Hlau Gasket

Gaskets yog cov khoom siv nyob nruab nrab ntawm ob lub dav hlau kom ntxiv dag zog rau lub foob. Nws yog cov khoom sib khi tso rau nruab nrab ntawm qhov chaw sib khi zoo li qub kom tiv thaiv cov kua dej tawm.

Gaskets feem ntau yog siv los tiv thaiv lub siab, corrosion, thiab to los ntawm lub ntuj thermal expansion thiab contraction ntawm kab. Txij li lub tshuab nto tsis tuaj yeem ua tau zoo, shims tuaj yeem siv los sau cov irregularities.

1. Cov pa roj carbon steel: qhov siab tshaj plaws ua haujlwm kub tsis tshaj 538 degree, tshwj xeeb tshaj yog thaum nruab nrab muaj oxidation. Cov pa roj carbon zoo zoo kuj tsis tsim nyog siv rau hauv kev tsim cov khoom siv hauv cov khoom siv hauv cov kua qaub, nruab nrab lossis acidic ntsev tov khoom, yog tias cov pa roj carbon steel muaj kev ntxhov siab, siv cov dej kub rau cov khoom siv sib tsoo yog siab heev. Cov pa roj carbon steel gaskets feem ntau yog siv nyob rau hauv siab concentrations ntawm acid thiab ntau alkali daws. Brinell hardness yog hais txog 120.

2. 304 stainless hlau 18-8 (chromium 18-20%), npib tsib xee 8-10 feem pua), qhov pom zoo ua haujlwm kub siab tshaj plaws yog tsis ntau tshaj 760 degree . Nyob rau hauv qhov kub ntawm -196 ~ 538 degree, kev nyuaj siab corrosion thiab grain ciam corrosion yog ib qho yooj yim tshwm sim. Brinell hardness 160.

3. Cov ntsiab lus carbon ntawm 304L stainless hlau tsis tshaj 0. 03 feem pua. Qhov pom zoo ua haujlwm kub siab tshaj plaws yog tsis siab tshaj 760 degree C. Corrosion kuj zoo ib yam li 304 stainless hlau. Cov ntsiab lus tsis tshua muaj carbon tsawg txo cov dej nag los ntawm cov lattice, thiab cov nplej ciam teb corrosion yog siab dua 304 stainless hlau. Brinell hardness yog hais txog 140.

4. 316 stainless hlau 18-12 (chromium 18 feem pua, npib tsib xee 12 feem pua), nyob rau hauv 304 stainless hlau nce li 2 feem pua ​​molybdenum, thaum kub nce nws lub zog thiab corrosion kuj zoo. Thaum kub nce, nws muaj kev nkag siab ntau dua li lwm cov hlau tsis zoo li qub. Qhov pom zoo ua haujlwm kub siab tshaj plaws tsis siab tshaj 760 degree C. Lub Brinell hardness yog li 160.

5. Qhov kev pom zoo ua haujlwm siab tshaj plaws ntawm 316L stainless hlau tsis siab tshaj 760 degree C mus rau 815 degree C. Piv nrog 316 stainless hlau, nws muaj kev tiv thaiv zoo rau kev ntxhov siab thiab grain ciam corrosion nrog cov ntsiab lus carbon tsis tshaj. Brinell hardness yog hais txog 140.

6. 20 alloys 45% hlau, 24% npib tsib xee, 20% chromium, thiab me me ntawm molybdenum thiab tooj liab. Qhov kev pom zoo siab tshaj plaws ua haujlwm kub yog li ntawm 760 ° C txog 815 ° C. Tshwj xeeb tshaj yog tsim rau kev tsim cov khoom siv sulfuric acid corrosion-resistant, Brinell hardness txog 160.

7. Aluminium aluminium (cov ntsiab lus tsis pub tsawg dua 99 feem pua). Aluminium muaj qhov zoo heev corrosion kuj thiab machining zog, haum rau kev tsim khoom ntawm ob lub gaskets. Lub Brinell hardness yog hais txog 35. Qhov siab tshaj plaws kev khiav hauj lwm qhov kub thiab txias yog 426 degree C.

9. Brass (COPPER 66 feem pua, ZINC 34 feem pua), nyob rau hauv feem ntau ua hauj lwm tej yam kev mob, muaj corrosion kuj zoo tab sis tsis haum rau acetic acid, ammonia, ntsev, thiab acetylene. Qhov kev pom zoo siab tshaj plaws ua haujlwm kub yog 260 ° C lossis tsawg dua. Brinell hardness yog hais txog 58.

11. Inconel 600 nickel puag alloy (77 feem pua ​​​​nickel, 15 feem pua ​​​​chromium, thiab 7 feem pua ​​​​ntawm hlau). Qhov kev pom zoo siab tshaj plaws ua haujlwm kub yog 1093 degree C. Lub zog siab ntawm qhov kub thiab txias yog feem ntau siv rau hauv cov khoom siv qhov kev ntxhov siab corrosion yuav daws tau. Ntawm qhov kub thiab txias, nws muaj kev ua haujlwm zoo tib yam. Brinell hardness yog hais txog 150.

12. Monel 400 (tooj liab 30 feem pua, npib tsib xee pom zoo siab tshaj plaws kev khiav hauj lwm kub tsis ntau tshaj 815 degree. Nws muaj corrosion kuj zoo heev rau feem ntau acids thiab bases tshwj tsis yog rau cov muaj zog oxidizing acids. mercuric chloride, thiab mercuric media, yog li nws tsis haum rau cov xov xwm saum toj no, yog siv dav hauv kev tsim cov khoom siv hydrofluoric acid, Brinell hardness yog li 120.

13. Titanium

Qhov pom zoo ua haujlwm siab tshaj plaws yog 1093 degree C. Zoo heev corrosion kuj ntawm qhov kub thiab txias. Nws paub tias yuav tiv taus cov tshuaj chloride ion yaig thiab muaj kev tiv thaiv zoo rau nitric acid corrosion nyob rau hauv ntau qhov kub thiab txias. Titanium yog tsis tshua muaj siv nyob rau hauv feem ntau alkali daws thiab yog haum rau oxidizing tej yam kev mob. Brinell hardness yog hais txog 216.

Yog tias koj muaj lus nug txog lubMetallic gasket, thov hu rau peb. Cov sijhawm ua haujlwm: 8:30 teev sawv ntxov txog 17:30 teev tsaus ntuj

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