304/304L Stainless seamless simbi pombi ndechimwe chezvinhu zvakakosha pakugadzirwa kwepombi yesimbi isina tsvina. 304/304L Stainless simbi yakajairika chromium-nickel alloy Stainless simbi ine yakanaka corrosion resistance uye yakakwirira tembiricha kuramba, iyo yakakodzera chaizvo kugadzirwa pombi fittings.
304 Stainless simbi ine yakanaka oxidation resistance uye corrosion resistance, uye inogona kuchengetedza kugadzikana uye kusimba kwechimiro chayo munzvimbo dzakasiyana siyana dzemakemikari. Mukuwedzera, iyo inewo yakanakisa kugadzirisa kushanda uye kuoma, iyo yakanakira kutonhora uye kupisa kushanda, uye inogona kusangana nezvinodiwa zvekugadzira zvemhando dzakasiyana dzepombi fittings.
Stainless simbi pombi fittings, kunyanya isina musono pombi fittings, vane yakakwirira zvinodiwa zvinhu uye zvinoda kuva chisimbiso zvakanaka uye kumanikidza kuramba. 304 Stainless seamless simbi pombi inowanzo shandiswa kugadzira akasiyana pombi mafirita nekuda kwesimba rayo rakakwirira, kusaita ngura uye yakatsetseka yemukati nzvimbo, senge magokora, matinji, flanges, mikuru nemisoro midiki, nezvimwe.
Muchidimbu,304 Stainless simbi pombiinoita basa rinokosha mukugadzirwa kwesimbi isina tsvina yepombi fittings, inopa kushanda kwakanakisa uye yakavimbika mhando, uye inopa vimbiso yakakosha yekushanda kwakachengeteka uye kusimba kwepombi fittings.
Naizvozvo, isati yasiya fekitori iri mukugadzira zvigadzirwa, inofanirwa kudzokororwa bvunzo uye inofanirwa kusangana neyakajairwa zvinodiwa pakugadzirwa kwepombi fittings. Heano mamwe maitiro ekutarisa maitiro e304/304Lpombi yesimbi isina musono.
01.Kuongorora kweCorrosion
304 Stainless seamless simbi pombi inofanirwa kuiswa mukuyedzwa kwekupokana zvinoenderana neyakajairwa zvigadziro kana nzira yekuora yakabvumiranwa nemapato ese.
Intergranular corrosion test: Chinangwa chebvunzo iyi kuona kana chinhu chine tsika ye intergranular corrosion. Intergranular corrosion imhando yekuora kwenzvimbo iyo inogadzira mitswe yekuora pamiganhu yezviyo, inozopedzisira yaita kuti zvinhu zvikundikane.
Stress corrosion test:Chinangwa chebvunzo iyi ndechekuyedza kurwisa kwecorrosion kwemidziyo mukushushikana uye nharaunda dzekuora. Stress corrosion inzira ine ngozi zvikuru yekuora inoita kuti mitswe iumbe munzvimbo dzechinhu chakatsikirirwa, zvichiita kuti zvinhu zvityoke.
Pitting Test:Chinangwa chebvunzo iyi ndeyekuyedza kugona kwechinhu kuramba kupinza munzvimbo ine chloride ions. Pitting corrosion imhando yenzvimbo yecorrosion inogadzira maburi madiki pamusoro pechinhu uye zvishoma nezvishoma inowedzera kuita mitswe.
Uniform corrosion test:Chinangwa chebvunzo iyi ndechekuyedza iyo yakazara corrosion kuramba kwezvinhu munzvimbo inoora. Uniform corrosion inoreva kuumbwa kweyunifomu ye oxide layer kana corrosion zvigadzirwa pamusoro pechinhu.
Paunenge uchiita bvunzo dzekuora, zvinodikanwa kuti usarudze akakodzera bvunzo mamiriro, senge corrosion medium, tembiricha, kudzvanywa, kuratidzwa nguva, etc. Mushure mebvunzo, zvinodikanwa kutonga kushora kwechinyorwa nekutarisa kwekuona, kuyerwa kwekurema. , metallographic analysis uye dzimwe nzira pamuenzaniso.
02.Kuongorora kwekushanda kwemaitiro
Flattening bvunzo: inoona iyo deformation kugona kwechubhu munzira yakati sandara.
Tensile kuyedzwa: Inoyera kusimba kwesimba uye kureba kwechinhu.
Impact bvunzo: Ongorora kuomarara uye kukanganisa kuramba kwezvinhu.
Flaring bvunzo: edza kuramba kwechubhu kune deformation panguva yekuwedzera.
Kuomarara bvunzo: Kuyera kukosha kwekuoma kwechinhu.
Metallographic bvunzo: tarisa iyo microstructure uye chikamu shanduko yezvinhu.
Bending bvunzo: Ongorora deformation uye kutadza kwechubhu panguva yekukotama.
Kuedza kusiri-kuparadza: kunosanganisira eddy yazvino bvunzo, X-ray bvunzo uye ultrasonic bvunzo yekuona hurema uye hurema mukati mechubhu.
03.Chemical analysis
Kuongororwa kwekemikari yezvinhu zvemakemikari kuumbwa kwe304 simbi isina musono pombi inogona kuitwa ne spectral ongororo, kuongororwa kwemakemikari, simba spectrum kuongorora uye dzimwe nzira.
Pakati pazvo, rudzi uye zviri mukati mezvinyorwa zvinogona kutariswa nekuyera spectrum yezvinyorwa. Izvo zvakare zvinogoneka kuona mhando uye zvirimo zvezvinhu nekunyungudutsa kemikari zvinhu, redox, nezvimwe, uyezve netitration kana ongororo yezviridzwa. Energy spectroscopy inzira inokurumidza uye iri nyore yekuona rudzi uye huwandu hwezvinhu muchinhu nekuinakidza ne electron danda uye wozoona mhedzisiro X-rays kana maitiro emwaranzi.
Kune 304 stainless seamless simbi pombi, zvinhu zvayo zvekemikari zvinofanirwa kuzadzisa zvinodiwa, senge Chinese standard GB/T 14976-2012 "stainless seamless simbi pombi yekufambisa mvura", iyo inotaura zvakasiyana-siyana zvemakemikari kuumbwa kwepombi ye304 isina musono pombi yesimbi. , zvakadai se carbon, silicon, manganese, phosphorus, sulfur, chromium, nickel, molybdenum, nitrogen uye zvimwe zvinhu zvemukati siyana. Paunenge uchiita ongororo yemakemikari, aya mazinga kana makodhi anofanirwa kushandiswa sehwaro hwekuona kuti kemikari yezvinyorwa inosangana nezvinodiwa.
Simbi (Fe): Margin
Carbon (C): ≤ 0.08% (304L carbon content≤ 0.03%)
Silicon(Si):≤ 1.00%
Manganese (Mn): ≤ 2.00%
Phosphorus (P): ≤ 0.045%
Sulfur (S): ≤ 0.030%
Chromium (Cr): 18.00% - 20.00%
Nickel(Ni):8.00% - 10.50%
Aya makoshero ari mukati mechikamu chinodiwa neyakajairwa zviyero, uye chaiwo maumbirwo emakemikari anogona kukwenenzverwa zvinoenderana neakasiyana zviyero (senge ASTM, GB, nezvimwewo) pamwe chete nezvinodiwa nemugadziri wechigadzirwa.
04.Barometric uye hydrostatic test
Muedzo wemvura yekumanikidza uye mhepo yekumanikidza bvunzo ye304pombi yesimbi isina musonoanoshandiswa kuyedza kuramba kudzvinyirira uye kusimba kwemhepo kwepombi.
Hydrostatic test:
Gadzirira muenzaniso: Sarudza muenzaniso wakakodzera kuti uve nechokwadi chekuti kureba uye dhayamita yemuenzaniso zvinosangana nezvinodiwa pabvunzo.
Batanidza muenzaniso: Batanidza muenzaniso kumuchina wekuyedza wehydrostatic kuti uone kuti chinongedzo chakanyatsonamwa.
Tanga bvunzo: jekiseni mvura pane imwe dzvinyiriro mumuenzaniso uye ibate kwenguva yakatsanangurwa. Mumamiriro ezvinhu akajairwa, kudzvanywa kweyedzo ndeye 2.45Mpa, uye nguva yekubata haigone kuve isingasviki mashanu masekonzi.
Tarisa kuti pane pemvura here: Chengetedza muenzaniso wekudonha kana zvimwe zvisizvo panguva yebvunzo.
Rekodha zvabuda: Rekodha kudzvanywa uye mhedzisiro yebvunzo, uye ongorora zvabuda.
Barometric bvunzo:
Gadzirira muenzaniso: Sarudza muenzaniso wakakodzera kuti uve nechokwadi chekuti kureba uye dhayamita yemuenzaniso zvinosangana nezvinodiwa pabvunzo.
Batanidza muenzaniso: Batanidza sampuli kumuchina wekuyedza mhepo kuti uve nechokwadi chekuti chikamu chekubatanidza chakanyatsovharwa.
Tanga bvunzo: jekiseni mweya pane imwe dzvinyiriro mumuenzaniso uye uibate kwenguva yakatsanangurwa. Kazhinji, muedzo wekumanikidza ndeye 0.5Mpa, uye nguva yekubata inogona kugadziriswa sezvinodiwa.
Tarisa kuti pane pemvura here: Chengetedza muenzaniso wekudonha kana zvimwe zvisizvo panguva yebvunzo.
Rekodha zvabuda: Rekodha kudzvanywa uye mhedzisiro yebvunzo, uye ongorora zvabuda.
Izvo zvinofanirwa kucherechedzwa kuti bvunzo dzinofanirwa kuitirwa munzvimbo yakakodzera uye mamiriro, senge tembiricha, humidity uye mamwe ma paramita anofanirwa kuzadzisa zvinodiwa bvunzo. Panguva imwecheteyo, zvakakosha kubhadhara kuchengeteka paunenge uchiita miedzo kuti udzivise mamiriro ezvinhu asingatarisirwi panguva yekuedzwa.
Nguva yekutumira: Jul-26-2023