Me yasa Kai -Skrus ɗin Hakowa ya gaza a Tsarin Karfe - da Yadda Ake Zaɓan Wanda Ya Dama (Kamfani{1}}Jagorar Mataki)

Zaɓin Ƙarfe Tsarin Ƙarfe: Me yasa Takaddun Takaddun Takaddun Ya Fassara da Yadda Ake Zaɓan Damarar Dama

Gabatarwa

Yawancin jagororin zaɓi suna mayar da hankali kan ƙayyadaddun bayanai. A hakikanin gaskiya, gazawar ayyukan tsarin karafa ba kasafai ne ke haifar da su ba saboda "girman da ba daidai ba" - yana haifar da rashin daidaiton aikin.

Daga masana'anta{0}} ra'ayoyin gefe da rahotannin aiki -, matsaloli uku sun kai sama da 80% na da'awar:
Screw ba zai iya shiga karfe cikin lokacin da aka sa ran ba
Lalata da wuri a cikin watanni 6-18
Karyewar kai yayin shigarwa

Wannan jagorar ya yanke cikin jargon don bayyana dalilin da yasa waɗannan gazawar ke faruwa kuma yana ba da tsarin fasaha don zaɓi na daidai.
1. Rashin Haƙowa Ba Game da Tsawon Ba - Ba Game da Ƙirar Tukwici ne

Yawancin masu siye suna ɗaukan dogon sukurori yana nufin aiki mai ƙarfi. Wannan ba daidai ba ne. Haƙiƙanin abin da ke faruwa shine ma'aunin joometry + matching taurin.
Mahimman abubuwan injiniya:
Taurin maki dole ne ya wuce kayan tushe ta ~3-5 HRC.
Maganin zafi mara kyau yana haifar da lalacewa kafin shiga ko zafi mai zafi (asarar taurin).
Gaskiyar labari:
Don purlins karfe 3-5mm, wurin rawar soja na #3 sau da yawa yana kokawa ƙarƙashin ci gaba da shigarwa, yayin da #4 yana ba da tsayayyen shigar azzakarinsa kuma yana rage nauyi mai ƙarfi.
Pro Tukwici: Wannan shine dalilin da ya sa ƙwararrun ƴan kwangila suka fi son "fiye da ƙayyadaddun bayanai" a cikin manyan ayyuka don rage haɗari.
2. Ƙarfin Ƙarfin Ƙarfin Ƙarfi da Ƙarfin Ƙarfafawa: Kasuwancin Hidden - Kashe
Rashin fahimta gama gari shine: "Mafi girman taurin=mafi kyawu."
A aikace, ma'auni shine mabuɗin.
Tauri mafi girma: Mafi hakowa, amma ƙananan ductility → mafi girman haɗarin ɗaukar kai.
Daidaiton Ma'auni na Masana'antu: Tauri mai mahimmanci (HRC 28-32) vs. Tukwici (HRC 45-52).
Idan dunƙule duka ya yi ƙarfi sosai, yana yin rawar jiki sosai amma ya kasa yayin ƙarawa. Idan yayi laushi, ba zai shiga ba.

3. Rashin Lalacewa: Kauri> Nau'in Rufi
Yawancin masu siye suna mayar da hankali kan sunaye masu launi (Ruspert, Dacromet, Geomet). Koyaya, bayanan filin suna nuna gazawar yawanci saboda ƙarancin kauri ko rashin kulawar tsari.

Feedback Field: Ayyukan rufi a yankunan bakin teku galibi suna kasawa ba saboda nau'in suturar da ba daidai ba, amma saboda kauri mai kauri yana ƙasa da ƙayyadaddun da ake buƙata.
4. Bimetal Screws: Ba Koyaushe Mafi kyawun Zaɓi ba
Halin kasuwa yana tura screws bimetal sosai, amma galibi ana amfani dasu.
Lokacin da Bimetal Ya Bukaci: Yanayin bakin teku, tsire-tsire masu sinadarai, ayyukan hasken rana (buƙatun rayuwa na shekaru 25).
Lokacin da BA BA: Tsarin ƙarfe na cikin gida, bushewar yanayin masana'antu.
Faɗakarwar Kuɗi: Sama da{0}}bayyana bimetal na iya ƙara farashin BOM ɗinku da 2-3x ba tare da fa'ida ta gaske a cikin busassun wurare ba.
5. Saurin Shigarwa Yana da Boyewar Kuɗi
Daga ra'ayoyin masu kwangila, ƙarancin hakowa suna haɓaka lokacin shigarwa da 20-40%.
Babban karfin juyi → saurin sa kayan aiki.
Sauya bit akai-akai.
A cikin manyan ayyuka, farashin aiki na jinkirin shigarwa sau da yawa ya wuce bambancin farashin sukurori da kansu.
6. Nazarin Harka na Kasawa: Tarkon "Ba daidai ba".

Wani aikin rufi a kudu maso gabashin Asiya ya yi amfani da sukurori mai lamba 2 don karfe 2.5mm.
Sakamakon:
Lokacin shigarwa ya ninka sau biyu.
12% screw failure rate.
Ana buƙatar sake yin aiki mai tsada.
Gyaran: Bayan canzawa zuwa wurin rawar soja na #3, ingantaccen shigarwa ya inganta da 35% kuma ƙimar gazawar ta ragu a ƙasa da 2%. Matsalar ba inganci ba ce - ba daidai ba ne takamaiman bayani.
[H2] 7. Dabarun Zaɓin Zaɓaɓɓen Aiki
Maimakon tambayar "Wane dunƙule ne mafi kyau?", yi amfani da wannan jerin abubuwan dubawa:
Kaurin Karfe:
Kasa da ko daidai da 2mm → #2 Maki
2–4mm → #3 Maki
4–6mm → #4 Maki
Muhalli:
Waje → Ruspert / Dacromet
Coastal → Bimetal
Bukatar Tsawon Rayuwa: Daidaita kauri zuwa shekarun sabis.

Tambayoyin da ake yawan yi

Q: Zan iya amfani da wani # 3 rawar soja batu ga 2mm karfe?
A: Ee, amma yana iya haifar da "tafiya" ko manyan ramuka. An inganta maki #2 don ƙaramin ma'aunin ma'auni.
Tambaya: Me yasa screw heads karye yayin shigarwa?
A: Yawancin lokaci ana haifar da wannan ta hanyar taurin gindin da ya wuce kima (rashin ductility) ko yin amfani da wurin rawar sojan da ake nufi da ƙarfe mai kauri akan abu na bakin ciki, ƙirƙirar juriya da yawa.

Kammalawa

Sau da yawa ana ɗaukar maɗauran ɗamara azaman ƙananan abubuwan haɗin ƙima, amma a cikin tsarin ƙarfe, suna shafar ingancin shigarwa kai tsaye da amincin dogon lokaci.
Zaɓin da ya dace ba shine zaɓin dunƙule "mafi ƙarfi" ba, amma mafi dacewa haɗin iyawar hakowa, ma'aunin taurin, da juriya na lalata.