Yana ɗayan tambayoyin gama gari a cikin DIY da ƙirƙira haske - kuma amsar gaskiya ita ce: ya dogara. Ƙarfe mai ɗaukar kai a cikin ƙaramin takarda na bakin ciki zai iya ɗaukar lbs 50-150, yayin da girman girman da aka kora a cikin katako zai iya ɗaukar fam ɗari da yawa. Babu lamba ɗaya, saboda ikon riƙewar dunƙule an yanke shawarar ta aƙalla masu canji shida suna aiki tare.
Wannan ba yana nufin dole ne ku yi hasashe ba. Wannan jagorar yana bayanin abin da ke ƙayyade girman nauyin mai taɓin kansa zai iya ɗauka, yana ba da ƙimar ƙima ga al'amuran gama gari, kuma yana nuna muku yadda ake samun matsakaicin aiki daga kowane dunƙule.
Gajeren Amsa
A cikin ayyukan yau da kullun, aikace-aikacen da ba na tsari ba, a nan akwai jeri na tunani:
- A cikin bakin ciki karfe (18-22 ma'auni): dunƙule tapping kai na #10 yawanci yana riƙe 80-150 lbs a cikin shear, tare da ƙananan ƙima don fitar da kai tsaye.
- A cikin itace mai laushi (misali, katako na SPF): dunƙule # 8-#10 tare da inci 1.5-2 na haɗin zaren yawanci yana riƙe 100-250 lbs a cirewa.
- A cikin katako: dunƙule iri ɗaya na iya riƙewa 200-500+ lbs, saboda ƙarfin janyewa yana tasowa tare da yawan itace.
- A cikin kankare ko masonry: masu taɓin kai ba su ne madaidaicin maɗauri ba - yi amfani da anchors da aka ƙididdige ma'aunin a maimakon haka.
Waɗannan ƙididdiga ne na ainihin-duniya, ba ƙimar ƙira ba. Don wani abu na tsari, aminci-mahimmanci, ko sama, yi amfani da teburin ƙira da aka buga da ingantaccen yanayin aminci - ƙari akan wannan ƙasa.
Menene Screw Taɓa Kai?
A dunƙule kai tapping (sau da yawa kawai ana kiransa maɗaurin kai) yana yanke ko ƙirƙirar zaren kansa yayin da ake tura shi cikin kayan, don haka ba a buƙatar rami da aka riga aka taɓa. Akwai manyan iyalai guda biyu:
- Zare-ƙira kai tappers - matsar da kayan don samar da zaren. Mafi kyau ga kayan laushi kamar filastik, aluminum, da ƙarfe na bakin ciki.
- Zare-yanke kai tapper - suna da yankan gefuna waɗanda ke cire kayan, suna samar da zaren mai tsabta a cikin abubuwa masu wuya kamar karfe.
- Kai-hakowa (TEK) sukurori - rukuni na uku tare da hadadden filin wasan motsa jiki wanda ke yin rami na matukin jirgi a cikin karfe, yana kawar da matakin hakowa daban.
Duk waɗannan suna da ilimin kimiyya iri ɗaya: ikon riƙewa ya fito ne daga zaren da ke cizon kayan tushe, ba daga jikin dunƙule ba. Shi ya sa "nawa nauyi nawa mai ɗaurin kai zai iya riƙe?" hakika tambaya ce game da hadin gwiwa - dunƙule, abu, da shigarwa hade.
Me ke tantance Nawa Nauyin Nauyin Mai Taɓa Kansa Zai Iya Rike?
Abubuwa shida sun mamaye:
1. Diamita na dunƙule (ma'auni)
Girman diamita = ƙarin wurin tuntuɓar zaren = ƙarin ikon riƙewa. A dunƙule #12 zai akai-akai fiye da #8 na tsayi da abu iri ɗaya.
2. Tsawon aikin zaren
Wannan shi ne abu mafi mahimmanci guda ɗaya. Ƙarfin riƙewa yana ƙaruwa kusan daidai da tsayin zaren da aka binne a cikin kayan karɓa. A cikin itace, ƙarfin janyewa yawanci ana ƙididdige shi kowane inch na zaren shigar ciki - ninka shigar cikin ninki kusan ninki biyu nauyin da haɗin gwiwa zai iya ɗauka, har zuwa inda screw shank da kansa ya zama mahada mai rauni.
3. Kayan tushe da yawa
- Itace: Ƙarfin janyewa yana tasowa tare da yawa - kusan daidai da takamaiman murabba'in nauyi. Screw a cikin farin itacen oak (SG ≈ 0.65) yana riƙe sau da yawa fiye da dunƙule iri ɗaya a cikin Pine mara nauyi (SG ≈ 0.35).
- Karfe: cirewa ya dogara sosai akan kauri. Ƙarfe mai kauri yana ba da zaren ƙarin cizo a ciki.
- Filastik: robobi masu laushi suna ba da ikon riƙe ƙasa da yawa kuma suna da saurin cire zaren.
4. Sukudi abu da sa
Yawancin masu tada kai suna taurare carbon karfe ko bakin karfe. Ƙarfin jujjuyawar nasa yana da mahimmanci kawai da zarar zaren sun daina kasancewa mahaɗin rauni - watau, a cikin ɗimbin ɗimbin yawa tare da haɗin gwiwa mai zurfi.
5. Pilot rami
Ramin matukin jirgi daidai daidai yana barin zaren yanke tsafta da cikakke. Ƙananan rami yana haifar da dunƙule don yaƙar kayan (kuma yana iya ɗaukar dunƙule ko tsaga itace); rami mai girma ya bar zaren ba tare da kusan komai ba.
6. Hanyar kaya
Fasteners sun fi ƙarfi a ciki karfi (Lokaci da aka yi amfani da shi a fadin dunƙule) fiye da ciki ja-fita (Lokaci yana jan dunƙule kai tsaye daga cikin kayan). Haɗin gwiwa wanda ya gaza gwajin ja na iya ɗaukar nauyi mai yawa idan an ɗora shi a gefe.
Fitar-Fitar vs. Shear: Hanyoyi Biyu da Suke Fassara
Fahimtar hanyoyin gazawar guda biyu yana gaya muku wace lamba za ku damu da ita:
| Hanyar Load | Yanayin gazawa | Ƙarfin Dangi Na Musamman |
|---|---|---|
| Janye kai tsaye | Zaren tsiri / cirewa | Ƙananan - raunin rauni shine abu |
| Load a fadin dunƙule | Rashin ƙarfi | Mafi girma - dunƙule shank dole ne ya karye |
A cikin ƙaramin takarda na bakin ciki, gazawar da aka saba yi ita ce cirewa (zaren tsige ramin) ko ja-gora (kai yana hawaye ta cikin takardar). A cikin itace, juriya na janyewa shine ƙayyadaddun abu, kuma ka'idodin masana'antu suna nuna cewa: ƙirar ƙirar NDS don cirewar katakon itace shine W = 2850 × G² × D (lbs a kowace inch na shigar ciki, inda G shine takamaiman ƙarfin itace kuma D shine diamita na zaren dunƙule a cikin inci). Siffar kayan aikin dajin USDA na ƙarshe shine F = 15700 × G² × D × L.
Don sanya wannan a cikin sharuddan aiki: dunƙule #10 (D ≈ 0.19") wanda aka kora inci 2 cikin katako na SPF (G ≈ 0.42) yana da juriya na ƙarshe na janyewa a cikin unguwar 400 lbs - yayin da wannan dunƙule a cikin farin itacen oak (G ≈ 0.65) fiye da ninki biyu.
Kimanin Ƙarfin Ƙarfi
| Roƙo | Suruku | Nau'in Load a kowane Screw | Bayanan kula |
|---|---|---|---|
| Sheet karfe 18-22 ma'auni | #10 danna kai | 80-150 lbs (tsaye) | Fitar da ƙasa; yi amfani da wurin hakowa kai |
| Ƙarfe mai haske (12-16 ga) | #8-#12 danna kai | 150-300+ lbs | Tabbatar da adawa da jadawalin haɗin da aka buga |
| Softwood, 1.5-2" haɗin gwiwa | #8-#10 | 100-250 lbs (janyewa) | Tashi da zurfi da yawa |
| Hardwood, 1.5-2" haɗin gwiwa | #8-#10 | 200-500+ lbs (janyewa) | Nau'in nau'i mai yawa suna riƙe da yawa |
| Karfe-zuwa-karfe, ma'auni mai nauyi | 1/4" kai tapping | 1,000+ lbs mai yiwuwa (shear) | Gine-ginen gine-gine suna buƙatar ƙimar ƙira |
Ɗauki waɗannan azaman nassoshin bene na kanti na gaskiya. Ƙirar ƙira da aka buga don ƙirar ƙarfe (a kowace AISI S100 / rahoton kimantawa ICC-ES) yawanci amfani da yanayin aminci na kusan 3.0 don gwada ƙimar ƙarshe - ma'ana halatta lodi ya yi nisa ƙasa da abin da maɗaurin ya tsira a gwajin gwaji. Lokacin da nauyin nauyi ya shafi, yi amfani da teburin zane, ba lambobi na ƙarshe ba.
Yadda Ake Girman Abin da Mai Taɗa Kai Zai Riƙe
- Yi amfani da mafi girman diamita mai amfani. Lokacin da shakka tsakanin masu girma dabam biyu, tashi sama.
- Haɓaka haɗin zaren. Ya kamata dunƙule ya shiga cikin kayan da aka karɓa tare da isasshen tsayin zaren - don haɗin ƙarfe, ma'anar ya kamata ta fito ta hanyar shiga aƙalla zaren biyu ko uku fiye da gefen nesa.
- Hana ramin matukin jirgi na dama. Don itace, rami mai matukin jirgi yana hana rarrabuwa; don karfe, yi amfani da diamita na maƙerin da aka ba da shawarar rami don zaren ya ciji daidai.
- Zaɓi nau'in da ya dace don kayan. Zare-yanke don karfe, zaren-forming don kayan laushi, abubuwan hakowa TEK da kai lokacin da kake son tsallake matakin matukin jirgi.
- Kar a danne. Cire rami yana lalata yawancin ikon riƙewa. Tsaya lokacin da kan ya zauna da ƙarfi.
- Yi amfani da wanki don abu mai bakin ciki. Mai wanki yana shimfiɗa nauyin kai kuma yana hana cirewa cikin ƙarfe mai laushi.
- Ƙara ƙarin masu ɗaure. Tazarar sukurori da yawa a kan haɗin gwiwa yana haɓaka iya aiki - kuma yana ba da sakewa idan dunƙule ɗaya ya yi rauni fiye da yadda ake tsammani.
Lokacin Mai Taɓa Kai Ba Amsar Da Ya dace ba
Masu tada kai suna da iyaka. Kada ku yi amfani da su don:
- Haɗin gine-gine ko injiniyoyi - Tsarin rufin, firam ɗin ɗaukar kaya, ko duk wani abu da tsarin ginin ke gudanarwa. Yi amfani da ƙididdigan sukurori, kusoshi, ko injuna injiniyoyi tare da ƙimar ƙira da aka buga.
- Ƙaƙƙarfan aikace-aikacen sama ko aminci - Kada a dakatar da mutane, kayan aiki masu nauyi, ko wani abu da zai iya cutar da wani a kan dunƙule guda ɗaya da ba a tantance ba.
- Mahalli mai girma - zaren na iya dawowa cikin lokaci; la'akari da mahadi masu kulle zare ko na'urorin kulle na inji.
- Kankare ko masonry - masu kai hari ba su da wani abin cizo a ciki; yi amfani da anchors na faɗaɗawa, anchors na hannun riga, ko anchors na ƙwanƙwasa da aka ƙididdige su don ma'aunin.
Dokar mai sauƙi ce: idan gazawar za ta cutar da wani ko kuma ta kashe kuɗi mai yawa, girman mai ɗaukar hoto daga bayanan ƙira da aka buga kuma a yi amfani da ingantaccen yanayin aminci - kuma lokacin da kuke shakka, tambayi injiniyan injiniya.
FAQ Game da Ƙarfin Ƙarfin Maɗaukakin Kai
Nawa nauyi zai iya ɗaukar dunƙule mai ɗaukar kai a busasshen bango? Kadan sosai - yawanci ƙasa da lbs 10-20 a cikin busasshiyar bango ba tare da anga ba. Yi amfani da ginshiƙan bangon bango ko jujjuya kusoshi don wani abu na gaske.
Shin screws masu ɗaukar kansu suna ɗaukar nauyi a itace ko ƙarfe? Ya dogara da takamaiman haɗin gwiwa, amma sukurori gabaɗaya suna kaiwa ga mafi girman ƙimar janyewar su a cikin katako mai yawa. A cikin ƙaramin ƙarfe na bakin ciki, kauri na ƙarfe yawanci yana iyakance kaya.
Shin dunƙule mai ɗaukar kai yana da ƙarfi kamar kulin lag? A'a. Lag bolts (lag skru) sun fi girma, suna shiga zurfi, kuma suna da ƙimar ƙira mafi girma da aka buga. Don manyan lodin tsari a cikin itace, lag bolts ko skru na tsarin shine zaɓin da ya dace.
Zan iya amfani da masu taɓin kai don rataye TV ko shelf? Don ingarma, madaidaicin girman kai na iya zama lafiya - amma yi amfani da ƙwanƙwasa ƙwanƙwasa ƙira ko ƙugiya don wani abu mai nauyi, kuma koyaushe amfani da anka yayin ɗaure cikin ramukan bango.
Ta yaya zan lissafta adadin nawa mai taɓin kai ya riƙe? Don itace, yi amfani da dabarar cirewa (kimanin 2850 × G² × D lbs kowane inch na shigar ciki don ƙira, kowane NDS). Don karfen takarda, yi amfani da teburan haɗin da masana'anta suka buga ko a gwada haɗin gwiwa.
Ƙarshe
Don haka, nawa nauyi nawa mai ɗaurin kai zai iya riƙe? A cikin aikin haske, amfanin yau da kullun, yawancin masu tada kai suna ɗauka 50-300 lbs ya danganta da girman, abu, da haɗin zaren - kuma wani lokacin fiye da haka. Lambobin guda uku waɗanda suka fi mahimmanci sune diamita na dunƙule, tsawon zaren da aka binne a cikin kayan tushe, da yawan abin. Girman dunƙule don aikin, haƙa madaidaicin ramukan matukin jirgi, kuma koyaushe a yi amfani da yanayin aminci lokacin da lodi ya shafi.
Idan kuna neman masu taɓo kai - ko kuna buƙatar shawara akan nau'in dunƙule, girman, da kayan aikin aikinku - ƙungiyarmu za ta iya taimaka muku zaɓar madaidaitan madaidaitan. Tuntube mu don ƙayyadaddun bayanai da farashi.
Lokacin aikawa: 09-10-2026
