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Dangane da wuraren narkewa daban-daban na solder, brazing za a iya raba zuwa taushi soldering da wuya soldering.

Sayarwa

Soft soldering: wurin narkewa na solder don laushi mai laushi ya yi ƙasa da 450 ° C, kuma ƙarfin haɗin gwiwa yana ƙasa (kasa da 70 MPa).

Ana amfani da laushi mai laushi don walda na na'urori masu ɗaukar nauyi, iska da ruwa a cikin lantarki da masana'antun abinci.Welding tin tare da gwangwanin gubar dalma kamar yadda aka fi amfani da karfen filler.Solder mai laushi gabaɗaya yana buƙatar amfani da juzu'i don cire fim ɗin oxide da haɓaka jigon solder.Akwai nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan siyarwa, kuma ana amfani da maganin rosin barasa sau da yawa don siyarwa a masana'antar lantarki.Ragowar wannan juzu'i bayan walda ba shi da wani tasiri mai lalacewa akan aikin aikin, wanda ake kira juzu'in mara lalacewa.Juyin da ake amfani da shi don walda jan ƙarfe, ƙarfe da sauran kayan yana ƙunshi zinc chloride, ammonium chloride da vaseline.Lokacin welding aluminum, fluoride da fluoroborate ana amfani da su azaman brazing fluxes, kuma hydrochloric acid da zinc chloride ana amfani da su azaman brazing fluxes.Ragowar waɗannan magudanar ruwa bayan waldawa suna da lalacewa, ana kiran su da lalata, kuma dole ne a tsaftace su bayan walda.

Brazing

Brazing: Matsayin narkewar ƙarfe mai cike da brazing ya fi 450 ° C, kuma ƙarfin haɗin gwiwa ya fi girma (fiye da 200 MPa).

Ƙwayoyin haɗin gwiwa suna da ƙarfi mai ƙarfi, kuma wasu na iya aiki a babban zafin jiki.Akwai nau'ikan nau'ikan nau'ikan karafa na brazing, da aluminum, azurfa, jan ƙarfe, manganese da ƙarfe na tushen brazing na nickel sune aka fi amfani dasu.Aluminum tushe filler karfe yawanci amfani da brazing kayayyakin aluminum.Masu siyar da tushen azurfa da tagulla galibi ana amfani da su don sarrafa sassan jan karfe da ƙarfe.Masu siyar da tushen manganese da nickel galibi ana amfani da su don walda bakin karfe, ƙarfe mai jure zafi da sassa na superalloy waɗanda ke aiki a yanayin zafi.Tushen Palladium, tushen zirconium da masu siyar da tushen titanium galibi ana amfani da su don walda karafa irin su beryllium, titanium, zirconium, graphite da tukwane.Lokacin zabar ƙarfe mai cikawa, halayen ƙarfe na tushe da buƙatun aikin haɗin gwiwa yakamata a yi la'akari da su.Brazing flux yawanci yana kunshe da chlorides da fluorides na alkali karafa da karafa masu nauyi, ko borax, boric acid, fluoroborate, da sauransu, wadanda za'a iya yin su zuwa foda, manna da ruwa.Hakanan ana saka lithium, boron da phosphorus a cikin wasu masu siyar da su don haɓaka ikon cire fim ɗin oxide da jika.Tsaftace ragowar motsi bayan waldawa da ruwan dumi, citric acid ko oxalic acid.

Lura: Tushen tuntuɓar ƙarfe na tushe yakamata ya zama mai tsabta, don haka yakamata a yi amfani da juzu'in.Ayyukan brazing flux shine don cire oxides da ƙazantar mai akan saman ƙarfen tushe da ƙarfe mai filler, kare yanayin tuntuɓar ƙarfen filler da ƙarfen tushe daga oxidation, da haɓaka wettability da ruwa na capillary na ƙarfe filler.Matsakaicin narkewar juzu'in zai zama ƙasa da na mai siyar, kuma lalata ragowar juzu'i akan ƙarfe tushe da haɗin gwiwa zai zama ƙasa.Juyin da aka saba amfani da shi don siyar da laushi shine rosin ko zinc chloride bayani, kuma ruwan da aka saba amfani dashi don brazing shine cakuda borax, boric acid da alkaline fluoride.

Aikace-aikace da gyara fasalin da watsa shirye-shirye

Brazing bai dace da walda na tsarin ƙarfe na gabaɗaya da sassa masu nauyi da ƙarfi ba.An yafi amfani da Manufacturing ainihin kida, lantarki aka gyara, dissimilar karfe aka gyara da kuma hadaddun bakin ciki farantin Tsarin, kamar sanwici aka gyara, saƙar zuma Tsarin, da dai sauransu Har ila yau, ana amfani da brazing daban-daban dissimilar waya da siminti carbide kayayyakin aiki.A lokacin brazing, bayan da lamba surface na brazed workpiece da aka tsabtace, an tattara a cikin nau'i na zoba, da filler karfe da aka sanya kusa da haɗin gwiwa rata ko kai tsaye a cikin hadin gwiwa rata.Lokacin da workpiece da solder suna mai tsanani zuwa wani zafin jiki dan kadan mafi girma fiye da narkewa zafin jiki na solder, solder zai narke da jiƙa surface na weldment.Ƙarfe mai cike da ruwa zai gudana kuma ya yada tare da kabu tare da taimakon aikin capillary.Don haka, karfen da aka yi da karfe da karfen filler suna narkar da su a shiga cikin juna don samar da abin da ya dace.Bayan daɗaɗɗen, an kafa haɗin gwiwar brazed.

An yi amfani da brazing sosai a cikin injiniyoyi, lantarki, kayan aiki, rediyo da sauran sassan.Kayan aikin Carbide, hakowa, firam ɗin kekuna, masu musayar zafi, magudanar ruwa da kwantena daban-daban;A cikin kera na'urorin lantarki na lantarki, bututun lantarki da na'urorin injin lantarki, brazing ita ce hanyar haɗin kai kaɗai.

Siffofin brazing:

Dabarun niƙa lu'u-lu'u mai ƙyalli

Dabarun niƙa lu'u-lu'u mai ƙyalli

(1) The brazing dumama zafin jiki ne low, da hadin gwiwa ne santsi da lebur, da canji na microstructure da inji Properties ne kananan, nakasawa ne kananan, da workpiece size ne daidai.

(2) Yana iya walda dissimilar karafa da kayan ba tare da tsananin hani a kan kauri bambanci na workpiece.

(3) Wasu hanyoyin brazing na iya walda walda da haɗin gwiwa da yawa a lokaci guda, tare da yawan aiki.

(4) Brazing kayan aiki ne mai sauki da kuma samar da zuba jari ne low.

(5) Ƙarfin haɗin gwiwa yana da ƙasa, juriya na zafi ba shi da kyau, kuma abubuwan da ake bukata don tsaftacewa kafin waldawa suna da tsanani, kuma farashin mai sayarwa yana da tsada.