China 27SiMn hydraulic, irin pipe olupese
27SiMn irin pipe, ie 27 silikoni manganese seamless, irin pipe, jẹ ọkan ninu awọn ohun elo ti irin pipe, ati awọn erogba akoonu jẹ laarin 0.24-0.32%. SIMN ti wa ni akojọ lọtọ nitori akoonu ti silikoni manganese ni awọn eroja marun (erogba C, silicon Si, manganese Mn, phosphorus P, sulfur s) jẹ nipa 1.10-1.40%. 27SiMn pipe pipe jẹ o dara fun ọgbin agbara, ohun ọgbin igbomikana, ile-iṣẹ kemikali, ọkọ ati awọn ẹya ọkọ oju omi, ati bẹbẹ lọ.
27SiMn, eefun ti strut paipu. koodu oni-nọmba ti iṣọkan: a10272
Standard: GB / t17396-2018
Iru irin yii ni awọn ohun-ini to dara julọ ju irin 30Mn2 lọ, lile lile, iwọn ila opin lile lile ti 8 ~ 22mm ninu omi, ẹrọ ti o dara, ṣiṣu abuku alabọde tutu ati weldability; Ni afikun, lile ti irin ko dinku pupọ lakoko itọju ooru, ṣugbọn o ni agbara giga pupọ ati wọ resistance, paapaa nigbati omi ba pa; Sibẹsibẹ, irin yii jẹ ifarabalẹ si aaye funfun, ibinu ibinu ati aibalẹ igbona lakoko itọju ooru.
Iru irin yii ni a lo ni akọkọ ni ipo ti o pa ati iwọn otutu lati ṣe awọn ẹya isamisi gbona ti o nilo lile lile ati yiya resistance; O tun le ṣee lo labẹ deede tabi ipese yiyi gbigbona, gẹgẹbi pinni orin tirakito, ati bẹbẹ lọ.
Ohun elo 27 SIMN pipe pipe ati paipu irin lasan
27SiMn irin pipe
27SiMn irin pipe
1. Irin pipe paipu fun ito: GB / t8163-2018
2. Irin pipe fun igbomikana: GB / t3087-2018
3. Iwọn pipe ti ko ni ailopin fun igbomikana: GB / t5310-2018 (ST45.8 - iru III)
4. Iwọn ti o ga julọ ti irin pipe fun awọn ohun elo ajile kemikali: GB / t6479-2018
5. Paipu irin ti ko ni ailopin fun liluho jiolojikali: yb235-70
6. Paipu irin ti ko ni irin fun liluho epo: yb528-65
7. Paipu irin ti ko ni idọti fun fifọ epo epo: GB / t9948-2018
8. Paipu alailẹgbẹ pataki fun kola lu epo epo: yb691-70
9. Irin pipe paipu fun ọkọ ayọkẹlẹ axle ọpa: GB / t3088-2018
10. Irin pipe fun awọn ọkọ oju omi: GB / t5312-2018
11. Tutu kale tutu ti yiyi konge konge irin paipu: GB / t3639-2018
12. Irin pipe paipu fun eefun ti prop: GB / t17396-2018
Awọn ohun-ini ẹrọ ti 27SiMn paipu irin alailẹgbẹ
Agbara fifẹ σ b (MPa): ≥980
agbara ikore σ s (MPa): ≥835
Ilọsiwaju δ 5/(%): ≥12
Idinku agbegbe ψ/(%): ≥40
Agbara gbigba ipa (iye ipa) (aku2 / J): ≥ 39
Gbogbo awọn paipu irin alailẹgbẹ yoo ni idanwo fun awọn ohun-ini ẹrọ. Awọn ọna idanwo ti awọn ohun-ini ẹrọ ni akọkọ pin si awọn ẹka meji: idanwo fifẹ ati idanwo lile.
Idanwo fifẹ ni lati ṣe paipu irin alailabawọn sinu apẹẹrẹ kan, fa ayẹwo si fifọ lori ẹrọ idanwo fifẹ, lẹhinna wọn ọkan tabi pupọ awọn ohun-ini ẹrọ. Nigbagbogbo, agbara fifẹ nikan, agbara ikore, elongation lẹhin fifọ ati idinku agbegbe ni a wọn.
Idanwo líle ni lati tẹ titẹ titẹ lile kan laiyara sinu dada ayẹwo ni ibamu si awọn ipo pàtó, ati lẹhinna ṣe idanwo ijinle indentation tabi iwọn, lati pinnu lile ohun elo naa.
Machinability ti o dara, agbedemeji tutu ṣiṣu ṣiṣu abuku ati weldability; Ni afikun, lile ti irin ko dinku pupọ lakoko itọju ooru, ṣugbọn o ni agbara giga pupọ ati wọ resistance, paapaa nigbati omi ba pa; Sibẹsibẹ, irin yii jẹ ifarabalẹ si aaye funfun, ibinu ibinu ati aibalẹ igbona lakoko itọju ooru.
Awọn iṣọra fun iṣayẹwo giga giga ti paipu irin alailẹgbẹ
Awọn iṣọra fun ayewo titobi giga ti paipu irin alailẹgbẹ pẹlu awọn aaye wọnyi:
1. Ijinle ati iye ti dada decarburization.
2. Gigun ati ijinle awọn abawọn yiyi dada, iho idinku, ipinya aarin ti erogba ati sulfur.
3. Pipin ti ferrite ati pearlite ni paipu irin ti ko ni alaini.
4. Miiran microstructure abawọn, bi daradara bi ọkà iwọn, seamless paipu dada roughness ati ifisi akoonu.
