19-W-4 Steel Grating Piav Qhia: Qhov Loj, Load Capacity Thiab Daim Ntawv Thov

 

Qhov kev xaiv ua raws li tus qauv North American grating numbering system, qhov twg txhua feem ntawm tus lej muaj cov ntaub ntawv tshwj xeeb:

Code	Lub ntsiab lus	Tus nqi
19	Cov kabmob bar sib nrug, hauv kaum rau ntawm ib nti	19/16 hauv=1-3/16 nyob rau hauv (kwv yees . 30 mm) nruab nrab
W	Hom kev tsim kho	Welded (electro-forged ntawm txhua qhov kev sib tshuam)
4	Hla bar sib nrug	4 nyob rau hauv (kwv yees . 100 mm) nruab nrab rau nruab nrab

Cov qauv uas muaj feem xyuam siv tib lub logic: 19-W-2 muaj hla tuav ntawm 2 hauv cov chaw, thaum 15-W-4 thiab 11-W-4 siv ze dua 15/16 hauv thiab 11/16 hauv cov kabmob sib nrug raws li.

 

 

Bearing Bar Spacing: 1-3 / 16 nyob rau hauv

Lub 19/16 nyob rau hauv bearing bar spacing yog kev lag luam vim nws sib npaug peb yam:

Taug kev yooj yim thiab kev nyab xeeb- qhov qhib yog nqaim txaus rau cov qauv kev lag luam khau

Qhib cheeb tsam- kwv yees li 70-80% qhib nyob ntawm qhov loj me, muab cov kua dej zoo thiab qhov cua

Kev lag luam- Tsawg tuav ib square feet tshaj qhov sib nrug ze dua txhais tau tias qhov hnyav thiab tus nqi qis dua

Hla Bar Spacing: 4 hauv

Hla tuav yog welded hla cov kabmob tuav ntawm 4 hauv chaw los tuav lub vaj huam sib luag square thiab nruj. Lawv ruaj khov cov kabmob tuav thiab faib cov khoom hauv zos; lawv tsis yog lub luag haujlwm tseem ceeb - nqa cov tswv cuab.

Bearing Bar Loj: Qhov sib txawv uas tseem ceeb tshaj plaws

Nov yog lub ntsiab lus tseem ceeb:19-W-4 tsis qhia meej bearing bar qhov siab lossis tuab. Ob lub vaj huam sib luag tuaj yeem yog "19-W-4" thiab tseem muaj peev xwm sib txawv kiag li. Qhov ntau thiab tsawg ntawm cov kabmob muaj xws li:

 

Bearing Bar Loj	Lub luag haujlwm	Daim ntawv thov
1 x 1/8 po	Teeb	luv-txoj kev taug kev, cov dej npog
1 x 3/16 po	Txuj	Cov neeg taug kev taug kev, nkag mus rau platforms
1-1/4 x 3/16 po	Txuj	Industrial platforms, catwalks (feem ntau siv dav)
1-1/2 x 3/16 po	Nruab nrab	Ntev spans, mezzanines, trench npog
2 x 3/16 po - 6 x 1/2 po	Hnyav-duty	Forklift thiab H-20 tsheb, choj decking

Vaj Huam Sib Luag Dimensions

Standard vaj huam sib luag dav yog 2 ft thiab 3 ft, nrog ntev mus txog 24 ft. Cov khoom lag luam feem ntau yog 3 x 20 ft. Kev cai dav, qhov ntev, banding, notching thiab cutouts yog niaj hnub tsim rau qhov project drawings.

 

Xa koj cov kev xav tau

 

Lub peev xwm thauj khoom ntawm 19-W-4 vaj huam sib luag nyob ntawm:

Bearing bar loj- qhov tob dominates bending zog; ib tug siab bar spans ntxiv thiab nqa ntau dua

Clear span- qhov kev ncua deb ntawm kev txhawb nqa beams, ntsuas raws cov kabmob tuav

Load hom- uniform load (psf) piv rau concentrated load (lub log lossis pallet ntawm midspan)

Deflection txwv- feem ntau L / 240 rau cov neeg taug kev taug kev thiab L / 200 rau kev lag luam platforms

Cov ntaub ntawv qib- ASTM A36 (Fy=36 ksi) lossis sib npaug

 

Cov lus hauv qab no qhia tau hais tias raug luam tawm cov khoom sib xws rau cov khoom siv 19-W-4 feem ntau (1-1/4 x 3/16 hauv cov kabmob, A36 steel, L / 240):

Clear Span	Tso cai Uniform Load	Deflection ntawm Load
2ft ib	~ 3,643 Ib	0,07 ib
3ft ib	~ 1,619 Ib	0.15 hli
4ft ib	~ 911 Ib	0,27 ib
5ft ib	~ 583 Ib	0.42 ib
6ft ib	~ 405 Ib	0.60 ib

Cov txiaj ntsig sib txawv nrog qhov loj ntawm qhov loj, thiab cov tuav hnyav hnyav ua rau muaj peev xwm nce ntxiv. Rau tsheb lossis forklift tsheb, kev xaiv yuav tsum yog raws li lub log loads, thaj chaw tiv tauj thiab kev txhawb nqa qhov sib txawv, txheeb xyuas los ntawm kev suav engineering. Cov nqi siv no yuav tsum tsis txhob siv los hloov qhov project-tsim tshwj xeeb.

 

 

Ib qho kev ua tiav lossis RFQ yuav tsum muaj xws li:

Cov kabmob bar loj (qhov siab x thickness) – xws li . 1-1/4 x 3/16 nyob rau hauv

Span kev taw qhia thiab meej ncua nruab nrab ntawm kev txhawb nqa

Vaj huam sib luag qhov ntev thiab ntau

Nto: smooth los yog serrated

Tiav: kub-dip galvanized (ASTM A123), pleev xim los yog zeb

Cov ntaub ntawv qib thiab tus qauv (ANSI / NAAMM MBG 531, ASTM A36)

Kev kho ntug: banding, ntiv taw daim hlau, cutouts, tshem tau cov seem

Kev qhia tshwj xeeb tsuas yog "19-W-4" yog qhov tshwm sim feem ntau ntawm cov lus hais tsis raug - tus neeg muag khoom tsis tuaj yeem nqi lub vaj huam sib luag yam tsis muaj qhov loj me.

 

 

Ua tsaug rau nws qhov sib npaug ntawm lub zog, qhib cheeb tsam thiab tus nqi,19-W-4 gratingyog siv nyob rau hauv yuav luag txhua lub lag luam:

 

Industrial platforms thiab mezzanines- qhib pem teb uas hla lub teeb, huab cua thiab dej

Taug kev thiab catwalks- nce kev nkag mus nyob ib ncig ntawm lub tank, conveyors thiab yeeb nkab racks

Dej thiab trench npog- thaj chaw qhib siab rau cov dej nkag sai

Stair treads- fabricated nrog nosing thiab kawg daim hlau

Hnyav-cov haujlwm hauv pem teb- nrog 1/4 nyob rau hauv + bearing tuav: thauj khoom docks, tsheb trench, choj decking

Lub zog, tshuaj thiab dej kho cov nroj tsuag- qhov twg corrosion kuj thiab qhov cua yog qhov tseem ceeb

 

 

 

19-W-4=bearing bars ntawm 1-3/16 nyob rau hauv cov chaw, welded tsim, ntoo khaub lig tuav ntawm 4 nyob rau hauv cov chaw. Nws yog qhov sib txawv ntawm qhov sib txawv, tsis yog qhov ntsuas qhov ntsuas - cov kabmob bar loj, qhov ntev thiab cov khoom thauj khoom txiav txim siab lub peev xwm tiag tiag. Thaum thov cov lus hais, ib txwm hais txog kev teeb tsa tag nrho.