Awọn iroyin - Iṣafihan si Ẹwọn Igbesoke: G80, G100 & G120

Gbigbe awọn ẹwọn ati awọn slingsjẹ awọn paati pataki ni gbogbo ikole, iṣelọpọ, iwakusa, ati awọn ile-iṣẹ ti ita. Iṣẹ ṣiṣe wọn da lori imọ-jinlẹ ohun elo ati imọ-ẹrọ to pe. Awọn giredi ẹwọn ti G80, G100, ati G120 ṣe aṣoju awọn ẹka agbara ti o ga ni ilọsiwaju, ti a ṣalaye nipasẹ agbara fifẹ wọn kere (ni MPa) ti o pọ si nipasẹ 10:

- G80: 800 MPa kere fifẹ agbara

- G100: 1,000 MPa kere fifẹ agbara

- G120: 1,200 MPa kere fifẹ agbara

Awọn onipò wọnyi faramọ awọn iṣedede kariaye (fun apẹẹrẹ, ASME B30.9, ISO 1834, DIN EN818-2) ati ṣe ayewo ti o muna ati idanwo lati rii daju igbẹkẹle labẹ awọn ẹru agbara, awọn iwọn otutu pupọ, ati awọn agbegbe ibajẹ.

1. Awọn ohun elo ati Metallurgy: Imọ ti o wa lẹhin Awọn giredi Awọn ẹwọn Igbega

Awọn ohun-ini ẹrọ ti awọn ẹwọn gbigbe wọnyi dide lati yiyan alloy deede ati itọju ooru.

Ipele	Ohun elo ipilẹ	Ooru-itọju	Key Alloying eroja	Microstructural Awọn ẹya ara ẹrọ
G80	Alabọde-erogba, irin	Quenching & Tempering	C (0.25-0.35%), Mn	Tempered martensite
G100	Agbara giga-kekere alloy (HSLA) irin	quenching iṣakoso	K, Mo, V	Fine-grained bainite / martensite
G120	Onitẹsiwaju HSLA irin	konge tempering	Cr, Ni, Mo, micro-alloyed Nb/V	Ultra-itanran carbide pipinka

Kini idi ati bii awọn ohun elo wọnyi ṣe pataki:

- Imudara AgbaraAwọn eroja alloying (Cr, Mo, V) ṣe awọn carbides ti o ṣe idiwọ gbigbe gbigbe, jijẹ agbara ikore laisi irubọ ductility.

-Resistance rirẹ: Fine-grained microstructures ni G100/G120 idiwo kiraki ibẹrẹ. G120's tempered martensite nfunni ni igbesi aye rirẹ ti o ga julọ (> 100,000 awọn akoko ni 30% WLL).

- Wọ Resistance: Idoju oju (fun apẹẹrẹ, líle fifa irọbi) ni G120 dinku abrasion ni awọn ohun elo ikọlura bii awọn fifa iwakusa.

Alurinmorin Ilana fun pq iyege

•Pre-Weld Prepu:

Eyin isẹpo roboto lati yọ oxides/contaminants.

o Ṣaju-ooru si 200°C (G100/G120) lati dena wiwu hydrogen.

•Awọn ọna Alurinmorin:

o Lesa Welding: Fun awọn ẹwọn G120 (fun apẹẹrẹ, Al-Mg-Si alloys), alurinmorin apa meji ṣẹda awọn agbegbe idapọ pẹlu HAZ ti o ni irisi H fun pinpin wahala aṣọ.

o Gbona Waya TIG: Fun awọn ẹwọn irin igbomikana (fun apẹẹrẹ, 10Cr9Mo1VNb), alurinmorin-ọpọ-kọja dinku iparun.

•Imọran pataki:Yago fun awọn abawọn jiometirika ni HAZ – awọn aaye ibẹrẹ kiraki pataki ni isalẹ 150°C.

Post-Weld Heat Itoju (PWHT) paramita

Ipele	PWHT otutu	Akoko idaduro	Microstructural Change	Imudara ohun-ini
G80	550-600°C	2-3 wakati	Tempered martensite	Iderun wahala, + 10% ipa lile
G100	740-760°C	2-4 wakati	Fine carbide pipinka	15% ↑ rirẹ agbara, aṣọ HAZ
G120	760-780°C	1-2 wakati	Idilọwọ M₂₃C₆ coarsening	Ṣe idilọwọ pipadanu agbara ni iwọn otutu giga

Iṣọra:Ti o kọja 790 ° C nfa idinku carbide → ipadanu agbara / ipadanu ductility.

2. Gbigbe Awọn ẹwọn Išẹ ni Awọn ipo ti o pọju

Awọn agbegbe oriṣiriṣi beere awọn solusan ohun elo ti o ni ibamu.

Ifarada Iwọn otutu:

G80:Idurosinsin iṣẹ soke si 200 ° C; pẹlu ipadanu agbara iyara ju 400 ° C nitori iyipada tempering.

- G100/G120:Awọn ẹwọn Ṣe idaduro 80% agbara ni 300 ° C; pataki onipò (fun apẹẹrẹ, pẹlu kun Si/Mo) koju embrittlement si isalẹ lati -40°C fun arctic lilo.

Atako ipata:

G80:Prone to ipata; nilo epo nigbagbogbo ni awọn agbegbe tutu.

- G100/G120:Awọn aṣayan pẹlu galvanization (sinkii palara) tabi awọn iyatọ irin alagbara (fun apẹẹrẹ, 316L fun awọn ohun ọgbin okun / kemikali). Galvanized G100 duro fun awọn wakati 500+ ni awọn idanwo sokiri iyọ.

Arẹwẹsi ati Ipa lile:

G80:Deede fun awọn ẹru aimi; ipa lile ≈25 J ni -20°C.

G120:Iyatọ ti o lagbara (> 40 J) nitori awọn afikun Ni / Cr; o dara fun gbigbe gbigbe (fun apẹẹrẹ, awọn cranes ti ọkọ oju omi).

3. Ohun elo-Pato Aṣayan Itọsọna

Yiyan ipele ti o tọ ṣe iṣapeye ailewu ati ṣiṣe-iye owo.

Awọn ohun elo	Niyanju ite	Idi
Gbogbogbo Ikole	G80	Iye owo-doko fun awọn ẹru iwọntunwọnsi / awọn agbegbe gbigbẹ; fun apẹẹrẹ, scaffolding.
Ti ilu okeere / Marine Gbígbé	G100 ( Galvanized)	Agbara giga + resistance ipata; koju omi okun pitting.
Iwakusa / Quarrying	G120	Maximizes wọ resistance ni abrasive apata mu; ye ikolu èyà.
Ooru-giga (fun apẹẹrẹ, Irin Mills)	G100 (iyatọ ti a ṣe itọju ooru)	Ṣe idaduro agbara nitosi awọn ileru (to 300°C).
Lominu ni Yiyi Gbe soke	G120	Rere-sooro fun baalu gbe soke tabi yiyi ẹrọ fifi sori.

4. Idena Ikuna ati Awọn imọran Itọju

- Ikuna rirẹ:O wọpọ julọ ni ikojọpọ cyclic. G120 ká superior kiraki soju resistance din ewu yi.

- Ibajẹ Pitting:Kokoro agbara; galvanized G100 slings kẹhin 3× to gun ni etikun ojula la uncoated G80.

- Ayewo:ASME paṣẹ fun awọn sọwedowo oṣooṣu fun awọn dojuijako, wọ> iwọn ila opin 10%, tabi elongation. Lo idanwo patiku oofa fun awọn ọna asopọ G100/G120.

5. Iwuri Awọn Imudaniloju ati Awọn Ilọsiwaju iwaju

- Awọn ẹwọn Smart:Awọn ẹwọn G120 pẹlu awọn sensọ igara ti a fi sii fun ibojuwo fifuye akoko gidi.

- Awọn aṣọ:Nano-seramiki ti a bo lori G120 lati fa igbesi aye iṣẹ ni awọn agbegbe ekikan.

- Imọ ohun elo:Iwadi sinu awọn iyatọ irin austenitic fun igbega cryogenic (-196°C awọn ohun elo LNG).

Ipari: Ipe Awọn ẹwọn Ibamu si Awọn iwulo Rẹ

- Yan G80fun iye owo-kókó, ti kii-ibajẹ aimi gbe soke.

- Pato G100fun awọn agbegbe ibajẹ / agbara ti o nilo agbara iwọntunwọnsi ati agbara.

- Jade fun G120ni awọn ipo to gaju: rirẹ ti o ga, abrasion, tabi awọn igbega to ṣe pataki to ṣe pataki.

Akiyesi Ipari: Nigbagbogbo ṣe pataki awọn ẹwọn ifọwọsi pẹlu awọn itọju ooru ti o le wa kakiri. Yiyan ti o yẹ ṣe idilọwọ awọn ikuna ajalu — imọ-jinlẹ ohun elo jẹ ẹhin ti aabo gbigbe.

Akoko ifiweranṣẹ: Jun-17-2025