Hannun hannu suna taka muhimmiyar rawa wajen samar da aikin aiki. Duk da haka, hannaye kuma sassa ne masu sauƙin rauni, suna lissafin kusan kashi 25% na adadin raunin masana'antu. Wuta, matsanancin zafin jiki, wutar lantarki, sinadarai, tasiri, yankewa, shanyewa, da cututtuka duk na iya haifar da lahani ga hannaye. Raunin injina kamar tasiri da yanke sun fi kowa yawa, amma raunin wutar lantarki da raunin radiation sun fi tsanani kuma suna iya haifar da nakasa ko ma mutuwa. Don hana hannun ma'aikata rauni yayin aiki, rawar safofin hannu na kariya yana da mahimmanci musamman.
Ma'auni na duba safofin hannu masu kariya
A cikin Maris 2020, Tarayyar Turai ta buga sabon ma'auni:TS EN ISO 21420: 2019Gaba ɗaya buƙatun da hanyoyin gwaji don safofin hannu masu kariya. Masu kera safofin hannu masu kariya dole ne su tabbatar da cewa kayan da ake amfani da su don samar da samfuransu ba su shafi lafiyar masu aiki ba. Sabuwar ma'aunin EN ISO 21420 ya maye gurbin ma'aunin EN 420. Bugu da ƙari, EN 388 yana ɗaya daga cikin ƙa'idodin Turai don safofin hannu masu kariya na masana'antu. Kwamitin Turai don daidaitawa (CEN) ya amince da sigar EN388: 2003 akan Yuli 2, 2003. An sake fitar da EN388:2016 a cikin Nuwamba 2016, wanda ya maye gurbin EN388: 2003, kuma ƙarin sigar EN388: 2016 + A1: 2018 an sake duba shi a cikin 2018.
Ma'auni masu alaƙa don safofin hannu masu kariya:
TS EN 388: 2016 Matsayin injina don safofin hannu masu kariya
TS EN ISO 21420: 2019 Gabaɗaya buƙatun da hanyoyin gwaji don safofin hannu masu kariya
TS EN 407 don safofin hannu masu tsayayya da wuta da zafi
TS EN 374 Abubuwan buƙatun don juriyar shigar sinadarai na safofin hannu masu kariya
TS EN 511 Ka'idodin ka'idoji don safofin hannu masu tsayayya da sanyi da ƙarancin zafi
TS EN 455 Safofin hannu masu kariya don tasiri da yanke kariya
Safofin hannu masu kariyahanyar dubawa
Don kare amincin mabukaci da kuma guje wa asarar dillalai da ke haifar da tunowa saboda lamuran ingancin samfur, duk safofin hannu masu kariya da aka fitar zuwa ƙasashen EU dole ne su wuce waɗannan binciken:
1. Gwajin aikin injin kan-site
EN 388: 2016 Bayanin tambari
| Mataki | Mataki na 1 | Mataki na 2 | Mataki na 3 | Mataki na 4 |
| Sanya juyin juya hali | 100 rpm | Karfe 500 na yamma | Karfe 2000 na yamma | 8000pm |
1.1 Juriya na abrasion
| Mataki | Mataki1 | Mataki2 | Mataki3 | Mataki4 | Mataki na 5 |
| Coupe Anti-cut gwajin index ƙimar | 1.2 | 2.5 | 5.0 | 10.0 | 20.0 |
| Mataki | Mataki na 1 | Mataki na 2 | Mataki na 3 | Mataki na 4 |
| Mai jure hawaye(N) | 10 | 25 | 50 | 75 |
| Mataki | Mataki na 1 | Mataki na 2 | Mataki na 3 | Mataki na 4 |
| Mai jure huda(N) | 20 | 60 | 100 | 150 |
| Mataki | Darasi A | Matakin B | Matakin C | Darasi D | Matakin E | Matakin F |
| TMD(N) | 2 | 5 | 10 | 15 | 22 | 30 |
Gwajin yankan TDM na amfani da ruwa don yanke kayan tafin hannu a tsayin daka. Yana gwada tsawon tafiya na ruwa lokacin da ya yanke samfurin a ƙarƙashin kaya daban-daban. Yana amfani da madaidaitan tsarin lissafi don ƙididdige ( gangarawa) don samun adadin ƙarfin da ake buƙatar amfani da shi don yin tafiya ta ruwa 20mm. Yanke samfurin ta hanyar.
Wannan gwajin sabon abu ne da aka ƙara a cikin EN388:2016 sigar. An bayyana matakin sakamako azaman AF, kuma F shine matakin mafi girma. Idan aka kwatanta da EN 388: 2003 gwajin gwaji, gwajin TDM na iya samar da ingantattun alamun juriya na aiki.
5.6 Tasirin juriya (EN 13594)
Hali na shida yana wakiltar kariyar tasiri, wanda gwajin zaɓi ne. Idan an gwada safar hannu don kariyar tasiri, ana ba da wannan bayanin ta harafin P azaman alama ta shida da ta ƙarshe. Ba tare da P, safar hannu ba shi da kariya ta tasiri.
2. Duban bayyanarna safofin hannu masu kariya
-Manufacturer sunan
- safar hannu da girma
- Takaddun shaida CE
- EN misali tambarin zane
Ya kamata waɗannan alamun su kasance masu iya karantawa a duk tsawon rayuwar safar hannu
3. Safofin hannu masu kariyamarufi dubawa
- Suna da adireshin masana'anta ko wakilin
- safar hannu da girma
- CE alamar
- Matsayin aikace-aikacen/amfani ne da aka yi niyya, misali "don ƙaramin haɗari kawai"
- Idan safar hannu kawai yana ba da kariya ga takamaiman yanki na hannu, dole ne a faɗi hakan, misali "kariyar dabino kawai"
4. Safofin hannu masu kariya suna zuwa tare da umarni ko littattafan aiki
- Suna da adireshin masana'anta ko wakilin
- Sunan safar hannu
- Girman girman samuwa
- CE alamar
- kulawa da umarnin ajiya
- Umarni da iyakancewar amfani
- Jerin abubuwan da ke haifar da allergies a cikin safar hannu
- Jerin duk abubuwan da ke cikin safar hannu da ake samu akan buƙata
- Suna da adireshin ƙungiyar takaddun shaida waɗanda suka tabbatar da samfurin
- Ma'auni na asali
5. Abubuwan buƙatu don rashin lahanina safofin hannu masu kariya
- Dole ne safar hannu ya ba da iyakar kariya;
- Idan akwai sutura a kan safar hannu, kada a rage aikin safofin hannu;
- darajar pH ya kamata ya kasance tsakanin 3.5 da 9.5;
- Ya kamata abun cikin Chromium (VI) ya kasance ƙasa da ƙimar ganowa (<3ppm);
- Ya kamata a gwada safofin hannu na roba na dabi'a akan sunadaran da za a iya cirewa don tabbatar da cewa basu haifar da rashin lafiyan halayen ga mai sawa ba;
- Idan an ba da umarnin tsaftacewa, matakan aikin ba dole ba ne a rage su ko da bayan matsakaicin adadin wankewa.
Ma'aunin EN 388: 2016 na iya taimaka wa ma'aikata su tantance wane safofin hannu ke da matakin kariya daga haɗarin injiniyoyi a cikin yanayin aiki. Alal misali, ma'aikatan gine-gine na iya fuskantar haɗarin lalacewa da raguwa kuma suna buƙatar zaɓar safar hannu tare da juriya mafi girma, yayin da ma'aikatan sarrafa karfe suna buƙatar kare kansu daga yanke raunuka daga yankan kayan aiki ko fashewa daga gefuna masu kaifi, wanda ke buƙatar zabar safar hannu tare da shi. matakin mafi girma na juriya yanke. safar hannu
Lokacin aikawa: Maris 16-2024