1.Kipolishi fimbo ni aina ya fimbo maalum ya kunyonya iliyounganishwa na fimbo ya kunyonya na hanger ya boriti. Iko juu ya fimbo ya kunyonya, inahitaji kustahimili nguvu zaidi, kwa hivyo ikiwa na kipenyo kikubwa na daraja la juu la chuma kuliko fimbo ya kunyonya, na uso ni laini sana.
2. Kazi kuu:
Imechanganywa na seti ya kufunga kwenye kisanduku cha kufunga ili kuziba kichwa cha kisima na kuzuia mafuta, gesi, ufichuzi wa maji.
Kiunganishi cha muda kati ya fimbo ya kunyonya na hanger ya kichwa cha nyumbu
Mtihani wa kiashiria cha kumaliza.
Kamilisha operesheni mbalimbali za visima, kama vile kupiga pampu, kudhibiti mpangilio wa pampu.
Thamani ya jina | Kipenyo cha fimbo D | Urefu Lmm士 50mm (Lft 士 2in) | Kipenyo cha kawaida cha nyuzi mm (katika) | mm (katika) Uzi wa nje wa kipenyo cha bega | Saizi ya fimbo ya kunyonya inayofaa mm (ndani) |
29 | 28. 6 (11/8) | 2438, 3353, 4877, 6707, 7315, 7925 | 24 (15/16) PR | 一 | 16 (5/8) |
27 (1 1/16) PR | 一 | 19 (3/4) | |||
29 | 28. 6 (11/8) fimbo-upset upande mmoja | 2438, 3353, 4877, 6707, 7315, 7925 (8. 11, 16. 22, 24, 26) | 24 (15/16 ) SR | 31.8+0.127-0.254 (1.250+0.005-0.010) | 16 (5/8) |
27 (1 1/16 ) SR | 38.1+0.127-0.254 (1.500+0.005-0.010) | 19 (3/4) | |||
32 | 31.8 (1 1/4) | 3353, 4877, 6707,7315, 7925, 9144, 10973 | 30 (1 3/16 ) PR | 一 | 22(7/8) |
32 | 31.8 (1 1/4) fimbo-upset upande mmoja | 3353, 4877, 6707,7315, 7925, 9144, 10973 | 30 (1 3/16 ) SR | 41.3+0.127-0.254 (1.625+0.005-0.010) | 22(7/8) |
38 | 38. 1 (1 1/2) | 4877, 6707,7315, 7925. 9144. 10973 | 35 (1 3/8) PR | 一 | 25(1) |
38 | 38. 1 (1 1/2) fimbo-upset upande mmoja | 4877, 6707,7315, 7925. 9144. 10973 | 40 (1 9/16) SR | 57.2+0.381-0.381 (2.250+0.015-0.015) | 29 (1 1/8) |
● Mitambo ya Fimbo ya chuma iliyosafishwa
DARAJA | Kiwango cha Chini cha Nguvu ya Mavuno(0.2% Ugeuzi wa Mabaki) | Kiwango cha chini cha Nguvu ya Mkazo | Upeo wa Nguvu ya Mkazo | Urefu 200mm% | Kupunguza eneo Z% | HRC | HB | Maisha ya uchovu | |||
| psi | MPa | psi | MPa | psi | MPa | ≥13 | ≥50 | / | / | ≥1.0X106 |
C | 60000 | 414 | 90000 | 621 | 115000 | 793 | ≥13 | ≥50 | / | / | / |
D | 85000 | 586 | 115000 | 793 | 140000 | 965 | ≥13 | ≥50 | / | / | / |
KD | 85000 | 590 | 115000 | 795 | 140000 | 965 | ≥13 | ≥50 | / | / | / |
H | 115000 | 795 | 140000 | 965 | 173339 | 1195 | ≥13 | ≥45 | / | / | / |
EHL | / | / | 188500 | 1300 | 217500 | 1500 | / | / | ≥50 | ≥320 | ≥2.5X106 |
Kumbuka: Wakati kiwango cha chini cha nguvu cha mavuno hakiwezi kupimwa, inapaswa kuzingatiwa kuwa kuchakatwa katika sampuli ya kawaida na kusakinisha kipima kipimo. | |||||||||||
A Kwa ujumla hutengenezwa kwa chuma cha kaboni cha hali ya juu, ambacho kinaweza kufikia sifa za mitambo za meza |
● Muundo wa Kemikali WA Fimbo ya Kunyonya Inayotumika Kawaida
AISI | C | Si | Mn | P | S | Cr | Ni | Mo | V | Cu | Al |
4130 | 0.26-0.33 | 0.17-0.37 | 0.4-0.7 | ≤0.025 | ≤0.025 | 0.8-1.1 | ≤0.3 | 0.15-0.25 | / | ≤0.2 | / |
4140 | 0.38-0.45 | 0.17-0.37 | 0.5-0.8 | ≤0.025 | ≤0.025 | 0.9-1.2 | ≤0.3 | 0.15-0.25 | 0.04-0.09 | ≤0.2 | / |
4142 | 0.38-0.45 | 0.17-0.37 | 0.5-0.8 | ≤0.025 | ≤0.025 | 0.9-1.2 | ≤0.3 | 0.15-0.25 | 0.04-0.09 | ≤0.2 | / |
4330 | 0.3-0.35 | 0.15-0.35 | 0.8-1.1 | ≤0.025 | ≤0.025 | 0.8-1.1 | 1.65-2.0 | 0.2-0.3 | 0.05-0.10 | ≤0.2 | / |
4720 | 0.19-0.23 | 0.15-0.35 | 0.85-1.05 | ≤0.025 | ≤0.025 | 0.8-1.05 | 0.9-1.2 | 0.22-0.30 | 0.02-0.05 | 0.40-0.60 |
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