Tilmaamaha
Qoryaha Firfircooni waxa si weyn loogu isticmaalaa soo saarista naxashka iyadoo ay ugu wacan tahay engegnaantiisa dhexdhexaadka ah, hab-socodka wanaagsan, iyo waxqabadkiisa yara deggan. Tilmaamaheeda muhiimka ah ayaa loo faahfaahiyay sida soo socota:
1. Tilmaamaha cabbirka
Cabirrada waxaa lagu habeeyey cabbirrada naxashka caadiga ah laakiin oggolow in wax laga beddelo.
Dhumucda: Caadi ahaan waxay u dhaxaysaa 15mm ilaa 40mm. Looxyada dhumuc weyn leh (30mm-40mm) ayaa loo isticmaalaa dhismaha ugu weyn ee naxashka (tusaale, dhinacyada, daboolka) si loo hubiyo culeyska{7}}halka kuwa khafiifka ah (15mm-25mm) laga yaabo in lagu dabaqo qaybaha sare (tusaale, dahaarka salka).
Ballaca: Balacyada guud waa 120mm-300mm. Looxyada ku dhex jira xadkan waxay yareeyaan baahida xad dhaafka ah ee kala goynta, ilaalinta sharafta naxashka iyo bilicda.
Dhererka: Sida caadiga ah 1800mm-2400mm, oo u dhiganta dhererka caadiga ah ee sanduuqyada dadka waaweyn (180cm-220cm). Dhererka dheer (ilaa 3000mm) ayaa loo habeyn karaa shuruudo gaar ah.
2. Nuxurka Qoyaanka
Muhiim u ah ka hortagga dagaal-ku-soo-baxa ama dildilaaca, qoyaanka ku jira si adag ayaa loo xakameeyaa inta u dhaxaysa 8%-12%. Kala duwanaantani waxay la socotaa badi xaaladaha cimilada gobolka, iyadoo la hubinayo in alwaaxdu uu ahaado mid deggan inta lagu jiro kaydinta, gaadiidka, iyo isticmaalka-iyaga oo ka fogaanaya qallafsanaan kara dhismaha naxashka.
3. Kala saarista darajada
Darajooyinku waxay ku salaysan yihiin cilladaha dusha sare iyo tayada alwaax, oo leh laba darajo oo waaweyn oo loogu talagalay isticmaalka naxashka:
Fasalka A: Ma jiro guntimo muuqda, dildilaacyo, ama midab oogada sare; hadhuudhku waa toosan yahay oo lebbisan yahay. Ku haboon naxashyada sare{1}
Fasalka B: Waxa uu ogolaadaa 1-2 yar, oo aan- guntin dhismeed ah (dhexroor ka yar ama la mid ah 5mm) mitirkii laba jibaaran yahay iyo leexasho yar oo hadhuudh ah. Waxa loo adeegsaday sanduuqyada dhexda-, isku dheelitirka qiimaha iyo isticmaalka
4. Tilmaamayaasha kale ee muhiimka ah
Cufnaanta: Qiyaastii 400-500 kg/m³, taasoo bixisa dheelitirnaan wanaagsan oo miisaan fudud (fudud in la qabto) iyo xoog dhismeed.
Nooca xabagta (looxyada kala go'an): Deegaanka{0}}xabag-saaxiibtinimo oo buuxiya heerarka E1 ama E0 (ka sii daynta formaldehyde In ka yar ama la mid ah 1.5mg/L) ayaa la isticmaalaa, hubinta badbaadada iyo yaraynta urta.
Daawaynta Dusha: Inta badan looxyada waxa la mariyaa ciid si loo gaadho meel siman ( qallafsanaan ka yar ama le'eg yahay 6μm), fududaynta rinjiyeynta xiga ama rinjiyeynta (dhammaystirka caadiga ah waxa ku jira jaakado cad si loo ilaaliyo qaabka dabiiciga ah ee alwaax).
Nala Soo Xidhiidh
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