Bir aan lahayn birta
Astaamaha
* Waxaa loo isticmaali karaa in lagu beddelo noocyo kala duwan oo ciid macdan ah & abrasives aan biraha ahayn, sida corundum, carbide silicon, quartz arenaceous, kuul dhalo, iwm.
* Sii daynta boodhka oo hooseeya, hagaajinta jawiga shaqada, deegaanka saaxiibtinimo.
* Wuxuu bedeli karaa qayb ka mid ah habka qajaarka.
* Sii daynta siigada oo yar iyo jawi shaqo oo aad u wanaagsan, taasoo yaraynaysa daaweynta qashinka.
* Kharash hoose oo dhammaystiran, nolosha adeeggu waa 30-100 jeer ka badan kuwa aan biraha ahayn sida corundum.
* Waxaa loo isticmaali karaa mashiino kala duwan: qolalka qaraxa iyo armaajooyinka qaraxa iyo sidoo kale mashiinada qarxinta taayirrada centrifugal.
Nidaamyada qarxinta:Labada nidaamka qarxinta cadaadiska, Qalab nadiifin ah oo aan hawada lahayn oo shaqayn kara.
Tilmaamaha farsamada
Adag: > HRC57
Cufnaanta: 7.0g/cm3
Shaashada | In | mm | SG18 | SG25 | SG40 | SG50 | SG80 |
14 # | 0.0555 | 1.40 | Dhammaan waa gudbaan |
|
|
|
|
16 # | 0.0469 | 1.18 |
| Dhammaan waa gudbaan |
|
|
|
18 # | 0.0394 | 1.00 | ≥75% |
| Dhammaan waa gudbaan |
|
|
20# | 0.0331 | 0.85 |
|
|
|
|
|
25 # | 0.0280 | 0.71 | ≥85% | ≥70% |
| Dhammaan waa gudbaan |
|
30# | 0.0232 | 0.60 |
|
|
|
|
|
35# | 0.0197 | 0.500 |
|
|
|
|
|
40# | 0.0165 | 0.425 |
| ≥80% | ≥70% |
| Dhammaan waa gudbaan |
45# | 0.0138 | 0.355 |
|
|
|
|
|
50# | 0.0117 | 0.300 |
|
| ≥80% | ≥65% |
|
80# | 0.0070 | 0.180 |
|
|
| ≥75% | ≥60% |
120# | 0.0049 | 0.125 |
|
|
|
| ≥70% |
Codsiga
* Dhamaystirka dusha sare ee qaybaha aan birta ahayn
* Diyaarinta dusha sare ka hor rinjiga ama dahaadhka
* Ka saarida dhoobada dhoobada maalgashiga
* Burburinta qaybaha daaweynta kulaylka aan birta ahayn
* Nadiifinta kala-goysyada alxanka leh
* Xakamaynta qaybaha balaastiigga ka hor xirmada
* Barroosinka sifada rinjiga iyo koodhka budada
