A halin yanzu, akwai nau'ikan safofin hannu masu juriya da yawa a kasuwa.Shin ingancin safofin hannu masu jurewa yana da kyau?Wanne ne ba shi da sauƙin lalacewa?Yadda za a zaɓa don guje wa zaɓi mara kyau?
Wasu safofin hannu masu jurewa a kasuwa suna da kalmar “CE” da aka buga a gefen baya.Shin "CE" yana nufin takamaiman nau'in takaddun shaida?
Alamar "CE" ita ce takaddun aminci, wanda ake ɗaukarsa azaman takardar izinin fasfo don masana'antun don buɗewa da shiga kasuwar tallace-tallace ta Turai.CE tana nufin haɗin kan Turai (CONFORMITE EUROPEENNE).Asalin CE shine ma'anar ƙa'idar Turai, don haka ban da ƙa'idar en don yanke safofin hannu masu juriya, waɗanne ƙayyadaddun bayanai dole ne a bi?
Safofin hannu na kariya don hana raunin kayan aikin injiniya dole ne su bi EN 388, sabon sigar ita ce lambar sigar 2016, da ma'aunin ANSI/ISEA 105 na Amurka, sabon sigar kuma shine 2016.
A cikin waɗannan ƙayyadaddun ƙayyadaddun bayanai guda biyu, ma'anar matakin juriya na yanke ya bambanta.
Safofin hannu masu jurewa da aka tabbatar ta hanyar en misali za su sami babban tsarin garkuwa tare da kalmomin “EN 388” a saman.Lambobin bayanai 4 ko 6 da haruffan Ingilishi a ƙasan ƙaton tsarin garkuwa.Idan bayanan lambobi 6 ne da haruffan Ingilishi, yana nuna cewa ana amfani da sabon ƙayyadaddun EN 388: 2016, kuma idan lambobi 4 ne, yana nuna cewa an yi amfani da ƙayyadaddun tsohuwar 2003.
Lambobin 4 na farko suna da ma'ana iri ɗaya, waɗanda sune "juriya sawa", "yanke juriya", "juriya", da "juriya juriya".Mafi girman bayanai, mafi kyawun halaye.
Harafin Ingilishi na biyar kuma yana nuna “yanke juriya”, amma ma'aunin gwajin ya bambanta da ma'aunin gwaji na bayanan na biyu, kuma hanyar nuna matakin juriya da yanke shima ya bambanta, wanda za a bayyana dalla-dalla daga baya.
Harafin Turanci na shida yana nuna "juriya mai tasiri", wanda kuma haruffan Ingilishi ke nunawa.Koyaya, lamba na shida zai bayyana ne kawai lokacin da aka gudanar da gwajin juriyar tasiri.Idan ba a yi shi ba, koyaushe za a sami lambobi 5.
Ko da yake an yi amfani da sigar 2016 na ƙa'idar en fiye da shekaru huɗu, har yanzu akwai tsofaffin nau'ikan safar hannu a kasuwa.Safofin hannu masu juriya waɗanda sababbi da tsoffin masu amfani suka tabbatar duk ƙwararrun safofin hannu ne, amma ana ba da shawarar sosai a zaɓi safofin hannu masu juriya tare da bayanan lambobi 6 da haruffa Turanci don nuna halayen safofin hannu.
Tare da zuwan babban adadin sababbin kayan, ya zama dole don iya rarraba su da kyau don nuna juriya na yanke na safofin hannu.A cikin sabuwar hanyar rarrabawa, babu bambanci tsakanin A1-A3 da asali na 1-3, amma an kwatanta A4-A9 da ainihin 4-5, kuma ana amfani da matakan 6 don rarraba matakan asali biyu.Yanke juriya yana aiwatar da ƙarin rarrabuwa da magana.
A cikin ƙayyadaddun ANSI, ba kawai matakin magana ba, har ma ana haɓaka matakan gwaji.Asali, an yi amfani da ma'aunin ASTM F1790-05 don gwaji, wanda ya ba da izinin gwaji akan kayan aikin TDM-100 (ma'aunin gwaji da ake kira TDM TEST) ko kayan CPPT (ma'aunin gwaji da ake kira COUP TEST).Yanzu ana amfani da ASTM F2992-15, kuma TDM kawai aka yarda.TEST yana gudanar da gwaji.
Menene bambanci tsakanin GWAJIN TDM da JUYIN RUWA?
TEST COUP yana amfani da madauwari ruwa tare da matsi na aiki na 5 Copernicus don jujjuya yankan Laser akan kayan safar hannu, yayin da TDM TEST yana amfani da kai mai yanke don danna kayan safar hannu a wani matsi na aiki daban, baya da gaba a ƙimar 2.5 mm/s.yankan Laser
Kodayake sabon ma'aunin EN 388 yana buƙatar amfani da gwajin COUP TEST da TDM TEST matakan gwaji guda biyu, amma a ƙarƙashin TEST COUP, idan babban aikin rigakafin Laser yankan albarkatun ƙasa ne, da alama madauwari za ta zama baƙar fata, idan yankan Laser. Bayan dala 60, tip ɗin kayan aiki ya zama mara hankali bayan lissafi, kuma TDM TEST ya zama tilas.
Dole ne a lura cewa idan TDM TEST aka za'ayi don wannan kyakkyawan Laser yankan resistant safar hannu, sa'an nan wuri na biyu na tabbatarwa za a iya rubuta da "X".A wannan lokacin, juriya da aka yanke kawai ana nuna shi ta harafin Ingilishi a wuri na biyar..
Idan ba don kyawawan safofin hannu masu juriya ba, da wuya kayan kayan safofin hannu su dushe mai yankan GWAJIN COUP.A wannan lokacin, ana iya barin TDM TEST, kuma ana sanya “X” akan matsayi na biyar na tsarin tabbatarwa.
Don safofin hannu marasa yanke tare da kyakkyawan aiki, ba a yi gwajin TDM ko gwajin juriya ba.↑ The albarkatun kasa na yanke-resistant safofin hannu tare da kyakkyawan aiki.An gudanar da gwajin TDM, amma ba a yi gwajin COUP da gwajin juriya ba.
Lokacin aikawa: Nuwamba-24-2021