ASTM yasohoye ibipimo bishya muri 2015 (nyuma yo gusohora Umubumbe wa ASTM wa 2015 01.08) uhuza ibipimo bitandatu byubatswe byubatswe muburyo bumwe. Ibipimo bishya, ASTM F3125, byiswe "Ibisobanuro byerekana imbaraga zikomeye zubatswe, ibyuma na Alloy Steel, Ubushyuhe buvuwe, 120 ksi (830 MPa) na 150 ksi (1040 MPa) Imbaraga ntoya, Inch na Metric Dimensions" kandi ikubiyemo Ibipimo gukurikiza ibipimo biriho:
• ASTM A325 na ASTM A325M, ibisobanuro byerekana ibyuma byubatswe bitunganijwe;
• ASTM A490 na ASTM A490M, ibisobanuro byibyuma bivangwa nubushyuhe butunganijwe; na
• ASTM F1852 na ASTM F2280, ibisobanuro byubwoko bwa "twist off" ubwoko bwa bolt / nut / washer inteko (ibisobanuro byacu bivuga ibi nka "A325 Tru Tension" na "A490 Tru Tension",)
Uku guhuriza hamwe byakosoye itandukaniro rito hagati yuburinganire butandatu kandi ryemerera guhuza byuzuye. Ibi bizemerera impinduka zizaza gukorwa murwego rwose rwimiterere ya bolting kandi bizatanga ingingo imwe yerekanwe kumurongo.
Hano hari impinduka nke zifatika kuri bolts zakozwe haba murwego rwihariye cyangwa amanota muri ASTM F3125 nshya; icyakora ibi nibintu bishobora gushimisha cyane:
• Bolt ya A325 irenze 1 "diameter ntizongera kugira imbaraga zo hasi no gukomera (Bolt zose za A325 zizaba 120 KSI ntoya ntarengwa ugereranije na 105 KSI byibuze> 1" diameter).
• Nta kizamini gisimburana gisabwa kugirango A325 ihindurwe mu mubiri usanzwe (hariho Umugereka wa F3125 wo gupima ubushobozi bwa FHWA-bwo gupima).
• Amafaranga arengaho yongewemo nimbuto zikoreshwa hamwe na bolts zometse kuri F1136 / F1136M cyangwa F2833 (Zinc / Aluminium) sisitemu yo gusiga amarangi.
Wongeyeho amahirwe yo gukoresha amanota afite ibipimo bitandukanye (nkumutwe wahinduwe wa geometrike cyangwa uburebure budasanzwe bwumutwe) usaba S2 y'inyongera S2 hanyuma ukongeraho "S" kurangiza icyiciro (nka "A325S" cyangwa "A490S").
Tuzahindura ibisobanuro byacu kugirango dushyiremo ASTM F3125 kumusaruro mushya. Nyamuneka nyamuneka twandikire niba ufite ikibazo cyangwa niba ushaka andi makuru. Murakoze
Igihe cyoherejwe: Gicurasi-23-2017