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Daban-daban hanyoyin walda

Ana kuma kiran walƙar iska mai zafi. Matsewar iska ko iskar da ba ta da iska (yawanci nitrogen) ana dumama zafin da ake buƙata ta hanyar injin da ke cikin bindigar walda sannan a fesa saman saman robobi da tarkacen walda, ta yadda za a narke su biyun a haɗa su ƙarƙashin ƙaramin matsi. Filastik da ke kula da iskar oxygen (kamar polyphthalamide, da sauransu) yakamata suyi amfani da iskar gas a matsayin matsakaicin dumama, kuma sauran robobi na iya amfani da iska mai tacewa gabaɗaya. Ana amfani da wannan hanya sau da yawa don walda robobi irin su polyvinyl chloride, polyethylene, polypropylene, polyoxymethylene, polystyrene, da carbonate.

Kayan aikin walda na Xinfa yana da halaye masu inganci da ƙarancin farashi. Don cikakkun bayanai, da fatan za a ziyarci:Welding & Yanke Manufacturers - China Welding & Yanke masana'anta & Suppliers (xinfatools.com)

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Walda mai zafi yana amfani da dumama da matsa lamba don danna wayar karfe da wurin walda karfe tare. Ka'idar ita ce sanya karfen da ke cikin yankin waldawa ya zama filastik ta hanyar dumama da matsa lamba, kuma a lokaci guda lalata oxide Layer a kan ma'aunin walda na matsi, ta yadda mahaɗin da ke tsakanin matsin waldawar waya da ƙarfe ya kai ga karfin atomic gravitational. kewayo, ta haka ne ke haifar da jan hankali tsakanin atom da cimma manufar haɗin gwiwa.

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Waldawar farantin zafi tana ɗaukar tsarin zane-zanen faranti, kuma zafin injin farantin yana canjawa zuwa saman walda na sama da ƙananan sassan dumama filastik ta hanyar dumama wutar lantarki. An narke saman, sa'an nan kuma an cire injin farantin dumama da sauri. Bayan dumama na sama da na ƙasa, ana haɗa narkakkar saman, da ƙarfi, a haɗa su zuwa ɗaya. Dukan injin ɗin wani nau'i ne na firam, wanda ya ƙunshi faranti guda uku: samfuri na sama, ƙaramin samfuri, da samfuri mai zafi, kuma an sanye shi da ƙwanƙwasa mai zafi, na sama da ƙananan ƙwayoyin sanyi na filastik, kuma yanayin aikin shine sarrafa pneumatic.

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Ultrasonic karfe waldi yana amfani da high-mita vibration taguwar ruwa don watsa zuwa karfe biyu saman da za a welded. Ƙarƙashin matsi, saman biyu na ƙarfe suna shafa juna don samar da fusion tsakanin sassan kwayoyin halitta. Abubuwan amfaninsa suna da sauri, ceton makamashi, ƙarfin haɗin gwiwa, haɓaka mai kyau, babu tartsatsi, kuma kusa da sarrafa sanyi; rashin amfaninsa shine cewa sassan ƙarfe da aka welded ba za su iya zama mai kauri ba (gaba ɗaya ƙasa da 5mm ko daidai da 5mm), matsayin walda ba zai iya zama babba ba, kuma ana buƙatar matsa lamba.

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Laser walda wata ingantacciyar hanya ce ta walƙiya wacce ke amfani da katako mai ƙarfi da ƙarfi a matsayin tushen zafi. Yana daya daga cikin muhimman al'amurran da aikace-aikace na Laser kayan sarrafa fasaha. Gabaɗaya, ana amfani da katako mai ci gaba da laser don kammala haɗin kayan. Tsarinsa na ƙarfe na jiki yana kama da walƙiya na katako na lantarki, wato, tsarin canza makamashi yana cika ta hanyar tsarin "maɓalli-rami". Matsakaicin zafin jiki a cikin rami yana da kusan 2500 ° C, kuma ana canja wurin zafi daga bangon waje na babban dakin zafi don narke karfen da ke kewaye da rami. Maɓallin maɓalli yana cike da tururi mai zafi wanda aka haifar ta hanyar ci gaba da zubar da kayan bango a ƙarƙashin hasken wuta na katako.

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Ƙunƙarar ta ci gaba da shiga cikin maɓalli, kuma kayan da ke wajen ramin maɓalli na ci gaba da gudana. Yayin da katako ke motsawa, kullun maɓalli yana cikin kwanciyar hankali na gudana. Karfe da aka narkar da shi ya cika ratar da aka bari bayan an cire ramin maɓalli kuma ya takure, kuma an kafa walda.

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Brazing hanya ce ta walƙiya wacce narkakken filler (kayan brazing) tare da ƙaramin narkewa fiye da kayan aikin da za a haɗa ana mai zafi zuwa zafin jiki sama da wurin narkewa don sanya shi ruwa isa ya cika sarari tsakanin kayan aikin biyu ta capillary. aiki (wanda ake kira wetting), sa'an nan kuma an haɗa su biyu tare bayan ya ƙarfafa. A al'adance a Amurka, ana kiran yanayin zafi sama da 800°F (427°C) brazing (hard soldering), kuma yanayin zafin da ke ƙasa 800°F (427°C) ana kiransa soft soldering ( soft soldering).

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Walda da hannu hanya ce ta walda wacce ake yin ta da fitilar walda ta hannu, bindigar walda ko manne walda.

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Juriya walda tsari ne na masana'antu da fasaha wanda ke amfani da dumama don haɗa karafa ko wasu kayan zafin jiki kamar robobi. Hanya ce ta walƙiya ta hanyar yin amfani da matsa lamba ta hanyar lantarki bayan an haɗa kayan aikin da kuma yin amfani da zafin juriya da aka haifar ta hanyar wucewa ta hanyar sadarwa na haɗin gwiwa da yankin da ke kusa.

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Juya waldi hanya ce mai ƙarfi ta walƙiya wacce ke amfani da makamashin inji azaman makamashi. Yana amfani da zafin da ke haifar da gogayya tsakanin ƙarshen fuskokin kayan aikin don sa su isa yanayin filastik, sannan ana amfani da ƙirƙira saman don kammala walda.

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Welding Electroslag yana amfani da zafin juriya da ake samu ta hanyar wucewa ta yanzu a matsayin tushen zafi don narke karfen filler da kayan tushe, kuma bayan ƙarfafawa, haɗin gwiwa mai ƙarfi tsakanin ƙwayoyin ƙarfe ya kasance. A farkon walda, wayan walda da tsagi na walda ba su da ɗan gajeren kewayawa don fara baka, kuma ana ci gaba da ƙara ɗan ƙaramin ƙarfi mai ƙarfi. Ana amfani da zafi na baka don narke shi don samar da slag na ruwa. Lokacin da slag ya kai wani zurfi, saurin ciyar da wayar walda yana ƙaruwa, kuma ana rage ƙarfin wutar lantarki, ta yadda za a saka wayar walda a cikin tafkin slag, arc ɗin yana kashewa, kuma ana kunna tsarin waldawar electroslag. Electroslag waldi yafi hada da narkewa bututun ƙarfe electroslag waldi, ba-narke bututun ƙarfe electroslag waldi, waya electrode electroslag waldi, farantin lantarki electroslag waldi, da dai sauransu Its disadvantages ne cewa shigar zafi ne babba, da haɗin gwiwa zauna a high zafin jiki na dogon lokaci, da weld yana da sauƙin wuce gona da iri, ƙarfen weld ɗin simintin simintin simintin ƙwaƙƙwal ne, ƙaƙƙarfan tasirin tasirin ba shi da ƙasa, kuma welding gabaɗaya yana buƙatar daidaitawa da haɓakawa bayan waldawa.

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Maɗaukakiyar walda tana amfani da ƙaƙƙarfan zafi mai ƙarfi azaman kuzari. A lokacin waldi, da juriya zafi generated da high-mita halin yanzu a cikin workpiece da ake amfani da su zafi da surface na workpiece waldi yankin zuwa narkakkar ko kusan filastik jihar, sa'an nan (ko a'a) upsetting karfi da ake amfani da su cimma karfe bonding.

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Narke mai zafi shine nau'in haɗin da ake haɗawa ta hanyar dumama sassan zuwa wurin narkewar su (ruwa).

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Lokacin aikawa: Yuli-29-2024