Shaandhada bacda waa qalab shaandhayn oo ujeedo badan leh oo leh qaab-dhismeed cusub, mug yar, hawlgal fudud oo dabacsan, tamar badbaadin, hufnaan sare, shaqo xiran iyo ku habboonaan xooggan. Sidoo kale waa nooc cusub oo nidaam shaandhayn ah. Gudaha waxaa taageera bac shaandhayn dambiil bir ah, dareeruhu wuxuu galayaa meesha laga galo, waxaana lagu sifeeyaa bacda shaandhada laga soo galo meesha laga soo saaro. Isla mar ahaantaana, wasakhda ayaa ku xayiran bacda shaandhada. Marka cabbirka cadaadiska uu gaaro cadaadiska la dejiyay, bacda shaandhada ayaa loo baahan yahay in la beddelo, ka dibna la sii wado isticmaalka. Shaandhada bacda si degdeg ah u fureysa waxay si dhakhso ah u furi kartaa qalabka oo waxay beddeli kartaa ama u nadiifin kartaa bacda shaandhada iyadoo lagu saleynayo asalka.
Faa'iidooyinka ugu muhiimsan ee shaandhada bacda si degdeg ah u furmeysa waa:
1. Suurtagalnimada daadashada dhinaca ee bacda shaandhada waa mid aad u yar, taas oo hubin karta tirada iyo tayada shaandhada, taasoo yareynaysa kharashka shaandhada.
2. Shaandhada bacda waxay qaadi kartaa cadaadis shaqo oo dheeraad ah, lumis cadaadis hoose iyo kharash hawlgal oo hooseeya.
3. Saxnaanta shaandhaynta bacda shaandhada waa mid sare, 0.5μm.
4. Shaandhada bacda cabbirkeedu waa yar yahay, laakiin awoodda daawaynta wasakhda ayaa weyn, taas oo si wax ku ool ah u badbaadinaysa kharashyada waxayna hagaajinaysaa hufnaanta.
5. Marka shaandhada bacdu beddesho bacaha shaandhada, fur faraantiga oo soo saar bacda shaandhada, taas oo ku habboon oo degdeg ah, waqti iyo dadaalna badbaadinaysa.
6. Bacda shaandhada ee shaandhada waxaa si isdaba joog ah loo isticmaali karaa ka dib marka la nadiifiyo, taas oo si wax ku ool ah u badbaadin karta kharashyada oo badbaadin karta tamarta.
7. Bacaha shaandhada ee ku jira shaandhada bacda waxay u adkeysan karaan aashitada iyo alkali iyo heerkul sare oo ah 200 darajo Celsius iyo ka hooseeya.
8. Waxqabadka shaandhada bacda ayaa ka wanaagsan shaandheeyayaasha kale, gaar ahaan shaandhaynta hufan, iyo shaandhaynta saxda ah.
9. Shaandhada bacda waxaa loo qaybiyaa hal bac iyo dhowr bac iyo noocyo kale, waxaana loo habeyn karaa iyadoo loo eegayo baahiyaha kala duwan.
Waqtiga boostada: Sebtembar-01-2023