A yi sa na kusoshi amfani da karfe tsarin dangane ne 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9 da sauransu. Bolts na 8.8 da sama an yi su ne da ƙananan ƙarfe na carbon alloy ko matsakaicin ƙarfe na carbon da zafin jiki (quenched, tempered), waɗanda galibi ana kiran su manyan kusoshi masu ƙarfi kuma sauran galibi ana kiran su kusoshi na yau da kullun.Babban madaidaicin zaren shine mabuɗin yinhigh quality CNC machining sassa.
Alamar aikin bolt ta ƙunshi sassa biyu, waɗanda bi da bi suna wakiltar ƙimar ƙarfin ƙarfi na ƙima da ma'auni na abin rufewa. Kamar:
Don kusoshi na aji na 4.6, ma'anar ita ce:
Ƙarfin ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan abin rufewa ya kai 400MPa;
Matsakaicin ƙarfin ƙarfin abu shine 0.6;
Ƙarfin yawan amfanin ƙasa na abin rufewa shine 400 × 0.6 = 240MPa.
Matsayin aiki mai ƙarfi 10.9, kayan sa bayan magani mai zafi, na iya isa:
Ƙarfin ƙarancin ƙima na kayan abin rufewa ya kai 1000MPa;
Matsakaicin ƙarfin abin rufewa shine 0.9;
Ƙarfin yawan amfanin ƙasa na abin rufewa shine 1000 × 0.9 = 900MPa.
Ma'anar darajar aikin bolt shine ma'auni na duniya. Bolts na nau'in wasan kwaikwayon iri ɗaya, ba tare da la'akari da bambanci tsakanin kayan su da asalinsu ba, suna da aikin iri ɗaya, kuma kawai ƙimar wasan za a iya zaɓar a cikin ƙirar.
Makiyoyi masu ƙarfi na 8.8 da 10.9 suna komawa zuwa maki juriya mai ƙarfi na kusoshi 8.8GPa da 10.9GPa
8.8 Ƙarfin ƙarancin ƙima 800N/MM2 Ƙarfin yawan amfanin ƙasa 640N/MM2
Gabaɗaya, “x. Y” ana amfani da shi don nuna ƙarfin kusoshi, X * 100 = Ƙarfin ƙwanƙwasa, X * 100 * (Y / 10) = Ƙarfin ƙurar ƙura (saboda bisa ga lakabin: Ƙarfin Ƙarfin Ƙarfin Ƙarfin Ƙarfafawa) karfi = Y/10)
Irin su 4.8, ƙarfin jujjuyawar kullin shine: 400MPa; Ƙarfin yawan amfanin ƙasa shine 400*8/10=320MPa.
Bugu da kari: bakin karfe yawanci ana yiwa lakabi da A4-70, A2-70, ma'anar wani fassarar.
Don aunawa
Tsarin auna na tsayi a cikin duniya a yau akwai nau'ikan nau'ikan nau'ikan, ɗaya don tsarin awo, wanda ya dace da ƙirar (mm), santimita na kwamfuta (MM), da sauransu, a cikin Turai, China da Japan da sauran kudu maso gabas Amfani da Asiya ya fi yawa, wani kuma Ingilishi ne, sashin aunawa ya fi inci (inch), daidai da tsohon birni “a ƙasarmu, ana amfani da shi sosai a Amurka, Burtaniya da sauran ƙasashen Turai da Amurka.
Ma'aunin awo: (tushe 10) 1m = 100 cm = 1000 mm
Tsarin Mulki: (tushe 8) 1 inch = 8 mintuna 1 inch = 25.4 mm 3/8 x 25.4 = 9.52
Kayayyakin da ke ƙasa 1/4 suna amfani da lambar ƙira don wakiltar girman adireshinsu, kamar: 4#, 5#, 6#, 7#, 8#, 10#, 12#
Zaren dunƙulewa
Zare wani siffa ne mai layukan karkace iri ɗaya akan sashe na waje ko na ciki na ƙaƙƙarfan. Dangane da sifofinsa na tsari da amfani da shi za a iya kasu kashi uku:
Zaren gama gari: Siffar haƙora mai kusurwa uku, ana amfani da ita don haɗawa ko ɗaure sassa. Zaren gama gari yana kasu kashi biyu na zare mara nauyi da zare mai kyau daidai gwargwado, kuma zaren mai kyau yana da ƙarfin haɗin gwiwa.
Zaren watsawa: siffar hakori trapezoid, rectangle, saw da triangle, da dai sauransu.
Zaren hatimi: Ana amfani da shi don haɗin hatimi, galibi zaren bututu, zaren taper da zaren bututun taper.
Rarraba bisa ga siffa:
Zaren dacewa daraja
Babban madaidaicin zaren wani sashe ne na yinhigh quality CNC Machining sassa.
Madaidaicin shine adadin raguwa ko matsawa tsakanin zaren dunƙulewa, kuma matakin dacewa shine ƙayyadaddun haɗe-haɗe da juriya da ke aiki akan zaren ciki da waje.
1. Domin zaren inci iri ɗaya, akwai maki uku na zaren waje: 1A, 2A da 3A, da kuma maki uku na zaren ciki: 1B, 2B da 3B, waɗanda duk sun dace. Mafi girman lambar matsayi, mafi girman dacewa. A cikin THEADS inch, an ayyana karkatacciyar hanya don maki 1A da 2A kawai, RASHIN TSARI 3A sifili ne, kuma karkacewar sa na 1A da 2A daidai yake. Mafi girman adadin maki, ƙaramin haƙuri.
Class 1A da 1B, makin haƙuri maras sako-sako, wanda ya dace da dacewa da zaren ciki da waje.
Azuzuwan 2A da 2B sune mafi yawan nau'o'in jurewar zaren da aka tsara don jerin na'urorin injina na Biritaniya.
Class 3A da 3B, dunƙule don samar da mafi m fit, dace da fasteners tare da m haƙuri, don aminci m zane.
Don zaren waje, CLASS 1A da 2A suna da juriya mai dacewa, CLASS 3A baya. Haƙuri na Class 1A shine 50% mafi girma fiye da juriya na aji 2A, 75% mafi girma fiye da juriya na aji 3A, don zaren ciki, haƙurin aji 2B shine 30% mafi girma fiye da juriyar 2A. Class 1B ya fi 50% girma fiye da ajin 2B da 75% girma fiye da ajin 3B.
2. Zaren awo, zaren waje yana da maki uku: 4h, 6h da 6g, zaren ciki yana da maki uku: 5H, 6H, 7H. (Madaidaicin maki na zaren yau da kullun shine I, II, III, da yawanci II.) A cikin zaren awo, ainihin karkatar da H da h ba komai bane. Maɓallin asali na G yana da kyau, kuma ainihin karkatacciyar E, F da G ba ta da kyau.
H shine wuri na gama-gari na juriya na zaren ciki, gabaɗaya ba a yi amfani da shi azaman rufin saman ba, ko tare da siraran phosphating Layer. Matsayi na asali na G don lokatai na musamman, kamar suttura mai kauri, galibi ba kasafai ake amfani da su ba.
g ana amfani dashi da yawa don sanya suturar bakin ciki na 6-9um, idan buƙatun zanen samfur ɗin sune kusoshi 6h, zaren dunƙule kafin plating yana ɗaukar bandejin haƙuri na 6g.
Mafi kyawun haɗin zaren da ya dace da H/g, H/h ko G/h, don kusoshi, goro da sauran zaren mai ladabi mai ladabi, daidaitaccen shawarar 6H/6g ya dace.
3. Alamar zare
Babban sigogi na geometric na kai - tapping da kai - zaren hakowa
1. Babba diamita/diamita na waje (d1): Diamita na silinda hasashe tare da raƙuman zaren ruɗe. Diamita na zaren asali yana wakiltar diamita mara kyau na girman zaren.
2. Hanyar ƙafa / diamita na ƙasa (d2): diamita na silinda mai hasashe inda kasan zaren ya mamaye.
3. Tazarar haƙori (p): yana nufin nisan axial tsakanin maki biyu daidai na haƙoran maƙwabta akan layi na tsakiya. A cikin tsarin sarauta, ana nuna nisa tsakanin hakora da adadin hakora a kowane inch (25.4mm).
Mai zuwa yana lissafin ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun haƙori na nesa (metric) Yawan hakora (inch)
1) Matsakaicin kai:
Ƙayyadaddun bayanai: ST 1.5, S T1.9, S T2.2, S T2.6, S T2.9, S T3.3, S T3.5, S T3.9, S T4.2, S T4.8, S T5.5, S T6.3, S T8.0, S T9.5
Nisan haƙori: 0.5, 0.6, 0.8, 0.9, 1.1, 1.3, 1.3, 1.3, 1.4, 1.6, 1.8, 1.8, 2.1, 2.1
2) Haƙoran kai na Biritaniya:
Bayani: 4#, 5#, 6#, 7#, 8#, 10#, 12#, 14#
Yawan hakora: AB hakora 24, 20, 20, 19, 18, 16, 14, 14
Haƙori A 24, 20, 18, 16, 15, 12, 11, 10
Lokacin aikawa: Oktoba-08-2022