Labaran Masana'antu

Zafin Interpass muhimmin ma'auni ne na tsari a cikin walda mai wucewa da yawa. Yana shafar tsarin da kayan aikin walda kai tsaye. Ga ƙananan ƙarfe masu ƙarfe, dole ne ku kiyaye mafi girman zafin interpass don inganta tauri. Ga ƙarfe na aluminum, kuna buƙatar sarrafa zafin jiki mai tsauri don hana karkacewa. Lokacin da kuke yin aikin walda, ya kamata ku ɗauki ainihin ma'auni tare da alkalami mai zafi ko ma'aunin zafi na infrared. Dole ne ku yi rikodi da adana bayanai. Ya kamata a yanke takamaiman ƙimar zafin jiki ta hanyar ƙayyadaddun tsarin walda (WPS) ko cancantar tsarin walda (PQR).

Fashewar zafi ta walda babbar matsala ce da aka saba samu a walda. Suna samuwa cikin sauƙi a cikin ƙarfen carbon da bakin ƙarfe saboda karyewar abu, matsin lamba na walda da kuma rabuwar ƙazanta ta sulfur-phosphorus. Walda masu kunkuntar da zurfi suna da haɗarin tsagewa mafi girma. Shigar da zafi mai kyau, ƙirar ramuka da kayan walda na iya hana irin waɗannan tsagewa. Kula da tsagewar zafi mai kyau shine mabuɗin ingancin walda da amincin samarwa a masana'antar injiniyan teku da matsi na jiragen ruwa.

Wannan sashe (GB59661‑7.10) yana kusa dasarrafa nakasa ta waldaYi amfani da jerin haɗuwa masu kyau donsarrafa nakasa ta waldaWannan yana taimakawa rage raguwar ƙanƙantar ɓangaren ƙarshe. Don haɗin gwiwa na duwawu, T, da giciye, yi walda mai daidaitawa ta biyu idan za ku iya.sarrafa nakasa ta walda, fara liƙa gefen ramin mai zurfi a kan ramuka marasa daidaituwa. Don dogayen walda, yi amfani da walda ta baya ko ta mutum da yawa. Walda ta tsallake tana dakatar da tarin zafi na gida, kuma hakan yana taimakawasarrafa nakasa ta waldaA fara haɗa haɗin gwiwa da ake tsammanin raguwar su.sarrafa nakasa ta walda, zaku iya kimanta raguwa sannan kuyi amfani da damar juyewa ko raguwa. Kammala haɗa sassan da aka haɗa kafin haɗuwa ta ƙarshe. Don siffofi marasa kyau, daidaita yankin walda ko amfani da ƙarin dumama don daidaita zafi.sarrafa nakasa ta waldahanyoyin rage nakasa ba tare da ƙara matsin lamba na walda ko haɗarin tsagewa ba.

Yanayin walda kai tsaye yana shafar ingancin walda. Don walda mai sanda, saurin iska a yanayin walda bai kamata ya wuce m8/s ba; don walda mai kariya daga iskar gas, bai kamata ya wuce m2/s ba. Iska mai ƙarfi tana lalata garkuwar kariya, tana haifar da porosity. Yanayin walda kuma yana buƙatar danshi ƙasa da 90% da busassun saman. Ba a yarda da ruwan sama, ƙanƙara, ko dusar ƙanƙara ba. Ya kamata zafin yanayin walda ya kasance sama da -10°C. Kasa da 0°C, a kunna ƙarfen tushe zuwa aƙalla 20°C. Kasa da -10°C, ana buƙatar gwaji na musamman. Ƙananan zafin jiki yana sa ƙarfe ya yi karyewa kuma yana ƙara haɗarin fashewa na sanyi. Don haka kyakkyawan yanayin walda yana nufin iska mai kyau, danshi, da kuma sarrafa zafin jiki. Wannan yana tabbatar da ƙarfi na walda.

A cikin walda ta MIG/MAG, tsawon fitar da waya zai shafi ingancin walda kai tsaye.

A nan, za mu gabatar da matsalolin da suka shafi fitar da waya a takaice, sannan mu ba da wasu shawarwari kan yadda za a magance matsalolin.

12Cr1MoVG ƙarfe ne mai juriya ga zafi mai ƙarancin ƙarfe. Saboda yawan sinadarin chromium ɗinsa yana da yawa, wannan nau'in ƙarfe yana da ƙarfin zafi mai kyau da juriya ga gajiya a yanayin zafi tsakanin 500℃ da 550℃. An nuna sinadaran da halayen injiniya na ƙarfe 12Cr1MoVG a cikin Jadawali na 1 da 2 a ƙasa.

A fannin ƙera ƙarfen bakin ƙarfe, ingancin walda ba wai kawai game da ƙarfin injina ba ne yayin walda. Haka kuma game da ingancin sinadarai bayan walda. Kwanan nan, Sichuan Morrow Welding Development Co., Ltd. (Morrow Welding) ta fitar da jagorar fasaha game da "Heat Tint" a cikin walda na bakin ƙarfe. Wannan jagorar tana taimaka wa masu amfani su inganta.Juriyar lalata bakin karfeYana amfani da hanyoyi guda biyu tare: "kayan aikin walda masu inganci" da kuma "bayan an yi amfani da su a kimiyya."