Copper alloyngura
atmospheric corrosion
Kuora kwemuchadenga kwezvinhu zvesimbi kunonyanya kuenderana nemhute yemvura mumhepo uye firimu remvura riri pamusoro pechinhu.Hunyoro hwemuchadenga kana kukora kwemhepo yesimbi kunotanga kuwedzera zvakanyanya kunonzi kunyorova.Iyo yakakosha humidity yemhangura alloys uye mamwe akawanda masimbi ari pakati pe50% ne70%.Kusvibiswa kuri mumhepo kune kukanganisa kukuru pakuora kwemhangura alloys.
Kuora kwezvinomera uye gasi rekupopota rinoburitswa nemafekitari zvinoita kuti ammonia nehydrogen sulfide gasi rivepo mumhepo.Ammonia inonyanya kukurumidza kuora kwemhangura nemhangura alloys, kunyanya kushungurudzika kuora.Izvo zvinosvibisa zvine acidic zvakadai seC02, SO2, NO2 mumaguta emabhizimisi emhepo zvinonyungudutswa mufirimu yemvura uye hydrolyzed, izvo zvinoita kuti firimu remvura rive acidified uye firimu rekudzivirira risina kugadzikana.
splash zone corrosion
Hunhu hwekuora hwemhangura alloys mumvura yegungwa splash zone iri padyo neiyo iri mugungwa remuchadenga.Chero alloy yemhangura ine yakanaka corrosion inopikisa kumhepo ine hutsinye yemugungwa ichavawo negora rakanaka rekudzivirira munzvimbo yesplash.Iyo splash zone inopa oxygen yakakwana kuti ikurumidze kuonda kwesimbi, asi inoita kuti zvive nyore kuti alloys yemhangura nemhangura irambe isina.Iyo corrosion rate yemhangura alloys yakazarurwa kune spatter zone kazhinji haipfuure 5 μm/a.
stress ngura
Quaternary cracking yendarira inomiririra yakajairika yekushushikana kuora kwemhangura alloys.Kutsemuka kwemwaka kwakawanikwa mukutanga kwezana ramakore rechi 20 uye kunoreva kutsemuka kuri muchikamu chebullet casing painodambuka ichienda kuhondo.Chiitiko ichi chinowanzoitika munzvimbo dzinopisa, kunyanya munguva yekunaya kwemvura, saka zvinodaidzwa kunzi mwaka wemwaka.Nekuti ine hukama neammonia kana ammonia derivatives, inonziwo ammonia cracking.Kutaura zvazviri, kuvapo kweokisijeni uye mamwe maoxidants, pamwe nekuvapo kwemvura, ihwowo mamiriro ezvinhu anokosha ekushungurudzika kwekuora kwendarira.Mamwe mamiriro ezvinhu anogona kukonzera kushungurudzika kuora kwekuputika kwemhangura alloys anosanganisira: mhepo, mvura yakachena, uye mvura yegungwa yakasvibiswa zvakanyanya neSO2;sulfuric acid, nitric acid, steam, uye aqueous solutions senge tartaric acid, acetic acid, uye citric acid, ammonia nemercury inoshandiswa kuchenesa zvikamu.
Kuora ngura
Brass dezincification imhando yakajairwa yemhangura alloy de-composition corrosion, inogona kuitika panguva imwe chete neiyo stress corrosion process, kana inogona kuitika yega.Pane nzira mbiri dze dezincification: imwe yakaturikidzana exfoliation type dezincification, iri muchimiro cheuniform corrosion uye isinganyanyi kukuvadza pakushandiswa kwezvinhu;Simba rezvinyorwa zvakaderedzwa zvakanyanya, uye njodzi yakakura.
Corrosion munharaunda yegungwa
Pamusoro penzvimbo yemuchadenga yemuchadenga, kukora kwemhangura alloys munzvimbo yegungwa kunosanganisirawo nzvimbo yekupfapfaidza mvura yegungwa, nzvimbo yetidal range uye nzvimbo yekunyudza yakazara.
Nguva yekutumira: Jul-01-2022