Kwatanta madaidaicin alaƙa tsakanin ma'aunin matsin lamba na daidaitattun Amurka, ma'auni na Jafananci da ma'auni na ƙasa.

Tsarin juzu'i na gama gari na bawul: 1bar = 0.1MPa = 1KG = 14.5PSI = 1kgf/m2

Matsin lamba (PN) da madaidaitan fam na Amurka (Lb) duka maganganun matsa lamba ne.Bambanci shine cewa matsa lamba da suke wakilta yayi daidai da yanayin zafi daban-daban.Tsarin PN Turai yana nufin madaidaicin matsa lamba a 120 ℃, yayin da ma'aunin Class American yana nufin matsi mai dacewa a 425.5 ℃.

Don haka, a cikin musayar injiniyanci, canjin matsa lamba ba za a iya aiwatar da shi kawai ba.Misali, canjin matsa lamba na CLAss300 # yakamata ya zama 2.1MPa, amma idan ana la'akari da yawan zafin jiki na amfani, matsa lamba daidai zai tashi, wanda yayi daidai da 5.0MPa bisa ga gwajin zafin jiki da matsa lamba na kayan.
Akwai nau'ikan tsarin bawul guda biyu: ɗayan shine tsarin "matsa lamba mara izini" wanda Jamus ke wakilta (ciki har da China) kuma bisa la'akari da matsi na aiki da aka yarda a yanayin zafi na al'ada (100 ° C a China da 120 ° C a Jamus).Ɗaya shine "tsarin matsa lamba" wanda Amurka ke wakilta da kuma izinin aiki mai izini a wani zazzabi.
A cikin yanayin zafin jiki da tsarin matsa lamba na Amurka, sai dai 150Lb, wanda ya dogara ne akan 260 ° C, wasu matakan suna dogara ne akan 454 ° C. Ƙwararrun da aka yarda da No. 25 carbon karfe bawul na 150lb (150PSI = 1MPa) a 260 ℃ ne 1MPa, da kuma halatta danniya a al'ada zafin jiki ne da yawa fiye da 1MPa, game da 2.0MPa.
Sabili da haka, gabaɗaya magana, nau'in matsa lamba na ƙima wanda ya dace da daidaitaccen daidaitaccen 150Lb na Amurka shine 2.0MPa, kuma matsakaicin matsa lamba na ƙima wanda ya dace da 300Lb shine 5.0MPa, da sauransu. tsarin canji.
Bugu da ƙari, a cikin ma'auni na Jafananci, akwai tsarin "K", kamar 10K, 20K, 30K, da dai sauransu. Ma'anar wannan tsarin matsi yana daidai da na tsarin ma'auni na Birtaniya, amma sashin ma'auni shine. tsarin awo.
Saboda yanayin yanayin matsa lamba na ƙididdigewa da nau'in matsin lamba sun bambanta, babu wani takamaiman rubutu a tsakanin su.Dubi Tebura don maƙasudin rubutu tsakanin ukun.
Teburin kwatanci don jujjuya fam (Lb) da ma'aunin Jafananci (K) da matsa lamba na ƙima (bincike)
Lb - K - matsa lamba na ƙima (MPa)
150Lb——10K——2.0MPa
300Lb——20K——5.0MPa
400Lb——30K——6.8MPa
600Lb——45K——10.0MPa
900Lb——65K——15.0MPa
1500Lb——110K——25.0MPa
2500Lb——180K——42.0MPa
2500Lb——180K——42.0MPa
3500Lb——250K——56.0MPa
4500Lb——320K——76.0MPa

Teburin 1 Kwatancen tebur tsakanin CL da matsa lamba na ƙima PN