BS1139 Scaffold Tubular

Hlau scaffolding — Ntu 1: Tubes — Tshooj 1.1 Specification rau steel raj

Loj: 48.3mm(Kev kam rau siab: ntxiv /-0.5mm)

Thickness: 3.2mm thiab 4.{3}}mm( kam rau ua: ntxiv /-10 feem pua )

Length: 0.5-7.3m (txhua qhov ntev yog ua haujlwm tau)

Embossing Marking, Paint Marking. Tsis Marking.

HS code:730840

CO, FORM E, FTA, CCIC.

BS1139 Scaffold Tubular Kev Xa Khoom

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6 Kev xa khoom xa tuaj

6.1 Tubes tuaj yeem raug xa tawm los ntawm cov chaw tsim khoom siv raj raws li dov lossis nrog cov txheej tiv thaiv. Kev tiv thaiv corrosion tuaj yeem siv los ntawm cov chaw tsim khoom, lossis cais tom qab 3).

Yog tias cov raj yuav tsum tau xa raws li dov nrog cov ntsiab lus silicon tsawg (saib 4.1), qhov no yuav tsum tau teev nyob rau hauv qhov kev txiav txim.

Qhov twg cov raj yuav tsum tau muab nrog kev tiv thaiv corrosion ib ntus, qhov no yuav tsum tau teev nyob rau hauv kev txiav txim.

6.2 Qhov twg cov raj muaj kev tiv thaiv los ntawm kub dip galvanizing, txheej txheej yuav tsum ua raws li A.2. Qhov twg cov raj muaj kev tiv thaiv los ntawm cov xim pleev xim, cov txheej txheem yuav tsum ua raws li B.2.

Thov nrog kuv tham kom ntxaws cov khoom nrog kom muaj nuj nqis thiab loj,

Hu rau kuv, Elva (mob/whatsapp/wechat) 0086-15122519420

or send me email: elvazhao@lefinsteel.com

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BS1139 Scaffold Tubular kuaj thiab ntawv pov thawj

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7 Kev xeem thiab ntawv pov thawj

7.1 Kev ntsuam xyuas thiab cov chaw tsim khoom tswj Cov raj yuav tsum raug kuaj thiab tswj kev tsim khoom thaum lub sij hawm tsim khoom kom paub tseeb tias lawv ua raws li cov cai ntawm nqe 4, 5 thiab 6.

7.2 Qhov twg cov hlab yog kub dip galvanized, qhov ua tau zoo ntawm cov txheej yuav tsum raug soj ntsuam los ntawm kev ntsuam xyuas raws li daim ntawv txuas ntxiv A. Qhov twg cov raj muaj kev tiv thaiv los ntawm cov xim txheej, qhov ua tau zoo ntawm cov txheej yuav tsum raug soj ntsuam raws li daim ntawv txuas B.

7.3 Cov kev ntsuam xyuas no thiab cov chaw tsim khoom tswj xyuas yog lub luag haujlwm ntawm cov chaw tsim khoom thiab cov khoom siv ntawm kev tiv thaiv corrosion.

7.4 Daim ntawv pov thawj ntawm kev ua raws li tus neeg yuav khoom thov hauv qhov kev txiav txim, cov chaw tsim khoom, cov txheej txheem tiv thaiv txheej txheem los yog tus neeg muag khoom yuav tsum muab daim ntawv pov thawj ntawm kev ua raws cai hais tias cov raj ua raws li cov kev cai ntawm British Standard.

BS1139 Metal Scaffolding Mechanical properties Tensile Strength Yield Stress Elongation

BS1139 Scaffold Tubular Zinc txheej

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Annex A (Yuav tsum tau) Cov kev xav tau thiab kev tswj xyuas zoo ntawm zinc txheej

A.1 Yam khoom thiab daim ntawv thov

Cov ntawv txuas ntxiv no qhia txog qhov zoo ntawm zinc txheej ntawm kub-dip galvanized steel hlab ua raws li tus qauv British no, cov kev ntsuam xyuas rau kev kuaj xyuas ua raws li cov kev cai no.

A.2 Cov yam ntxwv ntawm cov txheej txheem

A.2.1 Cov tsos ntawm txheejyuav tsum zoo ib yam tsis muaj qhov khoob hauv txheej zinc. Nws yuav tsum tau dawb los ntawm spikes, uas tej zaum yuav raug tshem tawm mechanically.

A.2.2 Thickness ntawm txheejThaum kuaj raws liA.3.2, lub thickness ntawm txheej yuav tsum tsis pub tsawg tshaj 40 µm. Kev ntsuas thickness yuav tsum tau ua nyob rau sab nraud nkaus xwb.

A.2.3 Kev txuas ntxiv ntawm cov txheejKev txuas ntxiv ntawm cov txheej txheem yuav tsum tau suav tias yog qhov txaus siab yog tias cov raj muaj qhov pom kev pom qhov pom tau raws li qhov yuav tsum tau ua ntawm A.3.2.

A.3 Kev xeem

A.3.1 Cov tsos ntawm cov txheejCov txheej yuav tsum tau kuaj pom qhov muag thiab manually kom ntseeg tau tias nws ua tau raws li A.2.1.

A.3.2 Thickness ntawm txheej

A.3.2.1 Kev xaiv txoj kev Cov txheej tuab yuav raug soj ntsuam los ntawm txoj kev sib nqus los yog txoj kev gravimetric. Yog hais tias ib txoj kev tshwj xeeb tsis tau teev nyob rau hauv qhov kev txiav txim, kev xaiv ntawm txoj kev yuav tsum yog nyob rau ntawm qhov kev xaiv ntawm lub raj tsim los yog galvanizer.

A.3.2.2 Magnetic method

A.3.2.2.1 Lub hauv paus ntsiab lus Lub thickness yog ntsuas los ntawm kev ntsuas qhov cuam tshuam ntawm zinc txheej ntawm cov hlau nplaum.

Kev xeem yuav tsum tau ua raws li BS 5411-11, thiab tsuas yog cov ntsiab lus tseem ceeb tau muab rau ntawm no.

A.3.2.2.2 Cov Khoom Siv Cov cuab yeej siv tau xaiv yuav tsum tsim nyog rau qhov loj ntawm lub raj thiab txheej thickness tau teev tseg.

A.3.2.2.3 Calibration Lub ntsuas yuav tsum tau calibrated ntawm ib daim ntawm ungalvanized raj, thiab rechecked nquag thaum siv.

A.3.2.2.4 Cov txheej txheem Siv tib cov txheej txheem raws li tau siv nyob rau hauv lub calibration, coj 10 nyeem ntawv kis thoob plaws ntawm lub raj nyob rau hauv kev ntsuam xyuas.

A.3.2.2.5 Qhov tseeb Calibration thiab kev khiav hauj lwm ntawm lub ntsuas yuav tsum yog xws li hais tias lub txheej thickness yuav txiav txim siab nyob rau hauv 10 feem pua ntawm nws cov thickness tiag tiag.

A.3.2.3 Gravimetric method

A.3.2.3.1 Lub hauv paus ntsiab lus Lub thickness yog ntsuas los ntawm kev ntsuas qhov loj ntawm zinc txheej ntawm ib tug nto ntawm thaj chaw paub thiab xam qhov nruab nrab thickness ntawm zinc.

A.3.2.3.2 Cov txheej txheem Kev sim yuav tsum tau ua raws li BS 729 siv lub raj coj los txiav los ntawm lub raj kub dip galvanized.

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