Ntsia thawv sov kho (chǔ lǐ)
Thaum cov khoom ntiag tug, thaum cov khoom siv los ntawm tus neeg mob yuav tsum ua kom raws li tus neeg mob tsis tau raws li lub zog, ces cov ciaj hlau ua lag luam yuav qhia tau tias lub hau los ntawm (tōng guò) cov kev kho cua kub (chǔ lǐ) mus kom ze lub hardness ntawm lub hau. Yog hais tias cov hlua khaus loj yuav tsum yog cov siab, thiab cov ntaub ntawv nws tus kheej tsis tuaj yeem ua tau raws li qhov yuav tsum tau, koj yuav tsum tau ua cov kev kho kub, ces dab tsi yog qhov yuav tsum tau ntawm cov hluavtaws kho cua sov? Ntsia hlau ntxuam cov ntawm no los piav qhia
Qib 1 thiab Qib 2 screws siv rau hauv cov hlau ntawm cov hlau, cov hlau alloy, thiab martensitic stainless hlau (stainless acid-resistant steel) yuav tsum tau ua ntau yam kub hnyiab los yog txias forged los yog kub faus lossis kub kub. Los sis txias txiav tawm bar. Cov tub ntxhais kawm qib 1 thiab qib 2 yuav tsum tau muab cov lus sib tw rau txias los yog txias txias kom tshem tau cov kev ntxhov siab. Kev kub siab yuav tsum yog 1000 tauj ntxiv. F (538. C). Kub-forged lossis Qib 1 thiab 2 screws txiav nrog cov thawv kub uas tsis muaj kev txheeb ze
Ob tug 2H, 2HM, 3, 4, 6, 6F, 7, 7M, thiab 16 ntsuas yuav tsum tau kub-forged los yog txias-headed, los yog kub taub, kub dov, los yog txias dej. Precision Screws Me screws, tseem hu ua me quav screws, yog me me fasteners uas txuas cov khoom ntawm qhov khoom. Lawv yog cov me me, tab sis lawv tuaj yeem ua si lub luag haujlwm tseem ceeb hauv cov khoom tseem ceeb. Siv dav hauv hluav taws xob, hluav taws xob, khoom siv hluav taws xob, rooj tog vaj tog tsev, khoom siv thiab khoom siv. Nws yog thaum tshav kub-kho kom ua tau raws li cov kev cai hais txog kev ua haujlwm. Cov qhab nia no yuav tsum raug rov ua dua qhov kub ntawm qhov khoom siv thiab ua pa taws thiab ntxig rau qhov nruab nrab, qhov txiav txim siab. Cov ntsuas kub kub yuav tsum tsis txhob pub tsawg dua li uas teev nyob rau hauv Table 2-2-70.
Cov ntsia hlau uas muaj cua kub-kho (tuav) tsis tas yuav rov ua dua. Rau 2HM thiab 7M chav screws, qhov kev nyuab siab yuav tsum tau muab tshem tawm tom qab xaus qhov kev sib sau, txiav, khawm (cuab yeej: kais lossis kais) txheej txheem. Qhov kub ntxhov siab yuav tsum tsis txhob qis tshaj qhov kub thiab txias, yog li tshem tawm ntawm kev ntxhov siab yog qhov kev kho mob. Qib 6 thiab 6F ntsuas yuav tsum tau raug kub thiab tsawg kawg yog 1 h thaum kub kub
(2) Hlau tsis muaj hlau (stainless acid-resistant steel) Cov pob hlau ua kom tsis muaj teeb meem tsis muaj dab tsi ntxiv nyob rau ntawm nws. 8. los yog. 9. 8th, 8th, 8M, 8T, 8F, Lu P, Lu N, 9C thiab lwm tus ntsuas, yuav tsum kub los yog txias txaus siab, los yog siv kub foob, kub dov los yog txias txau txiav ua. 8th, 8CA, 8M 8, Luding 8, thiab lwm yam); kub qaum los yog txias forging, los yog kub foob, kub dov los yog txias txav txiav ntxiv rau ib qho. Cov ntsuas yog rhaub mus rau ib qho ntsuas kub kom muaj txaus [1, flil] kom yaj cov chromium carbide. Nws yog tom qab txias ntawm ib tus nqi los mus tiv thaiv lub redeposition ntawm carbides.
4. Cov khoom vaj khoom tsev
(choj lǐ), nyob rau hauv chav tsev kub, tag nrho "W-qib ntswj hardness yuav tsum tau ua raws li qhov yuav tsum tau ua (guī dìng) Lub plhaub npoo tsis zoo ntawm cov hlau tsis muaj steel hlau tho, tom qab zoo hniav Cov xov yog ua los ntawm stainless hlau.Tus stainless hlau screws faib rau stainless hlau SUS201 screws, stainless hlau SUS304 screws, thiab stainless hlau SUS316 screws.Sawvless hlau screws feem ntau xa mus rau steels uas tiv qhov corrosion ntawm huab cua, dej, cov kua qaub , alkali salts los yog lwm yam kev tawm los ntawm cov kabmob sib txawv ntawm qhov sib txawv, nrog rau cov tawv nqaij thiab kua qaub tsis haum, feem ntau. Ib txhia hlau tsis tas yuav acid-resistant, tiam sis acid-resistant steels feem ntau yog non-rust.2HM thiab 7M screws, txhua qhov kev sib tw yuav tsum tau hnav Rockwell los yog Rockwell hardness test, thiab txhua yam yuav tsum ua raws li cov kev cai: Rau qib 1, 2, 2nd, 2HM, 3, 4, 7, 7M, thiab 16 screws, , thiab yuav tsum ncav cuag tus npau npau tawv tawv uas tau teev nyob rau hauv Table 2-2-71.Ces, qhov hluav taws xob hardness test yog kom muab coj los piv rau ib qho kev sib tw nrog ntau theem kev kawm tom qab kev kho cua sov (chǔ lǐ). Cua sov ntsuas cua sov, thiab tom qab 24 h kabmob yog maj mam txias rau chav Ying, ces kev kuaj mob