ST12 birta duuban ee qabow waa bir duuban oo kulul oo si dheeraad ah loo farsameeyay. Marka birta duuban ee kululi ay qaboojiso, ka dib waa la rogrogaa si loo gaaro cabbir sax ah iyo tayada dusha sare ee wanaagsan.
Xaashiyaha birta duuban ee qaboobaha ( xaashida birta CR) asal ahaan waa bir duuban oo kulul oo si dheeraad ah looga shaqeeyay
Saxan bir ah oo 'duuban' ah ayaa badanaa loo adeegsadaa si loo qeexo habab kala duwan oo loo dhammeeyo-inkastoo, farsamo ahaan, 'qabow duuban' ay khusayso oo keliya xaashida isku xidhka rolalka dhexdooda. Waxyaabaha sida baararka ama tuubooyinka waa 'la sawiray,' lama duubin. Hababka kale ee dhamaystirka qabowga waxaa ka mid ah rogid, shiidi iyo turxaan-mid kasta oo ka mid ah waxaa loo isticmaalaa in lagu beddelo kaydka kulul ee hadda jira oo loo beddelo badeecooyin la safeeyey.
ST12 gariiradda birta duuban qabow inta badan waxaa lagu aqoonsan karaa sifooyinka soo socda:
1.Cold birta duuban ayaa si ka sii fiican, dusha sare u dhammaatay oo leh dulqaad u dhow
2. Sagxadaha siman oo inta badan saliidda leh marka la taabto xaashida birta CR
3. Baararka waa run iyo labajibbaaran, waxayna badanaa leeyihiin geeso iyo geeso si fiican loo qeexay
4.Tubes waxay leeyihiin lebbis gaar ah oo qumman iyo toosnaan, oo laga sameeyay walxo qabow oo duuban.
5.Cold gariiradda birta duuban oo leh sifooyin dusha sare ka wanaagsan birta kulul duudduuban, ma aha wax la yaab leh in birta duuban qabow waxaa inta badan loo isticmaalo codsiyada dheeraad ah farsamo saxda ah ama meesha bilicsanaanta waa muhiim. Laakiin, iyada oo ay ugu wacan tahay habaynta dheeraadka ah ee alaabta qabow ee dhammaatay, waxay ku yimaadaan qiimo sare.
Marka la eego sifooyinkooda jireed, biraha qabowga lagu shaqeeyo ayaa caadi ahaan ka adag oo ka xoog badan biraha duuban ee caadiga ah. Tani waa sababta oo ah dhamaystirka birta duuban ee qabow waxay abuurtaa badeeco adag. Waxaa xusid mudan in daawayntan dheeraadka ah ay sidoo kale abuuri karaan culaysyo gudaha ah oo ku jira maaddada. Si kale haddii loo dhigo, marka la samaynayo birta qabow ka shaqeysa - haddii ay goynayso, shiiddo ama alxanayso - tani waxay sii deyn kartaa xiisadaha waxayna horseedi kartaa dagaal aan la saadaalin karin.
Calaamadaha iyo codsiga birta qabow |
|
Calaamadaha |
Codsiga |
SPCC CR birta |
Isticmaalka caadiga ah |
SPCD CR birta |
Tayada sawirista |
SPCE/SPCEN CR birta |
sawir qoto dheer |
DC01 (St12) birta CR |
Isticmaalka caadiga ah |
DC03(St13) CR birta |
Tayada sawirista |
DC04(St14,St15) CR birta |
sawir qoto dheer |
DC05(BSC2) CR birta |
sawir qoto dheer |
DC06(St16,St14-t,BSC3) |
sawir qoto dheer |
Birta qabow ee duuban Qaybta kiimikada |
|||||
Calaamadaha |
Qayb kiimiko % |
||||
C |
Mn |
P |
S |
Alt8 |
|
SPCC CR birta |
<=0.12 |
<=0.50 |
<=0.035 |
<=0.025 |
>=0.020 |
SPCD CR birta |
<=0.10 |
<=0.45 |
<=0.030 |
<=0.025 |
>=0.020 |
SPCE SPCEN CR birta |
<=0.08 |
<=0.40 |
<=0.025 |
<=0.020 |
>=0.020 |
Birta qabow ee duuban Qaybta kiimikada |
||||||
Calaamadaha |
Qayb kiimiko % |
|||||
C |
Mn |
P |
S |
Alt |
Ti |
|
DC01(St12) CR birta |
<=0.10 |
<=0.50 |
<=0.035 |
<=0.025 |
>=0.020 |
_ |
DC03(St13) CR birta |
<=0.08 |
<=0.45 |
<=0.030 |
<=0.025 |
>=0.020 |
_ |
DC04(St14,St15) CR birta |
<=0.08 |
<=0.40 |
<=0.025 |
<=0.020 |
>=0.020 |
_ |
DC05(BSC2) CR birta |
<=0.008 |
<=0.30 |
<=0.020 |
<=0.020 |
>> 0.015 |
<=0.20 |
DC06(St16,St14-t,BSC3) CR steel |
<=0.006 |
<=0.30 |
<=0.020 |
<=0.020 |
>> 0.015 |
<=0.20 |
ST12 xaashi bir duuban qabow, codsiyada gariiradaha birta duuban qabow: dhismaha, warshadaynta, samaynta weelka, samaynta maraakiibta, dhismaha buundada. Xaashiyaha birta ee CR waxa kale oo loo isticmaali karaa in lagu soo saaro weelal kala duwan.
ST12 steel sidoo kale coud loo isticmaalo qolof foornada, saxan foornada, buundada iyo
saxan bir taagan baabuurta, saxan bir daawaha hoose, saxan dhismaha maraakiibta, saxan kuleyliyaha, saxan weelka cadaadiska, saxan qaabka, qaybaha cagaf, gaadhi jir saxan bir iyo qaybaha alxanka.
Baakadaha & RaristaST12 qabow saxan bir duuban oo qabow waxaa lagu baakadeeyay warqad bunni ah iyo sanduuqa birta ah, gariiradda birta duuban qabow waxaa lagu baakadeeyey karaa suunka birta iyo sanduuqa birta
Adeegeena1.Dhammaan birta CR waxay leeyihiin dammaanad 1 sano ah laga bilaabo maalinta la rakibo.
2.Dhammaan qeexida gariiradda birta duuban ee qabow iyo faahfaahinta kale weligood looma muujin doono shirkad saddexaad.
3.We goyn kartaa birta duuban qabow ka soo gariiradda birta ilaa xaashida birta, cabbirka ayaa la samayn doonaa sida aad u baahan tahay.
4.We colud sidoo kale alxanka saxan birta duuban qabow isticmaali laba saxan bir CR.