Ka'idoji na asali don zaɓin kayan aikin walda

Yi la'akari da kaddarorin jiki, kaddarorin injiniya da abun da ke tattare da sinadaran walda

1. Tsarin karfe waldi, gabaɗaya la'akari da ka'idar daidaitaccen ƙarfi, zaɓi don biyan buƙatun kayan aikin injiniya na kayan haɗin gwiwa.

2. Domin low carbon karfe da low gami karfe tsakanin waldi hadin gwiwa na dissimilar karfe, kullum zabi m waldi consumables tare da ƙananan ƙarfin sa na karfe.

3. Don karfe mai jure zafi da walƙiya bakin karfe, ban da la'akari da ƙarfin, amma kuma la'akari da babban abun da ke tattare da sinadarai na ƙarfe na walda da sinadarai na kayan mahaifa kusa.

4. Lokacin da sinadaran abun da ke ciki na iyaye abu, kamar carbon ko sulfur, phosphorus da sauran cutarwa impurities ne high, ya kamata a zabi wani karfi crack juriya walda consumables.Irin su ƙananan nau'in hydrogen nau'in walda masu amfani.

Yi la'akari da yanayin aiki na walda da amfani da aikin

1. Sassan welded a cikin yanayin haɓaka mai ƙarfi da nauyin tasiri, ban da buƙatun don tabbatar da ƙarfin ƙarfin ƙarfi, ƙarfin samar da ƙarfi, ƙarfin tasiri, filastik sune buƙatu mafi girma.A wannan lokacin ya kamata a zaba tare da ƙananan kayan walda na hydrogen.

2. Welded sassa a cikin m kafofin watsa labarai, dole ne a bambanta daga kafofin watsa labarai irin, maida hankali, aiki zafin jiki da kuma irin lalata (general lalata, intergranular lalata, danniya lalata, da dai sauransu), don zabar daidai bakin karfe waldi consumables.

3. Lokacin da weld aiki a karkashin lalacewa yanayi, shi wajibi ne don rarrabe tsakanin general lalacewa ko tasiri lalacewa, intermetallic lalacewa ko abrasive lalacewa, sa a dakin da zazzabi ko sa a high zafin jiki, da dai sauransu. , domin zabar abin da ake amfani da kayan walda da ya dace.

4. A cikin ƙananan zafin jiki ko ƙananan sassa na walƙiya, ya kamata a zaɓa don tabbatar da cewa ƙananan zafin jiki ko yawan zafin jiki na kayan aikin walda.

Yi la'akari da ƙayyadaddun ƙayyadaddun abubuwa da sifofi na sassan welded, nau'in haɗin gwiwa mai walda, da dai sauransu.

1. Siffa mai rikitarwa ko babban kauri na sassan da aka haɗa, saboda ƙarfe na waldawa a cikin kwantar da hankali na damuwa na ciki wanda aka haifar da babban, mai sauƙi don samar da fasa.Sabili da haka, ya zama dole a yi amfani da kayan aikin walda tare da juriya mai kyau, irin su sandar walda mai ƙarancin hydrogen, sandar walda mai ƙarfi mai ƙarfi.

2. Don wasu gidajen abinci tare da ƙananan bevels, ko haɗin gwiwa tare da tsauraran ikon shigar da tushen, ya kamata a yi amfani da kayan aikin walda tare da zurfin haɗuwa ko shigar.

3. Saboda ƙuntatawa na wasu sassan walda da wuya a tsaftacewa, ya kamata a yi la'akari da yin amfani da tsatsa, oxidation da mai dauki ba kula da kayan walda ba, kamar sandar walda na acid, don kada ya haifar da lahani kamar porosity.

Yi la'akari da matsayi na sararin samaniya na weld

Wasu kayan walda sun dace da walda a wani matsayi ne kawai, wasu wuraren ba su da tasiri a lokacin walda, wasu kayan walda suna iya walda a wurare daban-daban, ya kamata a yi la'akari da halayen matsayin walda lokacin zabar.

Yi la'akari da yanayin aikin walda, yanayin aiki

1. Babu DC waldi inji lokatai, ya kamata amfani da AC da DC dual-amfani waldi abu.

2. Wasu karfe (kamar pearlite zafi-resistant karfe) bukatar da za a post-weld danniya taimako zafi magani, amma ta kayan aiki yanayi ko nasa tsarin constraints kuma ba za a iya za'ayi, ya kamata a zaba tare da tushe karfe sinadaran abun da ke ciki na daban-daban kayan amfani da walda (kamar austenitic bakin karfe walda kayan amfani), za a iya kebe daga post-weld zafi magani.

3. Ya kamata a dogara ne akan yanayin wurin ginin, kamar ayyukan filin, yanayin aikin walda, da dai sauransu zuwa zaɓi na ma'ana na kayan aikin walda.

4. A wuraren da za a iya amfani da na'urorin walda na acidic da alkaline, yakamata a yi amfani da na'urorin walda na acidic gwargwadon yuwuwar la'akari da manyan buƙatun na'urorin walda na alkaline don dabarun aiki da shirye-shiryen gini.

Yi la'akari da tattalin arziki na walda

1. Gwada yin amfani da kayan aikin walda masu tsada, in dai an tabbatar da aikin yin amfani.

2. Za'a iya amfani da kayan aikin walda daban-daban don waldawa na farko da na sakandare tare da buƙatun aiki daban-daban, kuma kada ku bi cikakken aikin kayan aikin walda ɗaya ɗaya.

Yi la'akari da ingancin walda

Don tsarin da ke da babban nauyin aikin walda, ya kamata a yi amfani da kayan aikin walda masu inganci gwargwadon yiwuwa idan akwai su, kamar waya walda, sandar walda ta foda, sandar walda mai inganci mai inganci, da sauransu.

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