So Metumi De Flat Sling Di Dwuma Wɔ Choke Hitch Nsiesiei Mu?

Ɛsɛ sɛ adwumayɛfo a wɔyɛ rigging ma adesoa a ɛte sɛ kurukuruwa so—dade paipu, kɔnkrit adum, anaa rebar a wɔaboaboa ano. No flat sling  a wɔfa fi rack no so no tenten ne nea ɛfata. Nanso adesoa no nni mmeae biara a wɔakyerɛkyerɛ mu a ɛde bata ho. Rigger no kyekyere sling no twa adesoa no ho, fa n’ani biako fa foforo no mu, na ɔde cinches no denneennen. Eyi yɛ choke hitch —na ebetumi ayɛ rigging ano aduru a etu mpɔn, nanso sɛ wɔyɛ no yiye nkutoo a.

 

Lishenflex  ayɛ synthetic flat slings bɛboro mfe aduonu, na yɛn afuw mu osuahu kyerɛ sɛ choke hitches ka sling nhyehyɛe ahorow a wɔtaa de di dwuma ɔkwammɔne so no ho. Ɛte sɛ nea choke hitch no yɛ mmerɛw, nanso sɛnea wɔde bedi dwuma ahobammɔ mu no gyina ntease a wobɛte tumi a wɔtew so, choke angle a ɛfata, ne sling tebea so. Sɛnea nnwuma mu nsɛm  a efi wɔn a wɔyɛ sling a ɛne EN 1492-1 hyia kyerɛ no, choke hitch tumi dodow yɛ 0.8—a ɛkyerɛ sɛ sling a wɔahyɛ sɛ ɛyɛ tɔn 1 wɔ vertical lift mu no betumi asoa kilogram 800 pɛ wɔ choke hitch mu dwoodwoo .

 

Dɛn Ne Choke Hitch?

Choke hitch yɛ rigging nhyehyɛe a wɔde sling no kyekyere adesoa no ho, na wɔde sling no ano biako fa aniwa anaa fitting a ɛne no bɔ abira no mu. Afei wɔma adesoa no so, na ɛma agyan no mu yɛ den wɔ adesoa no ho. Eyi ma cinching effect  a ɛbɔ adesoa no ho ban na ɛmma ɛnhwe ase .

 

Sɛnea wɔakyerɛkyerɛ mu wɔ OSHA’s Guidance on Safe Sling Use , choker hitch fata ma nnesoa a ɛyɛ den sɛ wɔbɛkari pɛ anaasɛ wɔde bɛbɔ ho ban denam straight vertical lift so . Choker hitch no kura adesoa no yiye denam ne ho a ɛkyekyere no denneennen no so. Nanso, OSHA bɔ kɔkɔ pefee sɛ wɔ choke hitch mu no, ɛsɛ sɛ choke point no wɔ sling no nipadua nkutoo so, na ɛnyɛ splice anaa fitting so da .

 

no  Rigging Asoɛe  ka sɛ choke hitch no yɛ sling hitches atitiriw abiɛsa no mu biako, na ɛka vertical ne basket hitches ho, na wɔtaa de di dwuma bere a adesoa no nni mmeae a ɛfata a wɔde bata ho no .

 

Tumi a Wɔtew So wɔ Choke Hitch mu

Ade a ɛho hia sen biara wɔ choke hitch a wɔde di dwuma mu ne tumi a wɔtew so. A sling’s rated adwumayɛ adesoa anohyeto no korɔn sen biara wɔ vertical straight pull mu. Sɛ wɔde di dwuma wɔ choke hitch mu a, tumi a ɛwɔ mu no so tew kɛse.

 

Sɛnea OSHA Guidance on Safe Sling Use kyerɛ no , adesoa a wɔahyɛ sɛ wɔmfa mma sling a ɛwɔ choke hitch mu no, nea ɔyɛ sling no na ɛkyerɛ, na egyina choke no anim so. OSHA ka sɛ choke hitch capacity no di dwuma sɛ choke no anim yɛ digrii 120 anaa nea ɛboro saa a. Sɛ choke angles nnu digrii 120 a, ɛsɛ sɛ wɔtew adesoa a wɔahyɛ no so kɛse sɛnea sling yɛfo no nyansahyɛ ahorow kyerɛ no .

 

Tumi ntotoho nhyehyɛe (a egyina EN 1492-1 polyester flat sling so):

 

Faako a wonyae: EN 1492-1 tumi ho nsɛm a efi CEREX ne Mennens hɔ

 

Sɛnea pon no kyerɛ no, choke hitch factor (KL) yɛ 0.8 wɔ EN 1492-1 ase, a egyina hɔ ma tumi a ɛso tew 20% sɛ wɔde toto vertical hitch ho a.

 

Bere bɛn na Choke Hitch Fata?

Choke hitch fata wɔ tebea pɔtee bi mu:

 

1.Loads a enni defined attachment points —cylindrical adesoa, paipu, rebar bundles, ne kɔnkrit adum

 

2.Nnesoa a ɛsɛ sɛ wokura mu yiye —a esiw sɛ ɛbɛhwe ase bere a wɔrema so anaasɛ wɔredannan no

 

3.Single-leg lifts —baabi a basket hitch ntumi nyɛ yiye

 

Sɛnea kyerɛ no Medeer Lifting , choke hitch no ho wɔ mfaso ma nnesoa a wɔde kura mu yiye nanso entumi nnyina pintinn te sɛ vertical hitch na sɛ wɔde di dwuma wɔ ɔkwan a ɛmfata so a ebetumi asɛe sling no . Ɛsɛ sɛ wɔde slings a wɔayɛ sɛ wɔde bedi dwuma wɔ choke hitch nkutoo na wɔde di dwuma wɔ nhyehyɛe yi mu, na ɛsɛ sɛ wɔhwɛ sɛ sling no asɛe ansa na wɔde adi dwuma biara ne bere a wɔde adi dwuma akyi.

 

Adeyɛ a eye sen biara:  Wɔ choke hitch mu no, ɛsɛ sɛ wɔde choke point no si sling no nipadua so—ɛnyɛ wɔ aniwa, splice, anaa fitting no so da . Ɛsɛ sɛ choke no anim yɛ 120° anaa nea ɛboro saa na ama wɔakura 0.8 tumi factor no nyinaa mu.

 

Ahobammɔ Ho Nneɛma Titiriw a Ɛsɛ sɛ Wosusuw Ho

Mfa choke hitch nni dwuma sɛ:

 

● Sling no atwitwa, asɛe, anaasɛ wɔapam no asɛe wɔ baabi a ɛbɛsoa choke no

 

● Choke angle no nnu 120° a enni tumi a ɛtew so a ɛne no hyia

 

● Adesoa no anoano yɛ nnam a ebetumi atwitwa nhama a wɔde bɔ adesoa no mu (fa nneɛma a ɛbɔ ho ban di dwuma wɔ ntwea so di dwuma) .

 

● Wɔakyinkyim akuturuku no anaasɛ wɔakyeakyea—eyi ma adwennwen a ɛnyɛ pɛpɛɛpɛ ba

 

● Ahyɛnsode a ɛkyerɛ sɛ sling no nni hɔ anaasɛ wontumi nkenkan—worentumi nhwɛ sɛ tumi a wɔahyɛ sɛ ebetumi ayɛ no yɛ nokware

 

OSHA bara pefee sɛ:

 

● Nhama a wɔde nhama ayɛ (wɔmma kwan mma wɔmfa nhama a wɔde kyekyere anaa twitwiw so bɛtew so anaasɛ wɔbɛtrɛw mu) .

 

● Sling a wode bedi dwuma wɔ choke hitch mu a choke point no wɔ splice anaa fitting so

 

● Adesoa a wɔde home wɔ sling no so

 

● Sɛ wotwe sling fi adesoa bi ase bere a adesoa no da sling no so

 

Lishenflex ’s lab testing si so dua sɛ slings a asɛe nketenkete mpo—te sɛ localized abrasion anaasɛ edge cuts—nya ɔsɛe ntɛmntɛm wɔ choke hitch nhyehyɛe ahorow mu esiane ahoɔden a ɛwɔ choke point no mu nti. Eyi nti na ansa na wɔde adi dwuma ne nhwehwɛmu a wɔtaa yɛ wɔ ASME B30.9 biara mu no ho hia titiriw ma slings a wɔde di dwuma wɔ choke hitches mu.

 

Nhwehwɛmu a Wɔhwehwɛ wɔ Choke Hitch a Wɔde Di Dwuma Ho

Ɛsɛ sɛ wɔtaa hwɛ slings a wɔde di dwuma wɔ choke hitches mu sen nea wɔde di dwuma wɔ vertical lifts nkutoo mu no. ASME B30.9  hwehwɛ sɛ wɔyɛ nhwehwɛmu wɔ akwan abiɛsa so:

 

Nneɛma atitiriw a wɔde yi fi hɔ wɔ ASME B30.9 ase  ma slings a ɛyɛ tratraa a wɔde di dwuma wɔ choke hitches mu:

 

● Npam a abubu anaasɛ asɛe wɔ adesoa-soa nhama mu

 

● Acid anaa ɔhyew a ɛyɛ hyew

 

● Adanse a ɛkyerɛ sɛ ɔhyew sɛe ade

 

● Ntokuru anaa ntetewmu a ɛma asaawa a ɛwɔ mu no da adi—titiriw wɔ baabi a ɛtwetwe no

 

● Abrasive wear a ɛboro so

 

● Nhama a ɛwɔ sling nipadua no mu—wɔabara nhama a wɔde hyɛ mu wɔ OSHA ase

 

● Kɔla a ɛsakra anaasɛ ɛyɛ mmerɛw a ɛkyerɛ sɛ nnuru anaa UV asɛe

 

Nsɛm a Wɔaboaboa Ano ne Nyansahyɛ a Mfaso

Wobetumi de sling a ɛyɛ tratraa  adi dwuma wɔ choke hitch nhyehyɛe mu, nanso ɛsɛ sɛ wɔde ahwɛyiye ne ahokokwaw kɔ application no ho.

 

Nneɛma atitiriw a wɔde kɔ:

 

1.Capacity reduction yɛ non-negotiable —a choke hitch tew WLL to 80% wɔ vertical tumi ase EN 1492-1

 

2.Choke angle nsɛm —kura 120° anaa nea ɛboro saa ma 0.8 factor a edi mũ; tew tumi a ɛwɔ anim nketewa so wɔ ɔkwan a nea ɔyɛ no akwankyerɛ biara so

 

3.Never choke wɔ splice anaa fitting —ɛsɛ sɛ choke point no wɔ sling nipadua no so

 

4.Hwɛ ansa na wode adi dwuma ne bere a wode bedi dwuma akyi —choke hitches concentrate stress; hwɛ sɛ ebia nneɛma asɛe wɔ mpɔtam hɔ anaa

 

5.Fa corner protectors —ma nnesoa a ano yɛ nnam

 

Lishenflex  yɛ polyester flat slings a ɛwɔ aniwa a wɔahyɛ no den ne tumi agyiraehyɛde a ɛda adi pefee a wɔde kɔla ahyɛ mu, a ɛne EN 1492-1 ne ASME B30.9 gyinapɛn ahorow hyia. Wɔsɔ yɛn nneɛma hwɛ ma hitch nhyehyɛe nyinaa, a choke hitches ka ho, na yɛde nhwehwɛmu ntetee ma de boa rigging nneyɛe a ahobammɔ wom.

 

Sɛ wuhia mmoa a wode bɛkyerɛ sɛ ebia wo mprempren flat slings no fata ma choke hitch applications —anaasɛ wuhia akwankyerɛ wɔ tumi akontaabu ho ma wo lift geometry pɔtee no —yɛsrɛ wo fa email kɔ sales@lishenflex.com , na yɛn mfiridwuma kuw no de mmoa bɛma mmiako mmiako.