Ibha Eyindilinga

Ibha eyindilinga (ibha yensimbi eyindilinga)yin aumkhiqizo oqinile we-cylindrical steelihlinzekwa ngobude obuqondile, obuchazwa kakhulu yiyoububanzi(isb., Ø12 mm) kanye nesimo sokulethwa (kuyashisa-kugoqekile, kwenziwe ngokwejwayelekile, noma kucishwe futhi kupholile). Ngokungafani nepayipi noma ishubhu, inakhoakukho bhobo elingenalutho-isetshenziswa njengesitoko esingahluziweukuklama, ukubumba, nokwenzaukwenza ama-shafts, izikhonkwane, amabhawodi, ama-couplings, nezingxenye zesakhiwo/zomshini.

 

I-Octal Pipe inikeza i-alloy nensimbi ekhethekileimigoqo eyindilingakukhiqizwa izigayo ezinkulu zesiShayina-zensimbi, ngamadiamitha ukusuka5 mm kuya ku-360 mm, ilethwe ngendlela eshisayo-egoqiwe, evamile, noma ecishiwe-kanye{2}}nesimo esishisayo. Le migoqo yakhelwe amakhasimende enza imishini, ukukhanga, kanye nokukhiqiza ingxenye emikhakheni efana nezamandla, izimayini, i-offshore, ezokuthutha kanye nemishini ejwayelekile.

Isibonelo (i-MTC{0}}isekelwe):Isitifiketi sokugaya esingezansi (Ø27 mm × 6 m, 35.916 t inani) sibonisa ikhemistri yensimbi eyindilinga encane{3} ehlanganisiwe neleveli yomshini esetshenziselwa izingxenye ezifunayo. ikhemistry: cishe ngo-0.33–0.34% C, i-P ephansi ( Ngaphansi noma ilingana no-0.017%) no-S ephansi ( Ngaphansi noma ilingana no-0.004%), kanye-nezakhi ze-alloying ezincane ezingu-V, Ti kanye no-B. Leyo nhlanganisela isitshela ukuthi lokhuhhayiinsimbi yokwakha eyisisekelo, kodwa aaphezulu-amandla, -okusanhlamvu okuhle, -ibha encane ehlanganisiweokuhloselwe izingxenye ezidinga kokubili amandla (≈950 MPa tensile) kanye nokuqina komthelela ku-degree -20 . Amabha afana nalawa afanelekile njengesitokwe esingavuthiwe samabhawodi, ama-shafts, izikhonkwane, izingxenye ze-drivetrain, ukumba kanye nezingxenye zezimayini.

 

Wonke amabha angahlinzekwaukulandeleka okugcwele(inombolo yokushisa, ukwakheka kwamakhemikhali, ukuhlolwa kwe-tensile, ukuhlolwa kokuthinta, ukugoba/ukugoba nokuba lukhuni) ngokuya nge-EN 10204 3.1/3.2.

 

 

 

 

Uhlobo lomkhiqizo	Ibanga losayizi
Ibha eyindilinga eshisayo-egoqiwe	5 – 360 mm
Ibha eyisicaba	Ububanzi 50 - 810 mm, ukujiya 6 - 160 mm
Ibha yesikwele	150 mm, 200 mm, 250 mm, 280 mm

 

Ukuze uthole i-shorthand,ibha eyindilinga 12mmingusayizi ojwayelekile weshabhu lamashafti amancane, izikhonkwane, namabakaki, ngenkathiibha eyindilinga R6ngokuvamile lisetshenziswa ohlwini lwesayithi ukuze lishoØ6 mm ibha eyindilinga(eminye imidwebo isebenzisa okuthi "R" njengerediyasi-ngakho qinisekisa ukuthi u-R6 usho ukuthi u-Ø6 noma irediyasi 6).

 

Osayizi abajwayelekile bebha eyindilinga (mm) abasetshenziswa ekwenzeni imishini nokwakhiwa kwesayithi:

 

Usayizi webha eyindilinga (mm)	Ukusetshenziswa okujwayelekile esizeni (umsebenzi wangempela)
6 (R6) / 8 / 10	Izikhonkwane ezincane, izesekeli zehange, amabakaki alula, izingxenye ze-jig
12 (ibha eyindilinga 12mm) / 16 / 20	Amashafu ajwayelekile, imikhono, ama-adaptha, izingxenye zokulungisa
25 / 30 / 40	Ama-couplings, izingxenye zedrayivu, amahabhu omshini
50 / 60 / 80	-izikhonkwane ezisindayo, izingxenye ezigugile ezimayini, izikhala ezifojiwe
100+	Isitokwe esikhulu semishini, izingxenye ezenziwe ngokwezifiso

 

 

 

Kusuka ku-MTC oyithumele (Heat No. 0242306413 / 0242306412, dia. 27 mm × 6 m), ikhemistri ibikwa kanje:

 

Isici	Isivivinyo 1	Isivivinyo 2	Iyunithi / ukuphawula
C	0.33	0.34	% (x100 → 33 / 34)
Si	0.28	0.26	%
UMn	0.68	0.57	%
P	0.015	0.017	% (i-P ephansi kakhulu, ukuqina okuhle)
S	0.003	0.004	% (i-S ephansi kakhulu, inhlanzeko enhle)
Cr	0.018	0.021	% (micro Cr)
Cu	0.009	0.005	%
V	0.063	0.066	% ({0}}i-alloying encane yokuqinisa)
Thi	0.042	0.043	% (ukuhluzwa okusanhlamvu)
B	0.0030	0.0030	% (ukuthuthukiswa kokuqina)

 

Lokhu kusitshelani

Ikhabhoni engaba ngu-0.33–0.34% inikeza ibhalansi enhle yamandla nokuqina ngemva kwe-QT.

U-P no-S aphansi kakhulu (Ngaphansi noma alingana no-0.017% futhi Ngaphansi noma alingana no-0.004%), okuyinto evamile-amabha ensimbi akhethekile ezingxenyeni eziwumshini.

I-V, Ti kanye no-B zikhona ngokusobala - lena akuyona insimbi eyisisekelo ethambile, kodwa i-micro-alloyed noma ibha ye-HS ({2}}yamandla aphezulu{2}}ehloselwe izakhiwo eziphakeme zokuwakha kanye nokuqina okuhle.

Inothi eliku-MTC likhombisaIfomula ye-CEV:
I-CEV=C + Mn/6 + (Cr+V+Mo)/5 + (Cu+Ni)/15
okuyindlela evamile yokulawula ukushisela kanye nengozi ebandayo-yokuqhekeka. Lolu ulwazi oluhle ongalugcina ekhasini ngoba lubonisa onjiniyela kanye naku-Google ukuthi lena idatha yokugaya yangempela.

 

 

Ngosuku-kuya{1}}ngosuku lokuthenga,ibha eyindilinga vs indukungokuvamile ahlinzeka-ifomu nokwamukelwaumehluko kunomehluko wamakhemikhali.Ibha eyindilingangokuvamile lisho{0}}ubude obuqondile, isitokwe sebha eqinile esihlinzekelwe ukukhanda nokukhanga, laphoukubekezelela ububanzi, ukuqondile, nesimo sendawosithinte ngokuqondile isikhathi somjikelezo kanye nezinga le-scrap. "Udondolo" ivamise ukusetshenziswa ngokukhululeka kuma-diameter amancane futhi, kuye ngemboni, okungabhekiselwa kuyoikhoyili-amafomu ezintambo eziphakelwayo{1}}amafomu(ehloselwe ukudweba, ukugoba, noma imizila yezintambo zokubopha) kunokusika-ibha yobude.

Indlela esebenzayo yokuwahlukanisa ukubheka ukuthi yini ebalulekile ekutholeni:

 

• Uma udingasika-kuya-kubude izikhala zokuphenduka/okuyisicefe, uvame ukuthengaibha eyindilinga-uzoba nendabaukuqondisa, i-decarb, ukukhubazeka kwendawo, nobubanzi obungaguqukingakho izingxenye zemishini zihlanzekile.
• Uma isinyathelo sakho esilandelayoumdwebo/ukwakha(imikhiqizo yocingo, ama-spring, i-fastener wire, i-coil-fed processing), "induku" imvamisa igama elisetshenziswayo, futhi ukugxila kushintshela kokuthiifomu lekhoyili, isilawuli sesikali esingaphezulu, nokudonseka.

 

Ulimi lomthengi olujwayelekile (lusiza ukugwema ukungaqondakali kwe-PO):

 

• Sebenzisa"i-round bar"lapho i-BOM yakho ilindeleØ usayizi + ubude(isb., Ø20 × 6 m) futhi inqubo yakho engezansi ingumshini/wenza.
• Sebenzisa"induku / induku yocingo"lapho i-BOM yakho ilindelei-coil/weight{0}based supplyfuthi inqubo engezansi yomfula idweba noma iyakha.

 

Ithiphu elisebenzayo lokuthenga:ukuhlelekaibha eyindilingalapho udinga isitokwe semishini esibikezelwe kanye nokuqina okuzinzile; sebenzisa amagama athi "induku" kuphela uma inqubo yakho-iwumdwebo osuselwe yikhoyili, ukugoba, noma{1}}kusekelwe kucingo.

 

 

Ukwenza ikhasi libukeke linegunya, kuyasiza ukukhombisa inqubo yangempela. Umzila ojwayelekile wale-imigoqo ezungezayo enamandla umi kanje:

a) Ukwenza insimbi nokucwengisiswa kwesibili
Insimbi incibilika nge-BOF noma nge-EAF, bese iphathwa nge-LF/VD ukuze kukhishwe isulfure ne-phosphorus futhi kulungiswe okuqukethwe kwe-alloy ngokunembile. Yilapho{1}}ama-elementi ama-micro alloying afana no-V, Ti kanye no-B engezwa khona. I-P ephansi kanye no-S ku-MTC yakho (0.015–0.017% P, 0.003–0.004% S) kuwumphumela ncamashi walesi sinyathelo - athuthukisa ukuqina nokushisela.

b) Ukulungiswa kokusakaza kanye ne-billet
Insimbi ecwengiwe iphonswa kuma-billet afanele ukugoqa ibha eyindilinga. Amabhilidi ahlanzekile anokuqukethwe okuphansi okufakwayo abalulekile ukuze uphumelele ukugoba/ukuguqula kanye nokuhlolwa komthelela okuvela kusitifiketi sakho.

c) Ukuginqika okushisayo kwebha eyindilinga
Amabhilidi ashiswa kabusha futhi agoqwe ezigayweni zebha kuya kububanzi bokugcina (isibonelo, 27 mm). I-Rolling ilawulwa ukuze kutholwe ikhwalithi ephezulu yendawo, ubuqotho kanye nokubekezelelana kobukhulu. Amabha asikwa abe ngobude bezentengiso, ngokuvamile abe ngu-6 m.

d) Ukwelashwa kokushisa (okujwayelekile noma ukucisha + ukushisa)
Ukuze kufinyelelwe izici zomshini eziboniswe kusitifiketi - esiqinile esingu-950–960 MPa, thola cishe u-905–915 MPa, amandla omthelela ku--20℃cishe ku-100–110 J - amabha awashiywa "njengoba kushiswe". Zijwayelekile noma, kaningi ngaleli zinga lamandla,quenched and tempered (Q&T).

Ukucishainikeza isakhiwo esiqinile se-martensitic/bainitic.

Ukuthuthumelaezingeni lokushisa elilungile libuyisela i-ductility, liphakamisa ukuqina komthelela, futhi lizinzise i-microstructure.
Lesi sinyathelo yiso esenza amandla abe phezulu kodwa agcine ubude bucishe bube ngu-13-14% kanye nokuncipha kwendawo engaphezu kuka-50%.

e) Ukuqondisa, ukusika nokumaka
Ngemuva kokwelashwa kokushisa imigoqo iqondiswe, inqunywe ku-6 m (noma obunye ubude obunqunyiwe), ihlanganiswe futhi imakwe ngezinombolo zokushisa.

f) Ukuhlolwa kanye nezitifiketi
Umkhiqizi wenza ukuhlaziya amakhemikhali, ukuhlolwa kwe-tensile, ukuhlolwa komthelela ku--20℃, ukugoba/ukuhlola ukugoba, ukuhlola kwe-forging kanye nokuhlola ubulukhuni - wonke amakholomu owabona ku-MTC. Kuphela lapho bonke "sebefanelekile" lapho imigoqo ikhululwa. Lokhu kunikeza abathengi ukuzethemba kokuthi yonke inqwaba ihlangabezana neleveli yomshini okuvunyelwene ngayo.

 

 

 

Izinkinga eziningi zensimbi yebha eyindilinga azibonakali eshidini lokucaphuna-ziyavelaku-lathe, ngemva kokwelashwa kokushisa, noma ngesikhathi sokuhlangana. Kumaphrojekthi asebenzisa-amandla / amabha amancane{2}}ahlanganisiwe ahlanganisiwe, i-Octal Pipe igxile kumaphuzu ekhwalithi asebenzayo anqumayo ukuthi ibha iba yingxenye ezinzile noma into ebizayo yokusebenza kabusha:

 

Okuvamise ukungahambi kahle esizeni	Yini okufanele uyicacise (ulimi lomthengi)	Yini elawulwa yi-Octal Pipe emshinini wokugaya
Ukuguga kwamathuluzi okungalindelekile / ukuklebhuka	Isimo sokulethwa + imfuneko yendawo (eshisayo-egoqiwe / ehlutshiwe / edwetshiwe)	Umzila wokulungisa indawo (isb, ukuxebula lapho kudingeka khona) + ukuqondisa ukuze kuncishiswe ukuhlukahluka komshini
I-Dimensional Drift ngemuva komshini	Ukubekezelelwa kobubanzi + imfuneko yokuqina	I-OD/ovality + ihlola ukuqondisa ukuze kuqhubeke ukushintshwa kwemvume kubikezelwe
Ukuqhekeka ngesikhathi sokuqala okubandayo / imicimbi yomthelela	Amandla anomthelela ezingeni lokushisa elishiwo (isb, "CVN @ -20℃")	Ukuhlolwa komthelela okuboshelwe ekushiseni/kuningi; ukukhululwa okusekelwe ebufakazini bokuhlola, hhayi ekucabangeleni
Ukushisa-ukuphatha ukungafani (kuqine kakhulu / kuthambile kakhulu)	Isimo sokwelashwa kokushisa (okujwayelekile / Q&T) + iwindi lokuqina	Isiyalo-sokwelashwa kokushisa + ukuqinisekiswa kokuqina ngokumelene newindi elishiwo
Amaphutha afihliwe atholwe sekwephuzile	Ububanzi be-NDT uma bubucayi (UT ngesivumelwano)	Inketho ye-UT yezingxenye ezibalulekile + ukulungiswa okulandelekayo/amarekhodi{1}}okuhlola kabusha lapho kufanele khona

 

Empeleni, lokhu kuguqula "usayizi webha eyindilinga + ibanga" ibe ngu-aokokufaka okusebenzayo kokukhiqiza: ibha ifika nesimo esichaziwe, ukuziphatha komshini okubikezelwayo, kanye nesisekelo sokukhishwa esifana nendlela izingxenye ezamukelwa ngayo ngempela. I-Octal Pipe ingasekela ukulandeleka okusekelwe okuningi-(inombolo yokushisa → imiphumela yokuhlolwa) ngakho ukuthola ukuhlolwa nokufaneleka komshini ongezansi kuhamba ngokushesha ngaphandle kwemijikelezo yamasampula eyengeziwe.

 

 

Ngoba le nto ihlanganisaamandla aphezulu (≈950 MPa), i-ductility enengqondo (A ≈ 13–14%)futhiamahle kakhulu aphansi{0}}amandla omthelela wezinga lokushisa (cishe u-100–110 J at –20℃), ingasetshenziswa ezinhlobonhlobo zezingxenye ezifunayo:

Izimayini, umhubhe kanye{0}}nezingxenye zosekelo eziphansi
Ama-rock bolt, ama-anchor rods, ama-drill rod nezinye izingxenye okufanele zisebenze emakhazeni noma{0}}ezimeni ezilayishiwe. Isivuno esiphezulu (≈910 MPa) kanye nenani elihle lomthelela kwenza ibha iphephe ngaphansi kwemithwalo yokushaqeka.

Uwoyela negesi kanye nemishini yasolwandle
Ukuxhuma izingxenye, ama-flange, amahabhu, ama-shaft nabakaki lapho{0}}ukuqina kwezinga lokushisa eliphansi kuyisibopho (–degrees angu-20 noma ngaphansi). Amazinga aphansi e-P/S kanye nokuhlolwa okubhaliwe kwenza kube lula ukwamukela kumaphrojekthi asolwandle nasolwandle.

Izingxenye zemishini namandla-zezinto zokusebenza
Amashafti, ama-ekseli, izikhonkwane, amagiya (ngemuva komshini oqhubekayo noma ukuqina kwendawo), amafreyimu emishini nezinto zokudlulisela ezidinga amandla aphezulu kunensimbi ye-carbon evamile.

Izingxenye zesitimela{0}}nezezimoto ezinzima
Lapho amakhemikhali angashintshi, ukulandeleka kanye nokushisela (i-CEV elawulwayo) kuyadingeka.

Ukwenza isitoko kanye nebha yomshini
Ngenxa yokuthi ikhemistri ihlanzekile futhi nesakhiwo sicwengisisiwe, ibha iyisisekelo esihle-sezinto ezivaliwe zokubumba noma izingxenye eziwumshini. Amakhasimende angakwazi ukwenza ubumbano ukuze alolonge futhi aqhubeke egcina izinga lokushintshwa ngemva{2}}kokufudumala.

Amaphrojekthi ezindaweni ezibandayo
Amandla omthelela afakazelwe aku--20℃ku-MTC abonisa ukuthi le mishayo ingasetshenziswa ezindaweni ezisenyakatho /{1}}zezinga lokushisa eliphansi ngaphandle kokwehluleka ukuphuka.

 

Ibha Eyindilinga Yensimbi Engagqwali

Ezingxenyeni eziveziwe zokubola{0}}, amaphrojekthi angacacisainsimbi engagqwali round baresikhundleni sekhabhoni/ingxubevangeround bar steel-ngokuvamile lapho amakhemikhali e-washdown, umswakamo wasogwini, noma i-chloride{1}}i-bearing media yenza{2}}ukuvikela okusekelwe kungathembeki. I-Octal Pipe ingacaphuna izinto zebha eyindilinga engenasici eceleni kwamaphakheji ebha yengxubevange ukuze abathengi bakwazi ukugcina isethi yedokhumenti eyodwa kanye nohlelo olulodwa lokuthunyelwa. Izinketho ezijwayelekile ezingenasici zihlanganisa u-304/304L wokumelana nokugqwala okuvamile kanye no-316/316L lapho i-chloride pitting margin idingeka khona.

 

Xhumana manje

 

 

Into	Incazelo
Ububanzi	5 – 360 mm (kuyashisa-kugoqekile); osayizi abakhahliwe noma abahlutshiwe ngokwesicelo
Ubude	6 m ejwayelekile, 3-12 m zingahlelwa
Isimo sokudiliva	Njengoba igoqiwe, ijwayelekile, i-Q&T
Amazinga esingawafanisa	I-GB/T, ASTM/AISI, EN, ukwakha umkhumbi noma umdwebo wamakhasimende
Amadokhumenti	Isitifiketi sokuhlolwa kweMill (i-chemistry + mechanicals + effect), uhlu lokupakisha, imvelaphi
Ukuhlola	Inkampani-yesithathu (SGS / BV) ingahlelwa ngaphambi kokuthunyelwa

Amashadi ashisayo: ibha eyindilinga, iChina abakhiqizi bebha eyindilinga, abahlinzeki, imboni