MS Flat Bar/Carbon Steel Flat Bar/Chitsulo Choyaka chozinga cha Flat Bar
1. Zolemba zapadera za mankhwala.Makulidwe ake ndi 8 ~ 50mm, m'lifupi ndi 150-625mm, kutalika kwake ndi 5-15m, ndipo mawonekedwe ake ndi ochulukirapo, omwe amatha kukwaniritsa zosowa za ogwiritsa ntchito.Itha kugwiritsidwa ntchito mwachindunji m'malo mwa mbale yapakati popanda kudula ndipo imatha kuwotcherera mwachindunji.
2. Pamwamba pa mankhwala ndi osalala.Njira yochepetsera madzi yothamanga kwambiri imagwiritsidwa ntchito kawiri poonetsetsa kuti pamwamba pazitsulo ndi zosalala komanso zoyera.
3. M'mbali mwake ndi ofukula, ndipo ma rhomboid ndi omveka.Mipiringidzo iwiri yoyimirira pomaliza kugudubuza imatsimikizira kupendekeka kwabwino kumbali zonse ziwiri, ngodya zowoneka bwino, komanso mawonekedwe abwino ambali.
4. Kukula kwa mankhwalawa ndi kolondola, kusiyana kwa mfundo zitatu, kusiyana kwa msinkhu komweko kuli bwino kuposa muyezo wachitsulo;mankhwalawo ndi owongoka ndipo mawonekedwe ake ndi abwino.Kumaliza kugubuduza kumatengera njira yosalekeza yozungulira komanso kuwongolera kodziwikiratu kuti kuonetsetsa kuti palibe chitsulo chowunjika komanso palibe chitsulo chomwe chimakoka.Chogulitsacho chimakhala cholondola kwambiri.Kulekerera, kusiyana kwa mfundo zitatu, kusiyana kwa mizere komweko, kupindika kwa chikwakwa, ndi magawo ena ndizabwino kuposa mbale yapakatikati.Digiri yabwino.Kudula-kumeta ubweya wozizira, kulondola kwambiri kutalika kwake.
5. Zomwe zimapangidwira zimatengera chikhalidwe cha dziko, chomwe chili chofanana ndi mbale yachitsulo.Miyezo yaubwino ndi ukadaulo idapangidwa molingana ndi miyezo ya YB / T4212-2010 (Q345B / Q235B imanena za GB / T1591-94 ndi miyezo ya GB / T700-06, motsatana)
Aloyi No | Gulu | Chinthu(%) | ||||
C
| Mn
| S
| P
| Si
| ||
Q235
| B
|
0.12—0.20 |
0.3—0.7 | ≤0.045 |
≤0.045
|
≤0.3
|
Aloyi No | Gulu | Yielding strength point (Mpa) | Tensile mphamvu (Mpa) | Kutalikirana pambuyo pa kusweka (%) | ||||||
Makulidwe (mm) | Makulidwe (mm) | |||||||||
≤16 | >16--40 | >40-60 | >60-100 | ≤16 | >16--40 | >40-60 | >60-100 | |||
≥ | ≥ | |||||||||
Q235 |
B |
235 |
225 |
215 |
205 |
375-500 | 26 |
25 |
24 |
23 |