Metal gasket impahla
1. Insimbi yekhabhoni
Izinga lokushisa eliphezulu lokusebenza linconywa ukuthi lingadluli ku-538 ¡æ, ikakhulukazi uma okuphakathi kuyi-oxidizing. Ipuleti lensimbi yensimbi yekhwalithi ephezulu aliyilungele okokusebenza okusetshenziselwa ukukhiqiza i-asidi ye-inorganic, i-neutral noma isixazululo sikasawoti esine-asidi. Uma i-carbon steel ingaphansi kwengcindezi, izinga lezingozi zemishini ngaphansi kwesimo samanzi ashisayo liphezulu kakhulu. Ama-gaskets ensimbi ye-carbon ngokuvamile asetshenziselwa ukugxila okuphezulu kwe-asidi kanye nezixazululo eziningi ze-alkali. Ukuqina kwe-Brinell cishe ku-120.
2.304 insimbi engagqwali
18-8 (i-chromium 18-20%, i-nickel 8-10%), kanye nezinga lokushisa eliphezulu elinconywayo elisebenzayo akufanele lidlule ku-760 ¡æ. Ezingeni lokushisa - 196 ~ 538 ¡æ, ukugqwala kwengcindezi kanye nokugqwala komngcele wokusanhlamvu kulula ukwenzeka. Ukuqina kwe-Brinell 160.
3.304l insimbi engagqwali
Okuqukethwe kwekhabhoni akufanele kudlule u-0.03%. Izinga lokushisa eliphezulu elinconyiwe akumele lidlule ku-760 ¡æ. Ukumelana nokugqwala kufana nensimbi engagqwali engu-304. Okuqukethwe kwekhabhoni ephansi kunciphisa ukuduma kwekhabhoni kusuka ku-lattice, futhi ukumelana nokugqwala komngcele wokusanhlamvu kungaphezulu kwalokho kwensimbi engagqwali engu-304. Ukuqina kwe-Brinell cishe ku-140.
4.316 insimbi engagqwali
I-18-12 (i-chromium 18%, i-nickel 12%), engeza cishe u-2% we-molybdenum ku-304 insimbi engagqwali. Lapho izinga lokushisa likhuphuka, amandla ayo nokumelana nokugqwala kuyathuthuka. Lapho izinga lokushisa likhuphuka, linokumelana nokukhuphuka okuphezulu kunezinye izinsimbi ezijwayelekile ezingenasici. Izinga lokushisa eliphezulu elinconyiwe akumele lidlule ku-760 ¡æ. Ukuqina kwe-Brinell cishe ku-160.
5.316l insimbi engagqwali
Izinga lokushisa eliphezulu elinconywayo eliqhubekayo lokusebenza akufanele lidlule ku-760 ¡æ ~ 815 ¡æ. Uma iqhathaniswa nensimbi engagqwali engu-316, inokumelana nokucindezeleka okungcono kanye nokumelana nokugqwala komngcele wokusanhlamvu. Ukuqina kwe-Brinell cishe ku-140.
6.20 ingxubevange
45% yensimbi, 24% nickel, 20% chromium kanye nenani elincane molybdenum nethusi. Izinga lokushisa eliphezulu elinconyiwe akumele lidlule ku-760 ¡æ ~ 815 ¡æ. Ilungele kakhulu ukukhiqiza imishini ukumelana nokugqwala kwe-sulfuric acid, ngobulukhuni be-Brinell obungaba ngu-160.
7. Aluminium
I-Aluminium (okuqukethwe okungengaphansi kuka-99%). I-Aluminium inokumelana nokugqwala okuhle kakhulu kanye nokucutshungulwa, elungele ukukhiqiza ama-gasket ama-clip amabili. Ubulukhuni beBrinell bucishe bube ngu-35. Izinga lokushisa eliphezulu elinconywayo eliqhubekayo lokusebenza akufanele lidlule ku-426 ¡æ.
8. Ithusi elibomvu
Ukwakhiwa kwethusi elibomvu kuseduze nethusi elihlanzekile, eliqukethe inani elincane lesiliva ukwandisa izinga lokushisa eliqhubekayo lokusebenza. Kutuswa ukuthi izinga lokushisa eliphezulu eliqhubekayo lokusebenza akufanele lidlule ku-260 ¡æ. Ukuqina kweBrinell cishe kungama-80.
9. Ithusi
(ithusi 66%, zinc 34%), inokumelana nokugqwala okuhle ngaphansi kwezimo eziningi zokusebenza, kodwa ayifanele i-acetic acid, i-ammonia, usawoti kanye ne-acetylene. Kutuswa ukuthi izinga lokushisa eliphezulu eliqhubekayo lokusebenza akufanele lidlule ku-260 ¡æ. Ukuqina kweBrinell cishe kungama-58.
10. I-Hastelloy B-2
(26-30% molybdenum, 62% nickel kanye 4-6% iron). Izinga lokushisa eliphezulu elinconyiwe akumele lidlule ku-1093 ¡æ. Inokumelana nokushisa okuhle kakhulu nokusebenza kwe-hydrochloric acid corrosion. Futhi inokumelana okuhle kakhulu nokugqwala kwegesi ye-hydrogen chloride emanzi, i-sulfuric acid, i-phosphoric acid kanye nokunciphisa ukugqwala kwesisombululo sikasawoti. Inamandla aphezulu ekushiseni okuphezulu. Ukuqina kwe-Brinell cishe ku-230.
11. I-Hastelloy C-276
16-18% molybdenum, 13-17.5% chromium, 3.7-5.3% tungsten, 4.5-7% yensimbi, kanti ezinye nickel). Izinga lokushisa eliphezulu elinconyiwe akumele lidlule ku-1093 ¡æ. Inokumelana nokugqwala okuhle kakhulu. Inokumelana nokugqwala okuhle kakhulu ku-nitric acid ebandayo noma i-nitric acid ebilayo ene-concentration engu-70%, ukumelana nokugqwala okuhle kwe-hydrochloric acid ne-sulfuric acid kanye nokumelana nokugqwala kwengcindezi okuhle kakhulu. Ukuqina kwe-Brinell cishe ku-210.
12. Ikhoneli 600
Ama-alloys esisekelo se-nickel (77% nickel, 15% chromium kanye ne-7% yensimbi). Izinga lokushisa eliphezulu elinconyiwe akumele lidlule ku-1093 ¡æ. Inamandla aphezulu ngaphansi kwezimo zokushisa okuphezulu futhi ngokuvamile isetshenziselwa okokusebenza ukuxazulula izinkinga zokugqwala kwengcindezi. Emazingeni okushisa aphansi, inezindawo ezinhle kakhulu zokucubungula ezifanayo. Ukuqina kwe-brinell cishe ku-150.
13. I-Monel 400
(ukushisa okutuswayo okuphezulu okuqhubekayo okuqhubekayo kokusebenza kwethusi okungu-30% kanye ne-nickel akufanele kudlule ku-815 ¡æ. Ngaphandle kwama-acid oxidizing aqinile, inokumelana nokugqwala okuhle kakhulu kuma-acid amaningi nezisekelo. Kulula ukukhiqiza imifantu yokugqwala kwengcindezi ku-fluoric acid, i-mercuric chloride kanye nemidiya ye-mercury, ngakho-ke ayifanele imidiya engenhla Isetshenziswa kakhulu kumishini yokukhiqiza i-hydrofluoric acid imayelana ne-120.
14. I-Titanium
Izinga lokushisa eliphezulu elinconyiwe alikho ngaphezu kuka-1093 ¡æ. Inokumelana nokugqwala okuhle kakhulu ngaphansi kwezimo zokushisa eziphezulu. Kwaziwa kahle ukuthi imelana nokugqwala kwe-chloride ion futhi inokumelana nokugqwala okuhle kakhulu kwe-nitric acid ezingeni lokushisa elibanzi kanye nebanga lokuhlushwa. I-Titanium ayivamisile ukusetshenziswa ezixazululweni eziningi ze-alkali futhi ifanele izimo ze-oxidation. Ukuqina kwe-Brinell cishe ku-216.
Okungeyona into ye-gasket yensimbi
1. Irabha Yemvelo NR
Inokumelana nokugqwala okuhle ku-asidi ebuthakathaka, i-alkali, usawoti kanye ne-chloride, kodwa ukumelana nokugqwala okungekuhle kuwoyela ne-solvent. Akunconywa ukuthi isetshenziswe ku-ozone medium. Izinga lokushisa elinconywayo lokusebenza ngu-57 ¡æ ~ 93 ¡æ.
2. I-Neoprene Cr
I-Neoprene iwuhlobo lwerabha yokwenziwa, elungele ukumelana nokugqwala okuphakathi nezixazululo ze-asidi, i-alkali nosawoti. Inokumelana nokugqwala okuhle kuwoyela wentengiso kanye namafutha. Kodwa-ke, ukumelana nokugqwala kwama-acid oxidizing aqinile, ama-hydrocarbon anephunga elimnandi nama-hydrocarbon ane-chlorinated akulungile. Izinga lokushisa elinconywayo lokusebenza ngu-51 ¡æ ~ 121 ¡æ.
3. Irabha ye-Nitrile butadiene NBR
Irabha ye-Cyano butadiene iwuhlobo lwerabha yokwenziwa, elungele ukumelana nokugqwala okuhle kuwoyela, i-solvent, i-hydrocarbon enamakha, i-alkaline hydrocarbon, uwoyela negesi yemvelo ebangeni lokushisa elibanzi. Inokumelana nokugqwala okuhle kwe-hydroxide, usawoti kanye ne-acid engathathi hlangothi. Kodwa-ke, endaweni eqinile ye-oxidizing, ama-hydrocarbons e-chlorinated, ama-ketone nama-lipids, ukumelana nokugqwala kwawo kubi. Izinga lokushisa elinconywayo lokusebenza ngu-51 ¡æ ~ 121 ¡æ.
4. I-Fluororubber
Inokumelana nokugqwala okuhle kuwoyela, uphethiloli, isixazululo se-chloride, ama-aromatic and lipid hydrocarbons nama-acids aqinile, kodwa ayiwafanele ama-amine, ama-lipids, ama-ketone nesitimu. Izinga lokushisa elinconywayo lokusebenza ngu-40 ¡æ ~ 232 ¡æ.
5. Irabha yokwenziwa ye-chlorosulfonated polyethylene
Inokumelana nokugqwala okuhle kwezixazululo ze-asidi, i-alkali nosawoti, futhi ayithinteki esimweni sezulu, ukukhanya,, i-ozone kanye nezibaso ezithengiswayo (ezifana nodizili nophalafini). Kodwa-ke, ayiwafanele ama-hydrocarbon anephunga elimnandi, ama-hydrocarbon ane-chlorinated, i-chromic acid ne-nitric acid. Izinga lokushisa elinconywayo lokusebenza ngu-45 ¡æ ~ 135 ¡æ.
6. Irabha ye-Silicone
Inokumelana nokugqwala okuhle emoyeni oshisayo. Irabha ye-Silicone ayithinteki ukukhanya kwelanga ne-ozone. Nokho, ayilungele umusi, ama-ketones, ama-hydrocarbon anephunga elimnandi nama-lipid hydrocarbon.
7. Irabha ye-ethylene propylene
Inokumelana nokugqwala okuhle kwe-asidi eqinile, i-alkali, usawoti kanye ne-chloride. Nokho, ayiwafanele amafutha, izinyibilikisi, ama-hydrocarbon anephunga elimnandi nama-hydrocarbon. Izinga lokushisa elinconywayo lokusebenza ngu-57 ¡æ ~ 176 ¡æ.
8. I-graphite
Izinto ezibonakalayo ziyi-graphite yonke impahla ngaphandle kwe-resin noma i-inorganic matter, engahlukaniswa ngezinto ze-graphite ezinezici zensimbi noma ezingenazo. Izinto zingahlanganiswa ukuze zikhiqize ama-gasket amapayipi anobubanzi obungaphezu kuka-600mm. Inokumelana nokugqwala okuhle kakhulu kwama-asidi amaningi, izisekelo, usawoti, izinhlanganisela eziphilayo, izixazululo zokudlulisa ukushisa ngisho nezixazululo zokushisa okuphezulu. Ayikwazi ukuncibilika, kodwa izoncibilika ngaphezu kuka-3316 ¡æ. Ngaphansi kwezimo zokushisa eziphakeme, impahla kufanele isetshenziswe ngokucophelela endaweni eqinile ye-oxidizing. Ngokungeziwe kuma-gaskets, i-material ingasetshenziswa futhi ukwenza amateyipu asontayo angewona awensimbi kuma-filler nama-spiral amanxeba gaskets.
9. I-Ceramic fiber, i-ceramic fiber yakheka emgqeni
Kuyinto enhle kakhulu yezinto ze-gasket ezifanele izinga lokushisa eliphezulu nezimo eziphansi zokucindezela kanye nezimo ze-flange ezikhanyayo. Izinga lokushisa elinconywayo lokusebenza ngu-1093 ¡æ, futhi itheyiphu yokusonta engeyona eyensimbi ku-gasket yesilonda ingenziwa.
10 polytetrafluoroethylene
Ihlanganisa izinzuzo zezinto eziningi ze-gasket zepulasitiki, okuhlanganisa ukumelana nezinga lokushisa kusuka - 95 ¡æ ~ 232 ¡æ. Ngaphezu kwe-fluorine yamahhala nezinsimbi ze-alkali, inokumelana nokugqwala okuhle kakhulu kumakhemikhali, izinyibilikisi, ama-hydroxides nama-asidi. Impahla ye-PTFE ingagcwaliswa ngengilazi ukunciphisa uketshezi olubandayo kanye nokukhasa kwe-PTFE.
Isikhathi sokuthumela: Nov-02-2021
