Hlau Qhua

Cov txheej txheem:

Hlau Qhua
Hlau Qhua

Video: Hlau Qhua

Video: Hlau Qhua
Video: Ua Hauv Qhua 2024, Plaub Hlis Ntuj
Anonim

GOSTs ntawm cov tub luam hlau yog cov qeb tseem ceeb ntawm lub xeev cov qauv siv txij li lub sijhawm ntawm USSR. Lawv tau txais los ntawm Interstate Council rau Kev Txheeb Xyuas, Kev Ntsuas thiab Kev Cog Lus. Niaj hnub no GOSTs yog cov cai tsis yog-kev cai.

Hlau qhua
Hlau qhua

Keeb Kwm ntawm GOSTs

Lub xeev cov qauv saws los txog rau xyoo 1996 tau txiav txim siab raug cai raws li txoj cai lij choj, uas txuas nrog cov tuam txhab lag luam tau cog lus rau kev siv rau lawv nyob hauv thaj chaw tau txhais los ntawm kev nteg tseg ntawm ib qho qauv. Txawm li cas los xij, tom qab xyoo 1996, rau cov ntaub ntawv sau tseg nyob rau lub sijhawm ntawd, kev cai tsis ua raws li qhov yuav tsum tau ua.

Tam sim no, ib daim ntawv twg txais cov xwm txheej ntawm txoj cai tswjfwm kev cai lij choj tsuas yog tom qab nws tau sau npe nrog Ministry of Justice.

Cov kev sib tw nrov tshaj plaws ntawm lub xeev cov qauv rau niaj hnub no yog qhov thiaj li hu ua "Cov pawg sib cais ntawm lub xeev cov qauv ntawm USSR". Nws yog nruj me ntsis hierarchical, thiab nws alphanumeric code system muaj li ntawm peb mus rau plaub theem. Thawj ntu sawv cev rau 19 tus tsiaj ntawv ntawm Lavxias Lavxias, thaum qib thib ob (chav kawm) thiab theem peb (pawg) yog qib digital. Qib theem plaub lossis pawg neeg sib xyaw ua ke tuaj yeem muab ntxiv tom qab teev.

Daim ntawv thov ntawm GOSTs rau hlau

Cov khoom lag luam steel yog sawv cev los ntawm GOSTs li nram qab no: GOST 2590-88 (kub-kuav los tiag steel puag ncig), GOST 5781-82 (kub-kuav los tiag steel rau kev txhawb ua vaj tse cov pob zeb ua haujlwm), GOST 10884-94 (thermomechanically hardened reinforcing steel rau pob zeb ua kev txhawb nqa)), GOST 2591-88 (steel kub-kuav los tiag square), GOST 8559-75 (ua kom zoo li lub xwmfab), GOST 103-76 (kub-kuav los tiag steel sawb), GOST 82-70 (kub-kuav los tiag hlau universal dav).

Forged steel (square thiab round), ntxiv rau alloys thiab high-alloy steels, mus hauv GOST 1133-71 thiab GOST 5632-72, feem.

Cov ntawv thiab cov kauj hlau yog sawv cev los ntawm GOSTs li nram qab no: GOST 19903-74 (kub-kuav los tiag hlau), GOST 19904-90 (txias-kuav los tiag hlau), GOST 8568-77 (steel ntawv nrog lenticular thiab rhombic corrugation), GOST 6009- 74 (kub-kuav los tiag steel sawb), GOST 16523-97 (daim ntawv ua los ntawm cov hlau rau cov laj thawj), GOST 14918-80 (galvanized ntawv), GOST 24045-94 (profiled steel ntawv), GOST 19281 (kub-kuav los tiag tsawg-alloy ntawv).

Cov pas nrig hlau thiab cov xaim hlau yog sawv cev los ntawm GOSTs: GOST 30136-94 (cov nqaj hlau ua los ntawm cov pa roj carbon zoo li qub), GOST 2246-70 (cov hlau tsis muaj hlau xaim hlau), GOST 3282-74 (qis-cov roj carbon steel hlau), GOST 6727-80 (txias-twv tsawg-carbon steel hlau rau reinforced ua vaj tse pob zeb), GOST 7348-81 (hlau rau cov kab ua ntu ntu muaj zog), GOST 7372 (steel hlua hlau), GOST 9389 (carbon hlau caij nplooj ntoos hlav hlau hlau).

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