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Peb cog lus rau RTS cov khoom:
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80% cov khoom xa tuaj hauv 7 hnub
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Kev txiav txim ntau, thov hu rau cov neeg siv khoom
d | M1.4 | M1.6 | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | |
P | Coarse xov | 0.3 | 0.35 Nws | 0.4 | 0.45 ib | 0.5 | 0.7 ua | 0.8 ua | 1 | 1.25 | 1.5 | 1.75 ib | 2 | 2 | 2.5 | 2.5 |
Cov xov zoo | / | / | / | / | / | / | / | / | 1 | 1.25 | 1.5 | 1.5 | 1.5 | 2 | 2 | |
Xov xwm zoo heev | / | / | / | / | / | / | / | / | / | 1 | 1.25 | / | / | 1.5 | 1.5 | |
b | Kev siv tus nqi | 14 | 15 | 16 | 17 | 18 | 20 | 22 | 24 | 28 | 32 | 36 | 40 | 44 | 48 | 52 |
dk | Max (nruab nrab) | 2.6 | 3 | 3.8 | 4.5 | 5.5 | 7 | 8.5 | 10 | 13 | 16 | 18 | 21 | 24 | 27 | 30 |
Max (Knurl *) | 2.74 ib | 3.14 | 3.98 ib | 4.68 ib | 5.68 ib | 7.22 ib | 8.72 ib | 10.22 Nws | 13.27 Nws | 16.27 Nws | 18.27 Nws | 21.33 Nws | 24.33 Nws | 27.33 Nws | 30.33 Nws | |
Min | 2.46 ib | 2.86 ib | 3.62 ib | 4.32 ib | 5.32 ib | 6.78 ib | 8.28 ib | 9.78 ib | 12.73 Nws | 15.73 Nws | 17.73 Nws | 20.67 Nws | 23.67 Nws | 26.67 Nws | 29.67 Nws | |
ds | Max | 1.4 | 1.6 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
Min | 1.26 | 1.46 ib | 1.86 ib | 2.36 ib | 2.86 ib | 3.82 ib | 4.82 ib | 5.82 ib | 7.78 ib | 9.78 ib | 11.73 Nws | 13.73 Nws | 15.73 Nws | 17.73 Nws | 19.67 Nws | |
k | Max | 1.4 | 1.6 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
Min | 1.26 | 1.46 ib | 1.86 ib | 2.36 ib | 2.86 ib | 3.82 ib | 4.82 ib | 5.7 | 7.64 ib | 9.64 ib | 11.57 Nws | 13.57 Nws | 15.57 Nws | 17.57 Nws | 19.48 Nws | |
s | Nominal | 1.3 | 1.5 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 14 | 17 |
Min | 1.32 ib | 1.52 ib | 1.52 ib | 2.02 Nws | 2.52 ib | 3.02 Nws | 4.02 ib | 5.02 ib | 6.02 ib | 8.025 ib | 10.025 Nws | 12.032 Nws | 14.032 Nws | 14.032 Nws | 17.05 Nws | |
Max | 1.36 ib | 1.56 ib | 1.56 ib | 2.06 Nws | 2.58 ib | 3.08 Nws | 4.095 ib | 5.14 ib | 6.14 ib | 8.175 ib | 10.175 Nws | 12.212 Nws | 14.212 Nws | 14.212 Nws | 17.23 Nws | |
t | Min | 0.6 | 0.7 ua | 1 | 1.1 | 1.3 | 2 | 2.5 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
Xov Length = b | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
d | (M22) | M24 | (M27) | M30 | (M33) | M36 | M42 | M48 | M56 | M64 | M72 | M80 | M90 | M100 | |
P | Coarse xov | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6 | 6 | 6 | 6 |
Cov xov zoo | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | |
Xov xwm zoo heev | 1.5 | / | / | / | / | / | / | / | / | / | / | / | / | / | |
b | Kev siv tus nqi | 56 | 60 | 66 | 72 | 78 | 84 | 96 | 108 | 124 | 140 | 156 | 172 | 192 | 212 |
dk | Max (nruab nrab) | 33 | 36 | 40 | 45 | 50 | 54 | 63 | 72 | 84 | 96 | 108 | 120 | 135 | 150 |
Max (Knurl *) | 33.39 Nws | 36.39 Nws | 40.39 Nws | 45.39 Nws | 50.39 Nws | 54.46 ib | 63.46 ib | 72.46 ib | 84.54 ib | 96.54 ib | 108.54 Nws | 120.54 Nws | 135.63 Nws | 150.63 Nws | |
Min | 32.61 Nws | 35.61 Nws | 39.61 Nws | 44.61 ib | 49.61 ib | 53.54 ib | 62.54 ib | 71.54 ib | 83.46 ib | 95.46 ib | 107.46 Nws | 119.46 Nws | 134.37 Nws | 149.37 Nws | |
ds | Max | 22 | 24 | 27 | 30 | 33 | 36 | 42 | 48 | 56 | 64 | 72 | 80 | 90 | 100 |
Min | 21.67 Nws | 23.67 Nws | 26.67 Nws | 29.67 Nws | 32.61 Nws | 35.61 Nws | 41.61 ib | 47.61 ib | 55.54 ib | 63.54 ib | 71.54 ib | 79.54 ib | 89.46 ib | 99.46 ib | |
k | Max | 22 | 24 | 27 | 30 | 33 | 36 | 42 | 48 | 56 | 64 | 72 | 80 | 90 | 100 |
Min | 21.48 Nws | 23.48 Nws | 26.48 Nws | 29.48 Nws | 32.38 Nws | 35.38 Nws | 41.38 Nws | 47.38 Nws | 56.26 ib | 63.26 ib | 71.26 ib | 79.26 ib | 89.13 ib | 99.13 ib | |
s | Nominal | 17 | 19 | 19 | 22 | 24 | 27 | 32 | 36 | 41 | 46 | 55 | 65 | 75 | 85 |
Min | 17.05 Nws | 19.065 Nws | 19.065 Nws | 22.065 Nws | 24.065 Nws | 27.065 Nws | 32.08 Nws | 36.08 Nws | 41.08 Nws | 46.08 Nws | 55.1 ib | 65.1 ib | 75.1 ib | 85.12 ib | |
Max | 17.23 Nws | 19.275 Nws | 19.275 Nws | 22.275 Nws | 24.275 Nws | 27.275 Nws | 32.33 Nws | 36.33 Nws | 41.33 Nws | 46.33 Nws | 55.4 ib | 65.4 ib | 75.4 ib | 85.47 ib | |
t | Min | 11 | 12 | 13.5 Nws | 15.5 ib | 18 | 19 | 24 | 28 | 34 | 38 | 43 | 48 | 54 | 60 |
Xov Length = b | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Qhov txawv ntawm tooj liab, tooj dag, Bronze yog dab tsi?
Copper, Brass thiab Bronze, lwm yam hu ua "Red Metals", tej zaum yuav zoo li qub. Tab sis lawv yeej muaj ntau qhov sib txawv ntawm lub hauv paus, kev ua tau zoo thiab lwm yam.
Tooj
tooj liab yog siv nyob rau hauv ib tug ntau yam ntawm cov khoom vim nws zoo heev hluav taws xob thiab thermal conductivity, zoo zog, zoo formability thiab kuj mus corrosion. Cov yeeb nkab thiab cov yeeb nkab fittings feem ntau yog tsim los ntawm cov hlau vim lawv cov corrosion kuj. Lawv tuaj yeem tau yooj yim soldered thiab brazed, thiab ntau yam tuaj yeem welded los ntawm ntau yam roj, arc thiab kuj txoj kev. Lawv tuaj yeem polished thiab buffed rau yuav luag txhua qhov xav tau kev ntxhib los mos thiab luster.
Muaj cov qib ntawm cov tooj liab tsis sib xws, thiab lawv tuaj yeem sib txawv ntawm cov impurities uas muaj. Cov qib tooj liab tsis muaj oxygen yog siv tshwj xeeb hauv kev ua haujlwm uas xav tau kev ua haujlwm siab thiab ductility.
Ib qho ntawm cov khoom tseem ceeb ntawm tooj liab yog nws lub peev xwm los tua cov kab mob. Tom qab kev sim tshuaj tua kab mob dav dav los ntawm Lub Chaw Tiv Thaiv Ib puag ncig, nws tau pom tias 355 tooj liab alloys, suav nrog ntau cov tooj dag, tau pom tias tua ntau dua 99.9% ntawm cov kab mob hauv ob teev ntawm kev sib cuag. Ib txwm tarnishing tau pom tias tsis cuam tshuam rau kev ua haujlwm ntawm cov tshuaj tiv thaiv kab mob.
Kev siv tooj liab
Tooj liab yog ib qho ntawm cov hlau thaum ntxov nrhiav tau. Cov Greeks thiab Loos tau ua nws rau hauv cov cuab yeej lossis cov khoom dai, thiab tseem muaj cov ntaub ntawv keeb kwm qhia txog kev siv tooj liab los ua kom tsis muaj qhov txhab thiab ntxuav cov dej haus. Niaj hnub no nws yog feem ntau pom nyob rau hauv cov khoom siv hluav taws xob xws li thaiv vim nws muaj peev xwm ua tau hluav taws xob zoo.
tooj dag
Brass yog tsuas yog ib qho alloy uas muaj tooj liab nrog zinc ntxiv. Cov tooj dag tuaj yeem muaj qhov sib txawv ntawm zinc lossis lwm yam ntxiv. Cov khoom sib txawv no ua rau muaj ntau yam khoom thiab sib txawv ntawm cov xim. Ntau cov zinc muab cov khoom siv nrog kev txhim kho lub zog thiab ductility. Brass tuaj yeem muaj xim los ntawm liab mus rau daj nyob ntawm seb cov zinc ntxiv rau cov hlau.
Yog tias zinc cov ntsiab lus ntawm tooj dag nyob ntawm 32% mus rau 39%, nws yuav muaj peev xwm ua haujlwm kub, tab sis kev ua haujlwm txias yuav raug txwv.
Yog tias cov tooj dag muaj ntau dua 39% zinc (piv txwv li - Muntz Hlau), nws yuav muaj zog dua thiab qis dua (ntawm chav tsev kub).
Kev siv tooj dag
Brass feem ntau yog siv rau kev kho kom zoo nkauj feem ntau vim nws zoo ib yam li kub. Nws kuj yog ib qho siv los ua cov twj paj nruag vim nws ua haujlwm siab thiab ua haujlwm ntev.
Bronze
Bronze yog ib qho alloy uas feem ntau yog tooj liab nrog kev sib ntxiv ntawm lwm cov khoom xyaw. Feem ntau cov khoom xyaw ntxiv yog feem ntau tin, tab sis arsenic, phosphorus, aluminium, manganese, thiab silicon tuaj yeem siv los tsim cov khoom sib txawv hauv cov khoom. Tag nrho cov khoom xyaw no tsim ib qho alloy nyuaj dua li tooj liab ib leeg.
Bronze yog tus cwj pwm los ntawm nws cov xim dull-kub. Koj tuaj yeem qhia qhov txawv ntawm bronze thiab tooj dag vim bronze yuav muaj faint rings ntawm nws qhov chaw.
Bronze Daim Ntawv Thov
Bronze yog siv nyob rau hauv kev tsim kho ntawm sculptures, suab paj nruas instruments thiab medals, thiab nyob rau hauv industrial daim ntaub ntawv xws li bushings thiab bearings, qhov twg nws tsis tshua muaj hlau ntawm hlau txhuam yog ib qho zoo dua. Bronze kuj muaj cov ntawv siv nautical vim nws tsis kam tiv thaiv corrosion.
* Daim duab hauv qab no qhia txog qhov sib txawv ntawm kev lag luam incoterms. Thov xaiv qhov koj nyiam.
Zoo Ua Ntej, Kev Nyab Xeeb Kev Nyab Xeeb