Nau'in matsa lamba (PN), Class American misali fam matakin (Lb), wata hanya ce ta nuna matsa lamba, bambanci shi ne cewa matsa lamba da suke wakilta ya dace da yanayin zafi daban-daban, tsarin PN Turai yana nufin matsa lamba a 120 ° C matsi mai dacewa, yayin da CLass American Standard yana nufin madaidaicin matsi a 425.5 ° C. Saboda haka, a cikin musayar injiniya, ba zai yiwu a yi jujjuya matsa lamba kawai ba.Misali, CLass300 yakamata ya zama 2.1MPa ta hanyar jujjuyawar matsa lamba mai sauƙi.Duk da haka, idan ana la'akari da zafin jiki na aiki, matsa lamba mai dacewa zai karu.Dangane da gwajin juriya na zafin jiki da matsa lamba na abu Ma'aunin yana daidai da 5.0MPa.
Akwai nau'ikan tsarin bawul guda biyu: ɗaya shine "tsarin matsin lamba" wanda ya hada da China) dangane da matsakaiciyar aiki a ɗakina (digiri 100 a cikin Jamus).Ɗaya shine "tsarin zafin jiki da matsa lamba" wanda Amurka ke wakilta, wanda aka wakilta ta matsi na aiki da aka yarda a wani zafin jiki.A cikin tsarin zafin jiki da matsa lamba na Amurka, sai dai 150Lb, wanda ya dogara da digiri 260, wasu matakan suna dogara ne akan digiri 454..Danniya da aka yarda da aji na 150-psi (150psi = 1MPa) No. 25 carbon karfe bawul ne 1MPa a 260 digiri, da kuma yarda danniya a dakin zafin jiki ne yafi girma fiye da 1MPa, game da 2.0MPa.Sabili da haka, gabaɗaya magana, matakin matsa lamba na ƙima wanda ya dace da Standard 150Lb na Amurka shine 2.0MPa, kuma matakin matsa lamba na ƙima wanda ya dace da 300Lb shine 5.0MPa, da sauransu. dabaran canza matsa lamba .
PN lambar ce mai alaƙa da matsa lamba da lambobi ke wakilta, kuma ita ce madaidaicin lamba ta zagaye don tunani.PN ita ce lambar MPa mai jure matsi kusan daidai da zafin jiki na yau da kullun, wanda shine matsi na ƙididdiga da aka saba amfani dashi.Bawuloli na kasar Sin.Don sarrafa bawuloli tare dacarbon karfe bawuljiki, yana nufin matsakaicin matsi na aiki da aka yarda lokacin amfani da shi ƙasa da 200 ° C;don jikkunan bawul ɗin ƙarfe na simintin gyare-gyare, yana nufin matsakaicin matsi na aiki da aka yarda lokacin amfani da shi ƙasa da 120 ° C;Matsakaicin izinin aiki na aiki don aikace-aikacen ƙasa da 250°C.Lokacin da zafin jiki na aiki ya tashi, ƙarfin juriya na jikin bawul zai ragu.Bawul ɗin ma'auni na Amurka yana bayyana matsa lamba na ƙididdiga a cikin fam, wanda shine sakamakon lissafin sakamakon haɗuwa da zafin jiki da matsa lamba na wani ƙarfe , wanda aka lasafta bisa ga ma'auni na ANSI B16.34.Babban dalilin da ya sa ajin fam da matsa lamba na ƙididdigewa ba su zama wasiku ɗaya zuwa ɗaya ba shi ne, yanayin zafin ajin fam ɗin da matsi na ƙima sun bambanta.Yawancin lokaci muna amfani da software don ƙididdigewa, amma kuma muna buƙatar sanin yadda ake amfani da tebur don bincika ma'auni.Japan galibi tana amfani da ƙimar K don nuna matakin matsa lamba.Don matsa lamba na iskar gas, a kasar Sin, gabaɗaya muna amfani da ma'aunin nauyi "kg" don kwatanta (maimakon "jin"), kuma naúrar tana da kg.Naúrar matsa lamba daidai shine “kg/cm2″, kuma kilogiram na matsa lamba ɗaya yana nufin cewa kilogiram na ƙarfi yana aiki akan santimita murabba'i ɗaya.Hakazalika, daidai da ƙasashen waje, don matsa lamba na iskar gas, rukunin da aka saba amfani da shi shine "psi", kuma sashin shine "1 fam/inch2", wanda shine "fam a kowace murabba'in inch".Cikakken sunan Ingilishi shine Pounds kowane inci murabba'i.Amma an fi amfani da shi don kiran ƙungiyar ta kai tsaye, wato, fam (Lb.), wanda shine ainihin Lb.Wannan shine ƙarfin fam ɗin da aka ambata a baya.Ana iya ƙididdige shi ta hanyar canza duk raka'a zuwa raka'a ma'auni: 1 psi=1 fam/inch2 ≈0.068bar, 1 bar≈14.5psi≈0.1MPa, ƙasashe irin su Turai da Amurka ana amfani da psi azaman naúrar.A cikin Class600 da Class1500, akwai ma'auni daban-daban guda biyu masu dacewa da ma'aunin Turai da ma'aunin Amurka.11MPa (daidai da nauyin kilo 600) shine tsarin tsarin Turai, wanda aka ƙayyade a cikin "ISO 7005-1-1992 Flanges Karfe";10MPa (daidai da Class Class 600-pound) shine tsarin tsarin Amurka, wanda shine tsari a cikin ASME B16.5.Saboda haka, ba za a iya cewa gaba ɗaya nauyin nauyin kilo 600 ya dace da 11MPa ko 10MPa, kuma ka'idodin tsarin daban-daban sun bambanta.
Akwai galibi nau'ikan tsarin bawul guda biyu: ɗaya shine tsarin “matsi na ƙima” wanda Jamus ke wakilta (ciki har da ƙasata) bisa la’akari da matsi na aiki da aka yarda a zafin jiki (digiri 100 a ƙasata da digiri 120 a Jamus).Ɗaya shine tsarin "zazzabi da matsa lamba" wanda Amurka ke wakilta, wanda aka wakilta ta hanyar matsi na aiki da aka yarda a wani zafin jiki.A cikin tsarin zafin jiki da matsa lamba na Amurka, sai dai 150Lb, wanda ya dogara da digiri 260, wasu matakan suna dogara ne akan digiri 454.benchmark.Misali, damuwa da aka yarda na 150Lb.25 carbon karfe bawul ne 1MPa a 260 digiri, da kuma yarda danniya a dakin zafin jiki ya fi girma fiye da 1MPa, wanda shi ne game da 2.0MPa.Sabili da haka, gabaɗaya magana, matakin matsa lamba na ƙima wanda ya dace da Standard 150Lb na Amurka shine 2.0MPa, kuma matakin matsa lamba na ƙima wanda ya dace da 300Lb shine 5.0MPa, da sauransu. dabaran canza matsa lamba .
Tunda ma'aunin zafin jiki na matsi na ƙididdigewa da ƙimar matsa lamba sun bambanta, babu ƙaƙƙarfan rubutu tsakanin su biyun.Ana nuna mugunyar wasiƙun da ke tsakanin su biyun a cikin tebur.
Lokacin aikawa: Agusta-31-2023