tàllal roll
Bi nga xamee ni tension bu yéeg bi dafa wara am ci wàll wi sedd bu gaaw bi, fàww ñu joxe aparey biy roller ci exit bi ak ci wàll yi ci wàll wii, te loolu mën na tànn bu baax tension bi ci diggante lii ak yeneen wàll yi.
Màndarga yi ci roller tension bi ñooy:
Tablo 3.24.16 màndarga ci roller tension
|
tàllal roll |
Limu roller |
Diametru roller |
Toll |
Taxawam tension bu ëpp |
Yokkateg tension ci cross {- areactional |
|
|
|
|
mm |
tolluwaay |
|
Minn/mm2 |
MaxN/mm2 |
|
BS4 duggal ci wàll wi gëna gaaw |
3 |
800 |
480 (120 180 180) |
3.5 |
4 |
10 |
|
Ci BS5 bu sedd bu sedd bi |
3 |
1 300 |
450 (180 180 90) |
3.2 |
10 |
6 |
Benn roller ci bu nekk ci ay roller tension (ñatteelu roller ci roller tension bi ak roller bu njëkk ci roller tension bi) amna loke ngir mëna tëye tension bi su unit bi taxawee. Loke bi amna ay bloke frein / pad ak aktuatër pneumatik.
Roller coating ak convex
Li ñuy yóbbu ci four bi dafa am surface bu dëgër, ngir mëna tëye bande bi bu baax ba noppi moytu asamaan, te loolu mën na jur ay nodule ak ay xoosu. Lu tax tàngoor wu metti: a) dafay gëna baaxal wear gi ci roller four bi ci tàngoor wu metti, gëna dëgëral dëgëraay bi, Cr25Ni20, Cr28Ni48, ak dëgëraay bi, surface bi dafay wàññeeku, waral strip bi, tension bi yombul am; b) ñaareelu mébet bi mooy baña nangu nodule yi, nodulation bi mingi aju ci surface strip bi; wala ndax tawu asiye ci tàngoor wu metti.
Xeetu spraying: a), xaralay spray yu mag, tàngoor liggéey<500℃, using materials: Co base alloy, good low temperature wear resistance, oxidation resistance and good corrosion resistance; working temperature <900℃, using material: NiCr alloy, good thermal corrosion resistance and wear resistance under medium and high temperature conditions, corrosion resistance, corrosion resistance, micro vibration and grinding wear, good corrosion resistance, good wear and oxidation resistance at medium and high temperature.
B), Explosion spraying technology, working temperature>900 degre, jëfandikoo ay jumtukaay: alloy + oxide ( seramiku metal), baña yàq tàngoor wu metti, resistance oxidation bu kawe, baña bàyyi tàngoor wu metti (bañ bi).
Li ñuy xalaat ci jëmmal ci wàllu resistant tamperatiir mooy: metal (ealy metal) + seramiku wen (non-metal). Tàngoor wu metti wi gëna baax mooy- ceramics seramik. Ngir mëna wax ni seramik bi du jeex, fase metal bi (faas bi ñuy jëfandikoo) ak seramiku metal (bu amul -metal) (funòto) dañu wara yokk doole ngir mëna am doole, baña bàyyi xel ci wàllu mbañeel, lu melni LCO-17,{7} 17.
Njàngalem coating bi ci tamperatiiru four bi ci four bi ci furnisër bi dafay nuru, maanaam, wàllu tàngoor, wàllu tàngoor ak wàllu seddal dafay jël coating bu tàng bu tàng, ak 950 wala 1050 degre ci wàllu tàngoor ak coating 000 deggere. Wàññi roller coated mingi tollu ci diggante 1 ak 10 μm Ra. Amna ay furnisër yu bari yu am coating ak màrk yu mag ci àdduna bi yépp, ci anam yii:
Tablo 3.24.18 Limu four yu tàng yi ak furnisër yi ak màrk yi
|
Xeetu coating |
carbide chromie |
kéemtaan |
|
|
CrC-1 |
CrC-2 |
|
|
|
lu am solo |
Cr3{2}}C2 Ni-Cr |
Cr3-C2 Ni Cr Alloy |
Al2O3 CoCrAlYTa |
|
Xarañ (300 HV 300) |
> 850 |
> 900 |
700 - 900 |
|
Tàngoor wu gëna mag, T (diggante) |
950 |
1000 |
1050 |
|
dëgëraay (μm) |
30 ba 70 |
30 ba 70 |
30 ba 70 |
|
tur màrk |
|
|
|
|
|
LC-1C, LC-117 |
|
LCO-17, LCO-56 |
|
|
OC-12-12 |
OC-12-32 |
|
|
|
TS-3092N |
|
TS-1037A |
|
xeetu couche buñ def |
pajum chromate |
|
lu am solo |
Cr |
|
Xarañ (300 HV 300) |
450 - 540 |
|
Tàngoor wu gëna mag, T (diggante) |
450 |
|
dëgëraay (μm) |
30 ba 50 |
|
tur màrk |
|
Motëru dawal roller: Sistemu transmisioŋ bu strip asiye mingi aju ci motëru motër ak motër, ba noppi ñu xayma ko ci done yu am solo yi: gaawaay bu gëna mag 420 mmHg, acceleration / decération 10 mpm m/sec, frein frein 15N / mm2, wuute ci tension bi ci diggante 0.1 N/mm2/ roll (bopp bu tàng), 0.3 N/mm2 / roll (bu seddal / génne).
