MouldZaɓin abu muhimmin haɗi ne a cikin dukkan tsarin yin mold.
Zaɓin kayan mold yana buƙatar cika ƙa'idodi uku. Mold ɗin ya cika buƙatun aiki kamar juriyar lalacewa da tauri, mold ɗin ya cika buƙatun tsari, kuma mold ɗin ya kamata ya cika buƙatun tattalin arziki.
(1)moldya cika buƙatun yanayin aiki
1. Juriyar lalacewa
Idan aka yi amfani da robar roba a cikin ramin mold, yana gudana yana zamewa a saman ramin, yana haifar da gogayya mai tsanani tsakanin saman ramin da kuma wurin da babu komai, wanda hakan ke haifar da gazawar mold saboda lalacewa. Saboda haka, juriyar lalacewa na kayan yana ɗaya daga cikin mahimman halaye na mold.
Tauri shine babban abin da ke shafar juriyar lalacewa. Gabaɗaya, yawan taurin sassan mold, ƙarancin lalacewa da kuma juriyar lalacewa. Bugu da ƙari, juriyar lalacewa kuma tana da alaƙa da nau'in, adadi, siffa, girma da rarrabawar carbide a cikin kayan.
2. Ƙarfin tauri
Yawancin yanayin aiki namoldsuna da muni sosai, kuma wasu galibi suna ɗauke da babban nauyin tasiri, wanda ke haifar da karyewar karyewa. Domin hana karyewar karyewar karyewar sassan mold ba zato ba tsammani yayin aiki, mold ɗin dole ne ya kasance yana da ƙarfi da tauri sosai.
Taurin mold ɗin ya dogara ne akan yawan sinadarin carbon, girman hatsi da kuma yanayin tsari na kayan.
3. Gajiya da karyewar ƙashi
A lokacin aikin mold, karyewar gajiya sau da yawa ana haifar da ita ne a ƙarƙashin aikin damuwa na dogon lokaci. Siffofinta sun haɗa da karyewar gajiya mai ƙarfi da yawa, karyewar gajiya mai ƙarfi, karyewar gajiya ta hanyar taɓawa da lanƙwasa gajiya.
Aikin karyewar gajiya namoldgalibi ya dogara ne akan ƙarfinsa, taurinsa, taurinsa, da kuma abubuwan da ke cikin kayan.
4. Babban aikin zafin jiki
Idan zafin aiki na mold ya yi yawa, tauri da ƙarfi za su ragu, wanda hakan ke haifar da lalacewa da wuri ga mold ko nakasa ta filastik. Saboda haka, kayan mold ɗin ya kamata su sami kwanciyar hankali mai ƙarfi don tabbatar da cewa mold ɗin yana da ƙarfi da ƙarfi sosai a yanayin zafi.
5. Juriyar gajiya da zafi da sanyi
Wasu ƙwayoyin halitta suna cikin yanayi na dumama da sanyaya akai-akai yayin aikin, wanda ke haifar da tashin hankali, matsin lamba da damuwa a saman ramin, yana haifar da fashewa da barewa a saman, ƙara gogayya, hana lalacewar filastik, da rage daidaiton girma, wanda ke haifar da gazawar ƙwayoyin halitta. Gajiya mai zafi da sanyi yana ɗaya daga cikin manyan nau'ikan gazawar ƙwayoyin halitta masu zafi, kuma waɗannan ƙwayoyin halitta ya kamata su sami juriya mai ƙarfi ga gajiyar sanyi da zafi.
6. Juriyar tsatsa
Lokacin da wasumoldsKamar yadda molds na filastik ke aiki, saboda kasancewar chlorine, fluorine da sauran abubuwa a cikin filastik, iskar gas mai ƙarfi kamar HCI da HF suna ruɓewa bayan dumamawa, wanda ke lalata saman mold, yana ƙara ƙaiƙayin samansa, kuma yana ƙara lalacewar lalacewa.
(2) Modulation ya cika buƙatun aikin aiwatarwa
Gabaɗaya, ƙera molds dole ne ya bi hanyoyi da dama kamar ƙirƙira, yankewa, da kuma maganin zafi. Domin tabbatar da ingancin ƙera mold ɗin da kuma rage farashin samarwa, kayan ya kamata su kasance masu kyau wajen yin amfani da mold, iya aiki, tauri, tauri da kuma niƙa; ya kamata kuma ya kasance yana da ƙaramin iskar oxygen, rage ƙarfin aiki da kuma kashewa. Yana da yanayin canzawa da tsagewa.
1. Ƙarfin ƙirƙira
Yana da ƙarancin juriya ga nakasa mai zafi, kyakkyawan ƙarfin lantarki, kewayon zafin jiki mai faɗi, ƙarancin yanayin ƙirƙirar fashewa da fashewar sanyi da kuma hazo na hanyar sadarwa.
2. Fasahar rage zafi
Yanayin zafin da ke kewaye da spheroidizing yana da faɗi, taurin annealing yana da ƙasa kuma bambancin yana da ƙanƙanta, kuma saurin spheroidizing yana da yawa.
3. Ingantaccen aiki
Yawan yankewa yana da yawa, asarar kayan aiki ba ta da yawa, kuma rashin kyawun saman da aka yi da injin yana da ƙasa.
4. Ra'ayin Oxidation da decarburization
Idan aka dumama shi a babban zafin jiki, yana da juriya mai kyau ga iskar shaka, rage jinkirin cire carbon, rashin jin daɗin dumama, da kuma ƙarancin sha'awar yin pitting.
5. Taurarewa
Yana da taurin saman iri ɗaya da kuma babban ƙarfi bayan an kashe shi.
6. Taurarewa
Bayan an kashe, ana iya samun wani Layer mai tauri mai zurfi, wanda za a iya taurare shi ta hanyar amfani da wani abu mai laushi na kashewa.
7. Kashe yanayin fashewar nakasa
Sauyin ƙarar kashe wuta na gargajiya ƙarami ne, siffar ta karkace, karkacewar ba ta da yawa, kuma yanayin lalacewar da ba ta dace ba yana da ƙasa. Kashe wuta na gargajiya yana da ƙarancin saurin fashewa kuma ba ya jin daɗin yanayin zafi da siffar aikin.
8. Ƙarfin niƙa
Asarar da aka samu daga tayar niƙa ƙarami ne, iyaka ta niƙa ba tare da ƙonewa ba tana da yawa, kuma ba ta da alaƙa da ingancin tayar niƙa da yanayin sanyaya, kuma ba abu ne mai sauƙi ba a haifar da tsagewa da fasa niƙa.
(3) Tsarin ya cika buƙatun tattalin arziki
A cikin zaɓinmoldkayan aiki, dole ne a yi la'akari da ƙa'idar tattalin arziki don rage farashin masana'antu gwargwadon iko. Saboda haka, a ƙarƙashin manufar gamsar da aiki, da farko zaɓi mafi ƙarancin farashi, idan za ku iya amfani da ƙarfen carbon, ba kwa buƙatar ƙarfen ƙarfe, kuma idan za ku iya amfani da kayan cikin gida, ba kwa buƙatar kayan da aka shigo da su daga ƙasashen waje.
Bugu da ƙari, ya kamata a yi la'akari da yanayin samarwa da wadata a kasuwa yayin zaɓar kayan aiki. Ya kamata a yi la'akari da matakan ƙarfe da aka zaɓa kaɗan kuma a tattara su gwargwadon iyawa kuma su kasance masu sauƙin siye.