Simintin gyare-gyaren ƙarfe don masana'antar kayan aikin makamashi suna buƙatar fiye da juriya na lalata kawai - suna buƙatar kwanciyar hankali a ƙarƙashin hawan zafin rana, amincin microstructural a 400 ° C+, da rashin haƙuri ga porosity a cikin yankuna masu matsa lamba. Mun ga gidajen bawul ɗin injin turbine guda uku sun dawo daga tashar wutar lantarki ta Kudu maso Gabashin Asiya saboda ginin ya tsallake gwajin ultrasonic akan yankin walda na ƙofar. Wannan shine dalilin da ya sa ƙayyadaddun simintin ƙarfe don masana'antar kayan aikin makamashi yana nufin daidaita ilimin kimiyyar abu, sarrafa tsarin simintin, da ingantaccen aiki-ba kawai ticking akwatin daraja kamar "CF8M".
Me yasa Simintin Zuba Jari ya doke Yashi don Abubuwan Makamashi Masu Mahimmanci
Ba duk simintin gyare-gyaren bakin karfe ba ne ke yin daidai da matsananciyar zafi na cyclic. A cikin watanni 18 na ƙarshe na samar da gidaje na famfo don abokan cinikin mai da iskar gas, abubuwan da aka jefa na 316L na saka hannun jari sun nuna ƙarancin microcracks 42% bayan hawan matsin lamba 5,000 tare da daidai sassan simintin yashi. Me yasa? Simintin saka hannun jari yana ba da juriya mai ƙarfi (± 0.3 mm vs ± 1.2 mm), kyakkyawan ƙarewa (Ra 3.2 µm vs Ra 12.5 µm), da ingantaccen ingancin hatsi-mahimmanci lokacin da ɓangaren ku ya ɗora fam ɗin tukunyar tukunyar tukunyar jirgi mai girma yana gudana a mashaya 220.
Yin simintin yashi ya kasance mai yuwuwa don manyan tushe mai ƙarancin damuwa-kamar ginshiƙan famfo ko firam ɗin goyan bayan injin turbin-inda nauyi da farashi suka mamaye. Amma don jujjuya majalisai, jikin bawul, ko gidajen tarkon tururi, simintin saka hannun jari ba zai yiwu ba. Muna tabbatar da kowane tsari tare da bincike na gani, gwajin tensile a kowane ASTM A743, da duban radiyo zuwa ASME BPVC Sashe na V. Babu keɓantacce.
Zaɓin Kayan Kaya Ba Game da Lambobin Saka kawai ba
"Bakin 316" ba ya gaya muku komai game da wasan kwaikwayo na ainihi na duniya. Muna yin tambayoyi guda uku kafin a faɗi: Menene max ɗin zafin aiki? Shin chloride yana nan-ko da a 5 ppm? Shin bangaren yana fuskantar gajiyar injina ko kuma nauyi a tsaye?
- Don bawul masu sanyaya ruwan teku: Mun ƙayyade F44 (UNS S32750) super duplex-ba 316 ba-saboda PREN> 40 yana tsayayya da rami inda chlorides ke tattarawa a cikin ramuka.
- Don famfo na brine geothermal: ASTM A995 Gr. 6A (CD4MCu) yana sarrafa H₂S + CO₂ fiye da daidaitattun maki duplex saboda ma'aunin ferrite/austenite mai sarrafawa.
- Don sabis na nukiliya: Simintin gyare-gyare na CF3M yana fuskantar cikakken warwarewar warwarewa + quenching a kowane ASTM A351, sannan gwajin lalata intergranular ta ASTM A262 Practice E.
Mun ƙi kuri'a na albarkatun kasa ba tare da rahotannin gwajin niƙa da ke nuna abubuwa masu alama-musamman sulfur (<0.015%) da oxygen (<0.002%). Wani ɗan lokaci na watanni 12 na abokin ciniki ya samo asali ne daga sulfur mai girma wanda ke haifar da tsagewar zafi yayin injin ƙarshe. Wannan darasi ya canza ka'idar binciken mu mai shigowa-da tasu.
Haɗin Kai Tsaye Yana Warware Abubuwan Ciwo na Haƙiƙa
Yawancin gazawar suna faruwa ba a cikin simintin gyare-gyare ba-amma a tsaka-tsakin simintin gyare-gyare da injina. Jikin bawul ɗin yashi na iya wuce NDT, amma duk da haka ya faɗi 0.15 mm yayin niƙa CNC saboda ragowar damuwa. Muna kawar da wannan haɗari ta hanyar sarrafa cikakken sarkar: simintin → maganin zafi na rage damuwa → m machining → tsufa → gama machining → CMM tabbatarwa.
Kayan aikin mu mai yarda da ISO yana gudanar da wannan jerin a ƙarƙashin rufin ɗaya. Muna auna kowane ma'auni mai mahimmanci tare da ma'aunin iska wanda aka daidaita kullun; tabbatar da ma'auni na bawul mai tushe ta hanyar amfani da masu kwatanta gani; da taswirar taurin saman faɗin yankunan da ake fama da zafi tare da masu gwajin Rockwell mai ɗaukuwa. Lokacin da abokin ciniki na Turai ya buƙaci gidaje guda 48 na injin injin turbin da aka kawo a cikin makonni 11, mun gina tsarin, zuba, injina, da gwadawa-duk a cikin gida. Babu handoffs. Babu rashin fahimta. Babu jadawalin zamewa.
Wannan ba dadi ba ne - kimiyyar lissafi ce. Yin aikin simintin gyare-gyare ba tare da sanin yadda ake rarraba danniya ba kamar kunna injin rufe ido ne.
Abin da Ake Bukata Kafin Sanya odar ku ta Farko
Kada ku aiko mana da fayil ɗin CAD kuma ku yi tsammanin zance. Kawo waɗannan abubuwa guda huɗu zuwa nazarin injiniya:
- Hoton da aka yiwa alama da ke nuna alamun kiran GD&T yana shafar aiki-ba kawai kayan kwalliya ba.
- Bayanan yanayi mai aiki: max/min zafin jiki, sunadarai na ruwa (tare da pH, chloride, H₂ matakan), da sake zagayowar aiki (ci gaba da tsaka-tsaki).
- Bukatun gwaji: matsin lamba na hydrotest, Hanyar NDT (RT/UT/PT), da ka'idojin karɓa (misali, "babu alamun> 1.5 mm a tsayi").
- Abubuwan buƙatun ganowa: Kuna buƙatar cikakken bincike mai yawa zuwa lambar zafi? Takaddun shaida ta EN 10204 3.1 ko 3.2?
Za mu ba da amsa a cikin sa'o'i 48 tare da amsawar ƙirƙira - gami da shawarwari kamar ƙaura sashin bangon bakin ciki don guje wa raguwa ko ƙara daftarin kusurwa don rage ƙarfin sakin ƙira. Wannan shine yadda simintin ƙarfe na ƙarfe don masana'antar kayan aikin makamashi ke motsawa daga ƙayyadaddun bayanai zuwa aiki mai dogaro.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yana gina ɓangarorin da suka tsira-ba kawai gamuwa da ƙayyadaddun bayanai ba. Mayar da hankalinmu ya tsaya kunkuntar: madaidaicin simintin gyare-gyare don tsarin na'ura mai aiki da karfin ruwa, kayan mai & iskar gas, da ingantattun majalissar famfo inda gazawar ba zabi bane. Ba mu kori girma. Muna magance matsalolin juzu'i, ƙarfe, da na aiki-farawa da zubowar farko.
