Valve sealing surface material m zazzabi matsakaici kwatanta tebur bawul gwajin matsa lamba ya kamata ya bi ka'idodin 16 da al'amuran da ke buƙatar kulawa.

Valve sealing surface material m zazzabi matsakaici kwatanta tebur bawul gwajin matsa lamba ya kamata ya bi ka'idodin 16 da al'amuran da ke buƙatar kulawa.

Valve sealing surface abu m zafin jiki matsakaici kwatanta tebur
abu
Dace da zafin sabis
Hanyar amfani
Butyl roba Buna-N
-23 ℃ ~ 82 ℃
Short -23 ℃ ~ 120 ℃
Butadiene roba yana da kyau kai malleability, sa juriya da hydrocarbon juriya Properties, kamar yadda wani general abu za a iya amfani da ruwa, injin, acid, gishiri, alkali, lipid, man shanu, na'ura mai aiki da karfin ruwa man, glycol da sauran kafofin watsa labarai, amma ba zai iya. a yi amfani da shi a **, ketone, nitrate da wuraren hydrocarbon mai fluorinated.
YiBing roba
EPDM
- 40 ℃ ~ 135 ℃
Short -50 ℃ ~ 170 ℃
Ethylene propylene roba ne mai kyau duniya roba roba, za a iya amfani da ruwan zafi tsarin, abin sha, kiwo kayayyakin, methyl ketone, barasa, nitrate da glycerol da sauran kafofin watsa labarai, amma ba za a iya amfani da a hydrocarbon tushen man fetur, inorganic al'amarin ko sauran ƙarfi.
Fluoroprene Neoprene
-29 ℃ ~ 135 ℃
Short -35 ℃ ~ 113 ℃
Fluoroprene roba za a iya amfani da a acid, man fetur, mai, man kaushi da sauran kafofin watsa labarai, yana da kyau juriya ga anhydrous ammonia da barasa yi.
Fluorinated roba
Viton
-29 ℃ ~ 205 ℃
Fluorinated roba ne mai kyau juriya ga hydrocarbon tushen mai, man gas da sauran man fetur kayayyakin na fluorinated roba, dace da ruwa, mai, iska, acid da sauran kafofin watsa labarai, amma ba za a iya amfani da tururi, a kan 82 ℃ ruwan zafi ko mayar da hankali. tsarin alkali.
Silicone roba
Silikoni
-40 ℃ ~ 180 ℃
Silicone roba juriya zuwa high zafin jiki, low zazzabi, sinadaran kwanciyar hankali, yadu amfani a cikin karfi acid, rauni alkali da abinci masana'antu.
Farashin PTFE
- 10 ℃ ~ 200 ℃
Polytetrafluoroethylene yana da kaddarorin sinadarai na barga, fitaccen farfajiyar da ba danko ba, mai kyau mai kyau da kaddarorin rigakafin tsufa, ana amfani da su sosai a cikin acid mai ƙarfi, tushe mai rauni, oxidants mai ƙarfi da sauran kafofin watsa labarai masu lalata.
Gwajin matsin lamba na Valve zai bi ka'idodi da al'amuran da ke buƙatar kulawa a cikin tsarin samar da bawul na 16 abu ne mai rikitarwa kuma mai sauƙi, samar da bawuloli na yau da kullun kamar bawul ɗin ƙofar, bawul ɗin ball, bawul ɗin duniya, bawul ɗin malam buɗe ido, bawul ɗin duba, sake zagayowar samarwa gabaɗaya. a cikin kwanaki uku, kyawawan bawul ɗin masana'anta dole ne su bi ta gwaji iri-iri, gami da * * mahimmancin gwaji shine don gwadawa. Gwajin matsin lamba shine don gwada ko ƙimar matsa lamba na bawul ɗin zai iya ɗauka ya cika buƙatun ƙa'idodin samarwa, gwajin matsa lamba na gaba ɗaya dole ne ya bi ka'idodi masu zuwa da abubuwan da ke buƙatar kulawa:
Samar da bawuloli shine tsari mai rikitarwa da sauƙi. Zagayowar samar da bawuloli na yau da kullun kamar bawuloli na ƙofa, bawul ɗin ball, bawuloli na globe, bawuloli na malam buɗe ido da bawul ɗin duba gabaɗaya a cikin kwanaki uku. Dole ne a gwada samar da bawuloli ta hanyar gwaje-gwaje daban-daban na ayyuka, daga cikinsu mafi mahimmancin gwaji shine gwajin matsa lamba. Gwajin matsin lamba shine don gwada ko ƙimar matsa lamba na bawul ɗin zai iya ɗaukar ta cika buƙatun ƙa'idodin samarwa, gwajin matsa lamba na gaba ɗaya dole ne ya bi ka'idodi masu zuwa da abubuwan da ke buƙatar kulawa:
(1) A ƙarƙashin yanayi na al'ada, ba a yin gwajin ƙarfin bawul ɗin ba, amma jikin bawul da murfin bawul bayan gyare-gyare ko lalata lalacewa ya kamata a yi gwajin ƙarfi. Don bawul ɗin aminci, matsa lamba na yau da kullun da matsin lamba da sauran gwaje-gwaje ya kamata su bi ƙayyadaddun ƙayyadaddun bayanai da tanadin hanyoyin da suka dace.
(2) Ya kamata a gwada ƙarfin da maƙarƙashiya na bawul ɗin. Ƙananan matsi bawul tabo duba 20%, kamar rashin cancanta ya kamata 100% dubawa; Ya kamata a duba 100% madaidaicin bawuloli da matsa lamba.
(3) Yayin gwajin, ya kamata a shigar da bawul ɗin a cikin hanyar dubawa mai sauƙi.
(4) Don bawuloli a cikin nau'in haɗin welded, hatimin conical ko hatimin O-ring za a iya amfani da shi don gwajin matsa lamba lokacin da gwajin matsa lamba tare da farantin makafi ba zai yiwu ba.
(5) Gwajin hydraulic zai yi ƙoƙarin kawar da iska mai bawul.
(6) Ya kamata a ƙara matsa lamba a hankali yayin gwajin, kuma ba a yarda da matsa lamba da sauri ba.
(7) Gwajin ƙarfi da lokacin gwajin hatimi gabaɗaya shine mintuna 2-3, mahimmanci da bawuloli na musamman yakamata su wuce mintuna 5. Ƙananan lokacin gwajin bawul ɗin diamita na iya zama daidai gajarta, lokacin gwajin bawul ɗin diamita mafi girma na iya zama daidai tsayi. Yayin gwajin, idan ana shakka, ana iya tsawaita lokacin gwajin. Yayin gwajin ƙarfin, kar a ƙyale jiki da murfin su yi gumi ko zubowa. Gwajin hatimi, bawul ɗin gabaɗaya sau ɗaya ne kawai, bawul ɗin aminci, bawul ɗin matsa lamba da sauran bawul ɗin bawul suna buƙatar aiwatar da sau biyu. A lokacin gwajin, ƙananan matsa lamba, manyan diamita marasa mahimmanci bawuloli da bawuloli tare da tanadin da ke ba da izinin ɗigowa an yarda su sami alamar yabo; Saboda buƙatun daban-daban na bawuloli na duniya, bawul ɗin tashar wutar lantarki, bawul ɗin ruwa da sauran bawul ɗin, abubuwan buƙatun ya kamata a aiwatar da su daidai da ƙa'idodin da suka dace.
(8) Ba'a rufe bawul ɗin maƙura don gwajin hatimi, amma yakamata ya zama gwajin ƙarfi da tattarawa da gwajin hatimin gasket.
(9) A cikin gwajin matsa lamba, ƙarfin rufe bawul kawai yana ba da damar ƙarfin jikin mutum na yau da kullun don rufewa; Ba a yarda a yi amfani da karfi tare da levers ko wasu kayan aikin ba (sai dai magudanar wuta). Lokacin da diamita na abin hannu ya fi 320mm, ana barin mutane biyu su rufe shi tare.
(10) Bawul ɗin da ke da hatimin babba ya kamata a fitar da shi daga cikin marufi don gwajin hatimi. Bayan an rufe hatimin babba, duba ko akwai yabo. Lokacin gwaji da iskar gas, cika akwati da ruwa don dubawa. Kada ka ƙyale hatimin babba ya kasance a wuri na kusa lokacin da ake tattara gwajin matsewa.
(11) inda bawul ɗin ke da na'urar tuƙi, lokacin gwada hatiminsa, yakamata a yi amfani da na'urar tuƙi don rufe bawul ɗin don gwajin hatimi. Hakanan ya kamata a yi amfani da na'urar tuƙi ta hannu don rufe gwajin hatimin bawul.
(12) Gwajin ƙarfin ƙarfi da gwajin hatimi da aka sanya akan babban bawul ɗin bawul ɗin bawul, a cikin babban ƙarfin bawul da gwajin hatimi; Lokacin da aka buɗe babban kashe bawul, ya kamata kuma a buɗe shi daidai.
(13) Yayin gwajin ƙarfin bawul ɗin ƙarfe na simintin ƙarfe, yakamata a yi amfani da hammatar jan ƙarfe don taɓa jikin bawul da murfin bawul don bincika ko akwai yabo.
(14) Lokacin da aka gwada bawul ɗin, ba a ba da izinin man fetur ɗin da ke rufe bawul sai dai an ba da izinin sanya mai.
(15) A lokacin gwajin matsa lamba na bawul, matsa lamba na makafi a kan bawul ɗin bai kamata ya yi girma da yawa ba, don guje wa lalacewar bawul ɗin kuma ya shafi tasirin gwajin (idan bawul ɗin ƙarfe na simintin yana da ƙarfi sosai). zai lalace).
(16) Bayan an gama gwajin matsa lamba na bawul, ya kamata a cire ruwan da ke cikin bawul ɗin a cikin lokaci kuma a goge shi da tsabta, kuma a yi rikodin gwajin.