Muna 2020, kwakaitika tsaona yekurapa kupisa muUnited States, izvo zvakakonzera kufa kwevashandi vaviri.Chikonzero chaive chekuti nzira dzekuchengetedza Lock Out Tag Out (LOTO) uye Restricted Space Code haina kuteverwa.
Iyi tsaona inotiudza kuti kupisa kupisa iindasitiri ine njodzi kwazvo, kupisa kurapwa hakugone kuparadzaniswa nemvura, gasi, magetsi, uye zvimwe zvinhu zvine njodzi zviri kwese kwese.Mimwe midziyo kushandiswa zvisina kunaka, kusangwarira, uye zvichingodaro zvinogona kukonzera njodzi inouraya.Sezvo kuchengetedzwa kwezvakatipoteredza uye zvinodiwa zvemhando zvichiwedzera uye zvakanyanya kuomarara, mabhizinesi anowedzera kutenga uye kushandisa echokwadi mhepo yekudzima mavira, ayo anosanganisira kuchengetedzwa kwevacuum furnaces uye kuchengetedzwa kwegasi inert.Tsaona iyi inotidzosera kune imwe nyaya.Tsaona yacho yakaitika na9:30 mangwanani musi waMay 17, 2001, apo mushandi wezvokugadzirisa zvinhu akanga achishanda patambo yehydraulic muchoto chevacuum.Choto chakavhurika kudivi uye chine tangi yekudzima 6 tsoka muhupamhi uye 9 tsoka kudzika.Kana iyo workpiece yaiswa mu quenching tank lift, choto chinozadzwa neinert gasi kana nitrogen pane vacuum.Kuti ugadzirise mutsara we hydraulic, tangi yemafuta yakadhindwa mazuva matatu apfuura uye mota yakaiswa pazasi pe tangi rekudzima.Mugadziri wacho akawira mutangi rakanga risina chinhu pabasa uye mukuru wake akanzwa kushevedzwa kwebetsero ndokukwira muchitofu kuti aedze kumubatsira.Vamwe vakanzwa kushevedzwa kwerubatsiro vakasvika panzvimbo iyi vakawana muchengeti akazvambarara parift nasupervisor akarara padivi pake.Panguva ino, choto chekutonga chinovhurwa uye argon uye nitrogen switch inobatidzwa.Kusunungurwa kwegesi kunowanzodzorwa nevhavha ye solenoid panguva yekupisa kupisa.Zvakanga zvisina kujeka kuti zvakanga zvatanga nei kana kuti rudzii rwegasi rakanga richipinzwa muchoto.Gare gare zvapupu zvakati switch mumagetsi ekudzora kabati yakanongedzera kune argon gasi.Vashandi vezvokuchengetedza uye vatariri vakanga vasina kupfeka ngowani kana kuti tambo dzekuchengetedza, uye panguva iyo bazi rezvemoto rakasvika kunonoka kuti vaende navo kuchipatara, mushumo wezvitunha wakataura kuti chikonzero chekufa kwaiva kufemesa.
Loto, iyo inopereterwa kukiya-tagout.OSHA inzira inoenderana neOSHA yekudzivirira kukuvara nekuzviparadzanisa nevamwe kana kukiya mamwe masimba ane ngozi.Yakave ichishandiswa zvakanyanya munyika, uye ikozvino yakabuda panguva chaiyo muChina.Kune zvakare tsananguro dzakakodzera muSafety Production Law.Kune zvakare zvakatemwa zvinopihwa mune chete yenyika inosungirwa kupisa kupisa indasitiri standard GB 15735 2012, Chengetedzo uye Hutsanana Zvinodiwa zveMetal Heat Kurapa Kugadzira Maitiro.Chinangwa chayo ndechekudzivirira vashandi kubva mukukuvadzwa kwesimba remuchina, kusanganisira mushandi wese anoda kubata kana kushanda padhuze nemuchina kana midziyo ine kana yakachengetwa simba.Iyo chaiyo nzira ndeyekuvhara simba paunenge uchiisa iyo \ kuchengetedza \ kugadzirisa \ kuongorora \ yekuchenesa midziyo, uye kuratidza kuti basa rekugadzirisa riri kuitwa ne tag kana kukiya kusipo, uye kuyedza kunze mushure mekuita pamusoro pebasa.
Nguva yekutumira: Jun-19-2021