Zan iya Haɗa Majajjawa Flat Biyu Tare Don Tsawaita Tsawon?

Ma'aikatan damfara suna shirya ɗagawa. Kayan yana da tsayi ƙafa 15, amma kawai lebur majajjawa akwai taku 10. Mai kulawa yana buƙatar dogon majajjawa-da sauri. Jarabawar haɗa gajerun majajjawa guda biyu tare kusan ba za a iya jurewa ba.

Amma mai kula da damfara ya fi sani. A cewar OSHA 1910.184 (c) (2) , duk lokacin da aka yi amfani da kowane majajjawa, ba za a gajarta majajjawa da kulli ko ƙulli ko wasu na'urori na wucin gadi ba. Hakazalika ASME B30.9 yana buƙatar kada a karkatar da majajjawa, gajarta, tsawaita, ɗaure su cikin kulli, ko haɗa su da kulli.

Lishenflex ya kasance yana kera majajjawa lebur ɗin roba tsawon shekaru da yawa, kuma ƙwarewar filinmu ta nuna cewa haɗin gwiwar majajjawa mara kyau shine babban dalilin rigingimu . Hanya mai sauƙi na ɗaure majajjawa biyu tare na iya rage ƙarfi da kashi 50% ko fiye, haifar da masifun gazawar da ke ƙarƙashin kaya.

1. Me Yasa Shiga Majajjawa Kai tsaye Yana Da Hatsari

1.1 Knots da Girth Hitches - Rage Ƙarfin Ƙarfi

Hanyar da ta fi dacewa ta haɗa majajjawa guda biyu ita ce kulli ko ƙulli (ƙafar lark). Dukansu hanyoyin suna haifar da lanƙwasa masu kaifi waɗanda ke maida hankali kan ƙaramin yanki. Dangane da gwaje-gwajen da aka yi magana a cikin al'ummar hawan dutsen Burtaniya, ƙwanƙwasa girth na iya rage ƙarfin majajjawa da kusan kashi 50% . Ko da a ƙarƙashin Ayyukan ɗagawa da Dokokin Kayan Aiki (LOLER), an rage raguwar aƙalla 20% lokacin da aka yi tare da majajjawa na diamita daidai.

SpanSet yayi kashedin cewa duk wani nau'in majajjawa - majajjawar yanar gizo, majajjawa zagaye, igiya waya, sarka - bai kamata a dunƙule ba. Yin daurin aure zai sa sassan da aka ƙulla su yanke juna su yi lahani, wanda a ƙarshe zai iya haifar da haɗari.

1.2 Tasirin 'Pulley' da Yanke Aiki

Lokacin da aka haɗa majajjawa guda biyu kuma aka sanya su ƙarƙashin kaya, wurin haɗin yana aiki kamar juzu'i. Majajjawa suna motsawa da juna a ƙarƙashin babban tashin hankali, suna haifar da rikici da yanke aikin da zai iya raba zaruruwa. SpanSet ya faxi a sarari cewa majajjawa da aka ƙulla suna haifar da ɓarna da ɓarna wanda a ƙarshe zai iya haifar da haɗari. Wannan shine dalilin da ya sa ka'idojin OSHA da ASME sun haramta shiga ta hanyar knotting-lalacewar tana ci gaba kuma sau da yawa ba a iya gani har sai rashin nasara.

1.3 Ka'idojin Masana'antu sun haramta shi

Bisa ga WAC 296-155-55825 , masu daukan ma'aikata kada su rage ko tsawaita majajjawa ta hanyar dunƙule ko murɗawa. Wannan ya shafi majajjawar yanar gizo na roba musamman. Ƙarƙashin ASME B30.9 , kulli a kowane bangare na majajjawa dalilai ne don cirewa nan da nan daga sabis. Wannan yana nufin majajjawa da aka dunƙule-ko da sau ɗaya-dole ne a soke shi.

Jagoran binciken Kamfanonin Mazzella ya lissafa 'ƙulli a kowane bangare na majajjawa' a matsayin yanayin da ke buƙatar cirewa daga sabis, kuma ya ƙara da cewa ba za a karkaɗe majajjawa ba, ɗaure cikin kulli, ko haɗa su da kulli. Hakazalika, Ƙa'idodin Ƙarfafawa da Ƙa'idodin Kayan Aiki (LOLER) sun hana kulli a matsayin hanyar gajarta ko haɗa majajjawa.

2. Abin da Ma'auni suka ce

3. Hanya madaidaiciya don Tsawaita Tsawon Maƙiyi

Idan dole ne a haɗa biyu majajjawa lebur don cimma tsayin da ake buƙata, hanya mafi aminci ita ce ta amfani da kayan ɗagawa da aka keɓe.

3.1 Zazzagewa

Shackles sune mafi yawan hanyoyin da ake amfani da su don haɗuwa da majajjawa. Kowane idon majajjawa yana haɗe zuwa fil ɗin shackle ko baka, yana ƙirƙirar wurin haɗi mai ƙima. TS EN 1492-1 ya bayyana cewa ana iya amfani da majajjawa mai lebur ɗin lebur tare da kayan aiki, in dai an ƙididdige kayan aikin da kyau kuma sun dace da majajjawa.

Mahimmin buƙatun lokacin amfani da mariƙin :

• Shackle WLL dole ne daidai ko wuce WLL na majajjawa

• Girman ƙuƙumi dole ne ya dace da idanun majajjawa ba tare da ɗaure ba

• Dole ne a ɗaure fil ɗin daurin da kyau kuma a kiyaye shi

3.2 Joker Hooks da Sadaukarwa Masu Haɗi

SpanSet yana ba da shawarar Joker Hook azaman amintaccen madadin don tsawaita tsayin majajjawa. Joker Hook yana aiki azaman mai haɗawa don haɗa tsayi biyu na majajjawa zagaye ko slings ɗin yanar gizo tare, yana ba ku damar ƙirƙirar majajjawa mai tsayi lokacin da ake buƙata. Yana da ƙarfin ɗagawa, lambobin launi, kuma ya dace da ka'idodin EN 1492.

3.3 Haɗi mai laushi (Lokacin da Izinin)

Liftex da sauran masana'antun suna ba da damar haɗi mai laushi kawai lokacin da aka haɗa haɗin zuwa kayan dacewa da kayan aiki da kyau-ba majajjawa-zuwa-sling kai tsaye ba. Hakanan ma'aunin GB/T 25854 na kasar Sin yana buƙatar kimanta duk abubuwan haɗin haɗin gwiwa tare da dacewa da WLL na majajjawa, kuma dole ne a bincika dukkan sassan don lalacewa da lalacewa kafin amfani.

4. Me zai faru idan kun yi amfani da majajjan Knotted?

• Dole ne a soke majajjawa : Dangane da ASME B30.9, kullin yana buƙatar cirewa daga sabis.

• Bayanin OSHA : OSHA a kai a kai tana kiran masu daukar ma'aikata don amfani da majajjawa da aka ƙulla. A cikin aƙalla bayanan da aka rubuta, an ba da ƙididdiga don majajjawar yanar gizo na roba wanda aka ɗaure a cikin kulli.

• Ƙarfin ƙarfi : Ƙarƙashin girth yana rage ƙarfi da 20-50%, dangane da hanyar haɗin gwiwa.

• Haɗarin gazawar bala'i : juzu'i da yanke aikin a kulli na iya haifar da gazawar kwatsam a ƙarƙashin kaya.

5. Takaitawa da Shawarwari Na Aiki

Haɗuwa da biyu majajjawa lebur ta hanyar ƙulli ko girth hitching an hana su ta OSHA, ASME, EN 1492-1, da LOLER . Aikin yana rage ƙarfin majajjawa da kashi 20-50%, yana haifar da lalacewa mai ci gaba daga gogayya, kuma yana fallasa masu aiki zuwa haɗarin gazawar bala'i.

Mabuɗin ɗaukar hoto:

1. Kada ku taɓa kulli ko girth-hitch majajjawa tare - an hana shi ta ma'auni da yawa kuma yana rage ƙarfi sosai.

2. Yi amfani da kayan aikin da aka keɓe - sarƙaƙƙiya, Joker Hooks, ko wasu masu haɗin masu ƙima sune kawai hanyoyin aminci

3. Match ratings — duk kayan haɗin haɗin dole ne su sami WLL daidai ko mafi girma fiye da WLL na majajjawa.

4. Bincika haɗin kai -duba cewa kayan aikin sun dace da idanun majajjawa kuma ba su da lahani

5. Horar da ƙungiyar ku -tabbatar da duk masu damfara sun san haramcin haɗin gwiwa

Lishenflex yana kera slings na polyester zuwa EN 1492-1 da ka'idodin ASME B30.9, tare da bayyananniyar alamar iya aiki mai launi da ɗaukar kaya. Muna kuma bayar da kayan aikin rigging-ciki har da sarƙaƙƙiya da masu haɗin kai-wanda aka ƙera don amintaccen haɗin majajjawa.

Idan kuna buƙatar taimako don zaɓar kayan haɗin haɗin da ya dace don ayyukan ɗagawa-ko kuna buƙatar taimako don ƙayyade hanyar da ta dace don tsawaita tsayin majajjawa — da fatan za a aika imel zuwa sales@lishenflex.com , kuma ƙungiyarmu ta fasaha za ta ba da goyon baya ɗaya-on-daya.