A cikin yanayi mai wahala na masana'antun siminti, lif ɗin bokiti ba wai kawai sun dogara ne akan sarƙoƙi masu ƙarfi na zagaye ba, har ma da masu haɗin gwiwa masu mahimmanci waɗanda ke aiki azaman mahaɗin da ba makawa tsakanin sarkar da bokiti. Waɗannan masu haɗin, waɗanda galibi suna bin ƙa'idodin DIN 745 da DIN 5699, su ne gadoji na injiniya waɗanda ke canja wurin ƙarfin ɗagawa daga sarkar zuwa bokiti waɗanda ke ɗauke da kayan gogewa kamar clinker, limestone, da abinci mai ɗanye.
Shugabannin masana'antu kamar RUD, CICSA, da Heko sun daɗe suna ƙwarewa a waɗannan kayan aikin injiniya, suna amfani da hanyoyin sarrafa ƙarfe da kuma sarrafa zafi don tsawaita tsawon lokacin aiki a ƙarƙashin mawuyacin yanayi.
Tsarin Tsare-tsare da Aikace-aikace na yau da kullun
Manyan ƙa'idodi guda biyu masu haɗa siminti sun mamaye masana'antar siminti:
- Maƙallan DIN 745yana da jikin da aka ƙera na nau'in U tare da farantin nesa da haɗin goro, wanda aka ƙera don lif ɗin sarka na tsakiya mai ɗaukar nauyi na gabaɗaya. Waɗannan mahaɗan suna haɗa bokiti kai tsaye zuwa zaren sarka.
- Maƙallan DIN 5699suna ba da kyakkyawan tsari da ƙaramin tsari, wanda ke da dogayen sandunan zare waɗanda ke ba da damar sanya faranti na nesa tsakanin bokiti da sarkar. Wannan ƙirar tana ba da ingantaccen aminci ga aiki da kuma ingantaccen juriya ga karyewa da gajiya idan aka kwatanta da DIN 745, wanda hakan ya sa suka dace da tazara mai tsauri da kuma rage girman diamita na da'irar (PCD).
An tsara dukkan ƙa'idodi don yin aiki ba tare da matsala ba tare da zaren sarka da suka dace da DIN 764 da DIN 766.
Tsarin Zaɓin Kayan Aiki da Ƙirƙira
Sabanin rufewa ba kamar rufewa basarƙoƙi masu zagaye, masu haɗawayana da tsari mai buɗewa tare da fil mai cirewa, yana ƙirƙirar wurin tattara damuwa. Don ramawa ga wannan, ana samar da masu haɗin haɗi masu inganci ta hanyar yin ɗigon ɗigon daidai ta amfani da ƙarfe masu kyau. Kayan da aka saba amfani da su sun haɗa da ƙarfe mai zafi mai nauyin 45#, ƙarfe mai ƙarfe na Cr-Mo (chromium-molybdenum), da ƙarfe mai ƙarfe na Cr-Ni-Mo (chromium-nickel-molybdenum). Matsayin haɗin da ake buƙata yana ƙayyade takamaiman zaɓin ƙarfe mai ƙarfe. Yin ɗigon ɗigon yana daidaita kwararar hatsi tare da siffar mahaɗin, yana ƙara juriya ga gajiya sosai a ƙarƙashin ci gaba da matsin lamba da nauyin tasiri da ake fuskanta a ayyukan masana'antar siminti.
Mahimman Taurare da Kula da Inganci
Domin tabbatar da cewa masu haɗin sun sami juriyar lalacewa kamar yadda aka yi da hanyoyin haɗin da aka yi da carburized, manyan masana'antun masana'antu suna amfani da magungunan taurare na musamman na gida a wuraren haɗin gwiwa da sarkar. Ana iya rarraba su kamar haka:
- Masu haɗawa masu taurare/masu taurare: Masu taurare har zuwa ƙarfin taurin kayan aiki na kimanin 950–1100 N/mm², tare da taurarewar inductive a wuraren hulɗar haɗin gwiwa wanda ke samun taurin saman akalla 600 HV1 (55HRC).
- Haɗawa masu taurare/carburized: Don aikace-aikacen gogewa mafi tsanani, masana'antun kamar Pewag suna ba da ƙarin carburizing, suna samun taurin saman 750 HV1 ko sama da haka a wuraren hulɗar haɗin gwiwa.
Mahimman sigogin kula da inganci da manyan masana'antun suka ƙayyade sun haɗa da zurfin taurarewa (≥0.1×d), taurin saman (min. 600–750 HV1), da ƙarfin tabbatarwa da karyewa daidai ko fiye da na manyan sarƙoƙi da aka haɗa su da su. Gwaji mai tsauri na ingancin saman da sigogin maganin zafi yana tabbatar da juriyar gajiya a duk rukunin samarwa.
Kalubalen Aiki da Sauyawa
Duk da cewa an ƙera mahaɗi kuma an yi musu tauri sosai don su kusanci ƙarfin hanyoyin haɗin zagaye, sun kasance mafi rauni a tsarin saboda yanayinsu na buɗewa da maƙallan zare. Yankin hulɗa tsakanin mahaɗin da hanyar haɗin sarka yana ɗaya daga cikin wurare mafi damuwa a cikin tsarin lif, wanda ke sa shi ya zama mai saurin lalacewa, fashewa da gajiya, da sassauta goro a ƙarƙashin girgiza mai ci gaba.
Yanayin gazawar da aka saba gani sun haɗa da:
- Lalacewar saman: Kuraje a wuraren hulɗar haɗin gwiwa, yana rage tasirin yankin giciye
- Fashewar gajiya: Matsi mai zagaye yana haifar da fasa a wuraren da damuwa ke taruwa, wanda ke yaduwa akan lokaci har sai ya karye.
- Sassauta madauri: Sassauta goro ta hanyar girgiza, wanda galibi ana rage shi ta hanyar amfani da goro ko kuma wankin bazara.
Domin rage waɗannan haɗarin, dole ne a ɗaure hanyoyin haɗin zare da tsarin toshewa masu dacewa, kuma dole ne a sanya faranti na nesa daidai. Amfani da kayan haɗin kulle kai da juriya ga girgizar jiki da zagayowar zafin jiki na yau da kullun su ne mahimman abubuwan ƙira don tsawaita tsawon rai.
Kwarewar masana'antu ta nuna cewa yayin da sarkar kanta za ta iya samun tsawon rai na aiki wanda aka auna a cikin ɗaruruwan dubban tan na jigilar kaya, abubuwan haɗin bokiti da masu haɗawa na iya buƙatar maye gurbinsu da wuri. Wasu bayanai na filin sun nuna cewa abubuwan haɗin bokiti na iya buƙatar maye gurbinsu bayan kimanin tan 400,000 na kayan da aka sarrafa, wanda ke wakiltar wata dama mai mahimmanci ga masana'antu don tsara kulawa ta rigakafi da rage haɗarin rashin lokacin hutu ba tare da shiri ba.
Masu haɗin sarkar haɗin zagayeAn ƙera su ne don yin sulhu - a buɗe a cikin ƙira amma ana buƙatar su jure irin wannan gogayya mai ƙarfi, lodi mai ƙarfi, da yanayin da ke lalata haɗin da suka haɗa. Ta hanyar ƙirƙirar daidaito, zaɓin kayan da aka inganta, da kuma taurare akwati (carburizing) a wuraren haɗin gwiwa, manyan masana'antun kamar RUD, CICSA, da Heko masu haɗin samar da kayayyaki waɗanda ke ba da ingantaccen aiki a ƙarƙashin buƙatun lif ɗin bokiti na siminti masu ƙarfi da ci gaba. Dubawa na yau da kullun don lalacewa a yankunan haɗin gwiwa, tabbatar da tsaron maƙallin, da maye gurbin kan lokaci bisa ga adadin da aka kawo su muhimman ayyuka ne don hana mummunan lalacewa da kuma haɓaka lokacin aiki na tsarin.
Lokacin Saƙo: Mayu-24-2026
