DIN, JIS, GB, ASME: Jagora Mai Amfani Ga Ma'aunin Farantin Sama na Granite

Masu siye suna kwatanta faranti na dutse daga masu kaya daban-daban sau da yawa suna fuskantar matsala mai natsuwa: faranti biyu na iya da'awar daidaiton "Mataki na 0" ko "Mataki na AA" amma har yanzu ba sa nufin abu ɗaya, saboda suna nuni ga ƙa'idodi daban-daban na ƙasa tare da dabarun haƙuri daban-daban. Wannan jagorar ta bayyana abin da manyan ƙa'idodi suka ƙayyade da kuma dalilin da yasa bambancin yake da mahimmanci lokacin da kake neman kayan aiki.

Me yasa babu wani mizani ɗaya na duniya

An daidaita faranti na saman dutse bisa ga jurewar lanƙwasa waɗanda girman faranti ya kai girman faranti - faranti mai girman 1600mm da faranti mai girman 300mm ba za su iya ɗaukar haƙuri iri ɗaya ba. Ƙasashe daban-daban sun ƙirƙiro dabarunsu don wannan sikelin, gabaɗaya a daidai lokacin da ake daidaita masana'antu:

• Jamus — DIN 876 wataƙila ita ce ma'aunin da aka fi ambato a duniya, wanda ke bayyana daidaito maki 00, 0, 1, da 2, tare da maki 00 mafi tsauri. DIN 875 da DIN 650 sun rufe yanayin kayan aikin granite masu alaƙa.
• Amurka — Ma'aunin Tarayya GGG-P-463c da kuma ASME B89.3.7 na zamani sun bayyana maki AA, A, da B ga faranti na saman, a tarihi, yawancin dakunan gwaje-gwajen metrology na Amurka da shagunan injina sun daidaita da su.
• Japan — JIS B 7513 ya kafa tsarin matsayinsa, wanda aka saba amfani da shi ta hanyar kayan aikin da aka gina wa masana'antun Japan ko aka fitar da su, musamman a cikin sarkar samar da kayayyaki ta semiconductor.
• Kasar Sin — Ka'idojin GB/T, wadanda suka kusanci ka'idojin kasa da kasa a cikin 'yan shekarun nan yayin da kayan aikin da aka yi da kasar Sin ke kara yin hidima ga kasuwannin fitarwa.
• Ƙasar Ingila — BS 817, Rasha — GOST 10905, da Faransa — ƙa'idodin NF sun kammala jerin ƙa'idodin da har yanzu ake amfani da su a aikace dangane da ƙasar da kayan aikin ya fito ko inda aka nufa.

Abin da ya bambanta tsakaninsu a zahiri

Babban rashin jituwa tsakanin ma'auni ba falsafa ba ne - dabarar lissafi ce da kowannensu ke amfani da ita don ƙididdige matsakaicin karkacewar lanƙwasa bisa ga tsawon diagonal na farantin. Farantin DIN 876 Grade 0 da farantin JIS Grade 1 masu girma iri ɗaya na iya ƙarewa da juriya waɗanda suke kusa amma ba iri ɗaya ba. Ga yawancin aikace-aikacen masana'antu, bambancin ba shi da mahimmanci. Ga dakunan gwaje-gwajen metrology waɗanda ke yin ma'aunin da za a iya bi, ko kuma ga kayan aikin da aka yi niyya ga abokin ciniki wanda ke buƙatar takardar shaidar DIN ko JIS a bayyane, ba haka bane.

Wannan shine dalilin da yasa, lokacin da ake samun kuɗikayan aikin dutseDon fitarwa, yana da mahimmanci a tambayi mai kaya wace takardar shaidar daidaitawa ce ainihin take nuni - ba wai kawai lambar maki da ta bayyana a kan takardu ba. Ba za a iya tabbatar da da'awar "Mataki 0" ba tare da wani takamaiman ma'auni ba.

Bin diddigi: ɓangaren da yake da sauƙin tsallakewa

Takardar shaidar daidaitawa tana da inganci kamar sarkar da ke bayanta. Kayan aikin da ake amfani da su don auna farantin - matakin lantarki, autocollimator, na'urar auna laser - yakamata a daidaita shi ta hanyar wata cibiyar nazarin yanayin ƙasa da aka amince da ita, kuma ya kamata a iya gano daidaiton zuwa matsayin farko na ƙasa. A aikace, wannan yana nufin neman:

1. Takardar shaidar daidaitawa don takamaiman farantin ko ɓangaren, tana bayyana wanne ma'auni (DIN/JIS/GB/ASME/da sauransu) aka yi amfani da shi.
2. Takardar shaidar daidaitawa ta kayan aikin aunawa da aka yi amfani da su, wacce wata cibiyar nazarin halittu ta amince da ita ta bayar.
3. Bayyanar rashin tabbas na ma'auni, ba kawai maki na wucewa/faɗuwa ba.

Tsallake wannan sarka ita ce yadda da'awar "tabbatar da maki 0" wani lokacin ke zama ta hanyar masana'anta ba tare da wani tabbaci na ɓangare na uku ba kwata-kwata - a zahiri ba zamba ba ne, amma ba ma'ana mai ma'ana.

Bayani mai amfani ga ƙungiyoyin sayayya

Idan kayan aikinka an yi niyya ne ga kasuwannin fitarwa da yawa, sau da yawa yana da kyau a nemi daidaitawa biyu - misali, duka lambobin DIN 876 da JIS B 7513 - maimakon ɗaukar cewa wani ma'auni yana fassara zuwa wani. Yana da tsada sosai a lokacin daidaitawa, amma yana kawar da rashin tabbas ga abokin ciniki na ƙarshe, musamman a masana'antu kamar semiconductor da masana'antar kera motoci inda sashen inganci na ƙarshe na mai siye zai nemi takaddun takamaiman misali.