokugrumba kumphezulu wezinto ngexesha lokugqibela le-torque-down, i-counter-rotation ngokufanelekileyo kwaye ihlehlise ukubunjwa kwentambo osanda kuyidala. Akwenzeki ngamaxesha onke, okwenza kube nzima ukuxilonga kumgca-nje ukusilela ngokubambisana ngamaxesha athile.

Sifunde oku kabuhlungu kwibhetshi yezindlu zangaphandle ze-LED. I-specke ibize intsimbi engatyiwayo izikrufu zokuzicofa ngeewasha ukuncamathisela iilensi zepolycarbonate kwizakhelo zealuminiyam. Iiwasha ezibonelelweyo ziziwasha ezisemgangathweni ze-SAE. Ekuvavanyeni, babelungile. Ebaleni, emva kokuhamba ngebhayisekile eshushu, saqala ukubona iilensi zigingqika kunye nokungena kwamanzi. Ingxaki? Izixhobo zokuhlamba ziye zaluma kancinane kwipolycarbonate, zenza i-micro-gap njengoko iplastiki irhubuluza, eyathi ke yavumela isikrufu ukuba sibuye umva ngomzuzu. Ukulungiswa yayingeso isikrufu esikhulu; yayitshintshela kwi-washer ene-OD enkulu kunye nesitywina esibophekileyo, esisebenza njenge-spreader edibeneyo kunye ne-gasket. Isikrufu senze i-clamping; inkqubo yokuwasha iye yatywina kwaye yagcina umthwalo obambeleyo.

Oku kukhokelela kwinqaku malunga nokukhetha. Awukhethi nje isikrufu kwaye wongeze iwasha. Ukhetha inkqubo yokuqinisa. Ngaba yeyokumelana nokungcangcazela? Ke mhlawumbi inkwenkwezi okanye iwashi yezinyo idityanisiwe. Yeyokutywinwa? Emva koko irabha edibeneyo okanye i-EPDM washer inxalenye yeyunithi. Iinkampani ezisebenza ngokukodwa koku, njenge-Handan Zitai Fastener Manufacturing Co., Ltd. ngaphandle kweso siseko sikhulu semveliso eYongnian, zihlala zifumana oku. Ixabiso labo alikho nje kumthamo; kukuqonda ukuba la malungu asetyenziswa ngokwenyani, iimeko eziguquguqukayo. Indawo yabo kufutshane neendlela ezinkulu zothutho kuthetha ukuba babone iindidi ezininzi zeemfuno zezicelo ezivela kumashishini ahlukeneyo, azisa uluhlu lwemveliso yabo.

I-Tread-Forming vs. Trap-Cutting Trap

Kulapho nabantu abanamava banokukhubeka. Ayizizo zonke izikrufu zokuzibetha zenziwe ngokulinganayo, kwaye ukhetho lwewasha lusebenzisana nale nto. Izikrufu zokwenza imisonto (njengezo zeplastiki okanye iintsimbi ezithambileyo) zisusa imathiriyeli. Badala uxinzelelo lweradial ephezulu. Ukuba ubhanqa loo nto kunye newasha encinci, eqinile, ugxininisa lonke olo xinzelelo kwindawo encinci, ubeka umngcipheko wokuqhekeka komphathi. Iwasha enkulu, ethambileyo inganceda ukuhambisa olo xinzelelo lofakelo.

Izikrufu zokusika imisonto, kwelinye icala, zisuse izinto. Zixhaphakile kwi-castings okanye isinyithi esityebileyo. Apha, ingozi yi-swarf-chips ezincinci zentsimbi. Iwasha ecaba iyakwazi ukubambisa ezi chips kumphezulu, yonakalise isiphelo okanye ithintele indawo yokuhlala egungxulwayo. Kwezinye iindibano ezichanekileyo, sisebenzise iiwasha ezinendawo encinci yeconical okanye nokuba yinkxaso engalukwanga ukufunxa kwaye iqulathe loo nkunkuma. Yinkcukacha encinci engazange ivele kwi-BOM eqhelekileyo.

Ndikhumbula umfanekiso womlindi oomatshini apho sasisebenzisa isikrufu esiqhelekileyo sokusika intambo kunye newasha kwintsimbi ekhatywayo. Indibano yayibonakala iqinile. Kwiveki kamva, kwakukho umhlwa odubulayo kwisangqa esigqibeleleyo phantsi kwayo yonke iwasha. Iitshiphusi ezivaleleke ngaphantsi zibambe ukufuma kwaye ziqalise ukonakala kwegalvanic. Isisombululo ibikukusebenzisa isikrufu esakhelwe ngaphakathi, iwasha evalelweyo ethe kratya kancinane enomgangatho wokuthwala i-serrated-inqumle inkunkuma encinci kwaye itywine ujongano ngcono. Ixabisa i-15% ngaphezulu kweyunithi nganye kodwa yashenxisa umba omkhulu wobuhle kunye nobomi obude.

Ukubhanqa kwezinto eziphathekayo kunye neDrama yeGalvanic

Ukuthetha nge-corrosion, i-trio yezinto eziphathekayo-i-screw, i-washer, kunye ne-substrate-yisethi yekhemistri. I-screw yensimbi engenasici kunye ne-carbon steel washer yinto eqhelekileyo, ikiti eqhutywa yindleko. Kwindawo epholileyo, kulungile. Kodwa yongeza nakuphi na ukufuma, kwaye wenze ibhetri. I-carbon steel washer iya kugqwala ngokuzincama, ihlala ikhenkceza indibano iqinile okanye ingcolise i-substrate. Ndihlala ndinyanzelisa ukuba iwasha ibe yinto enye, okanye ehlonipheke ngakumbi, kunesikrufu. Ukuba usebenzisa isikrufu se-aluminiyam kwi-aluminiyam, iwasha kufuneka ibe yi-aluminiyam okanye iplastiki. Kubonakala ngathi kucacile, kodwa kungxamiseko lokufumana iinxalenye, oku akunakwa.

Ukuma kuka-Handan Zitai kwindawo ebanzi yokuvelisa icebisa ukuba banobunzulu bekhonkco lokubonelela ukuze babonelele ngezixhobo zemathiriyeli ezihambelanayo. Ayikokwenza isikrufu nje; imalunga nokukhangela okanye ukuvelisa iwasha efanelekileyo ukuze uhambe nayo. Umzekelo, ukubonelela ngezikrufu ezinezikhonkwane ezine-zinc-plated washers, okanye i-A2 engenastainless ene-A2 iwasha engenastainless, njengeseti ehambelanayo. Oku kuhambelana kuthintela ukusilela okuninzi kwintsimi. Iwebhusayithi yabo, https://www.zitaifasteners.com, inokuchaza ezi zibini, eziluncedo ngakumbi kunekhathalogu yomda.

Eyona meko imbi kakhulu endayibonayo yayikwindibano yebalcony eselunxwemeni. Iintsimbi zealuminiyam bezincanyathiselwa nge... uqikelele ukuba, yintsimbi engatyiwayo izikrufu zokuzicofa ngeewasha. Kodwa iiwasha zazixabiso eliphantsi, intsimbi enezinki. Kwisithuba esingangonyaka, iiwasha zazisele zidleke zangamaqhuma, zingcolisa i-aluminiyam emnyama neluhlaza, kwaye imfezeko edibeneyo yayingasekho. Ukulungiswa kwaba yindawo epheleleyo kunye nezikrufu zentloko ye-aluminiyam. Iindleko zabasebenzi zinciphise ixabiso le-fastener eliphindwe kalikhulu.

Xa uBanjiweyo vs

Kukho ingxoxo enkulu apha: iwashi evalelweyo (ehlanganiswe ngaphambili) okanye izinto ezikhululekileyo? Kwindibano ephezulu, umthinjwa ungukumkani. Inciphisa ukubalwa kwenxalenye, isantya sofakelo, kwaye iqinisekisa ukuba iwasha ikhona. Kodwa iiwasha ezithinjiweyo zinokunciphisa iinketho zakho. Ukujikeleza ngexesha lokuqhuba ngamanye amaxesha kunokubangela ukuba iwasha yesitywina esibanjwayo ijike kwaye ikrazule, ngakumbi ukuba i-EPDM ethambileyo okanye irabha.

Iiwasha ezikhululekileyo zivumela ukuxuba kunye nokudibanisa kwaye kulula ukuzifumana ngokwahlukeneyo. Kodwa kwisiza sokwakha esinomoya okanye umgangatho womzi-mveliso oxakekileyo, oomatshini bokuhlamba bayawa, balityalwe, okanye bafakelelwe phezulu. Ndiye ndayama kwiinkqubo zokubanjwa kuyo nayiphi na into ebandakanya isitywina okanye xa iwasha inesimo esithile esisebenzayo (njengegxalaba eliphikisayo). Kwiiwasha eziqhelekileyo ezisicaba kwiindawo ezilawulwayo, ukukhululeka kunokuba kuhle kwaye kube bhetyebhetye ngakumbi.

Siye saqhuba ulingo kumgca wesixhobo sombane, sithelekisa ezi zimbini. Izikrufu zewasha ezibanjiweyo zine-0.3% yereyithi yempazamo yokudityaniswa (ubukhulu becala i-cross-threading). Iwasha ekhululekileyo kunye ne-screw combo ine-2.1% yezinga lemposiso, phantse yonke into ngenxa yeewasha ezingekhoyo okanye iiwasha ezibekwe kwicala elingalunganga le-joint. Isigqibo sehla kwindleko yokulungiswa kwebala xa kuthelekiswa nexabiso leyunithi ephezulu kakhulu yenkqubo yokubanjwa. Kweso sicelo, umthinjwa uphumelele.

Incoko yeTorque Wonke umntu Uyalibala

Ekugqibeleni, indlovu kwigumbi: itorque yokufaka. A self-tapping screw nge washer inefestile yetorque ekujoliswe kuyo. Iphantsi kakhulu, kwaye awuphuhlisi umthwalo owaneleyo we-clamp okanye wenze imicu ngokupheleleyo. Uphakamileyo kakhulu, kwaye uqhawula imicu okanye ucinezele i-washer, uyinike ingenamsebenzi. Uhlobo lwewasha luchaphazela kakhulu oku. Iwasha ye-Belleville eqinile iya kunika ubudlelwane be-torque-tension eyahluke kakhulu kune-washer ethambileyo.

Uninzi lwezikhokelo zokufakela zinika nje ixabiso letorque yesikrufu. Abafane benze ingxelo ngewasha. Ukuziqhelanisa, kufuneka uphuhlise ukuziva okanye, ngcono okwangoku, sebenzisa umqhubi olinganisiweyo kunye novavanyo kwiisampulu zesampulu. Senze iigeji ezilula zokuhamba / zokungahambeli kubasebenzi bethu bomgca-ukuba iwasha yayigungxulelwa kumgangatho othile wokubonwayo emva kokuqhuba, itorque yayinokwenzeka kuluhlu. Yayisisisombululo esisezantsi kwingxaki ephezulu.

Ibiyela umva kumbono ophambili: awuqini ngesikrufu. Ukhawuleza ngenkqubo. Iimpompo ze-screw kunye ne-clamps. Iwasha ilawula umthwalo, itywina, uxinzelelo, kwaye ngamanye amaxesha nokulungelelanisa. Ukuzifumana njengesibini esijongwayo, kumthengisi osiqondayo isicelo, esifana nezo zimiliselwe kwiindawo zokuvelisa ezisebenza kumashishini ahlukeneyo, asiyonkcukacha yokuthenga-yimfuno yobunjineli. Kwixesha elizayo xa ukhankanya izikrufu zokuzicofa ngeewasha, nqumama kwaye ucinge malunga nokuba yintoni kanye le kufuneka yenziwe yile nkqubo. Umtyholi, kunye nokuqina, kukwezo nkcukacha.