金屬注射成型(MIM)和陶瓷注射成型(CIM)脫脂方法和安全系統(tǒng)-納博熱

MetalInjectionMolding(MIM)andCeramicInjectionMolding(CIM)金屬注射成型（MIM）和陶瓷注射成型（CIM）DebindingMethodsandSafetySystems脫脂方法和安全系統(tǒng)ChinaInternationalPowderMetallurgyExhibition&Conference中國(guó)國(guó)際粉末冶金展和會(huì)議27.April2014FrankMurkenNaberthermGmbH/德國(guó)納博熱工業(yè)爐有限公司BoothA105Contents/目錄Introduction/介紹Methods/方法DebindinginGasAtmosphere/氣氛下脫脂CatalyticDebinding/催化脫脂DebindinginAir/空氣中脫脂SinteringFurnaces/燒結(jié)爐本文檔由本文檔由上海的光大會(huì)展主辦單位的朱嘯峰總經(jīng)理提供，歡迎行業(yè)一起分享。MIM:/下載地址：/down/1/32.htmlPowder/粉末metallic/ceramic金屬/陶瓷Binder粘結(jié)劑Mixing/混合Dispersing/分散Granulating/?；疐eedstock喂料1 Introduction/介紹Removalofthebinder/去除粘結(jié)劑

Thermaldebinding/熱脫脂

CatalyticDebinding(nitricacidandnitrogen)/催化脫脂（硝酸和氮?dú)猓?/p>

LiquidSolventsorwater/液體溶劑或水Molding成型Greenpart生坯Brownpart熟坯Debindingingasatmosphere(non-flammableorflammablegases)在氣氛下脫脂（不可燃或可燃）2 Methods/方法DebindinginAir空氣中脫脂Electricalheating/電加熱Debindingandpre-sinteringinhot-wallretortfurnaces在熱壁罐式爐內(nèi)脫脂和預(yù)燒結(jié)Debindingandsinteringinhightemperaturecold-wallretortfurnaces在高溫冷壁罐式爐內(nèi)脫脂和燒結(jié)Electricalheating/電加熱Gas-fired/氣燒Debindingandsinteringingasfurnaces在氣燒爐內(nèi)脫脂和燒結(jié)Debindinginaircirculationfurnaces在空氣循環(huán)爐內(nèi)脫脂Debindingandsinteringincombifurnaces在組合箱式爐內(nèi)脫脂和燒結(jié)3 DebindinginGasAtmosphere/氣氛下脫脂SafetyConcept:/安全方案：Nooxygeninsideprocesschamberbeforetheheatingprocesscanbestarted!/確保熱處理工藝開始前工藝腔內(nèi)無氧！Coldevacuationofthefurnace/冷態(tài)抽真空Flushingthefurnaceretortwithprotectiveorreactivegas/用保護(hù)氣或反應(yīng)氣體沖刷爐罐

Monitoringofgassupply/監(jiān)控供氣=>Safeoperationunderoverpressure/過壓下的安全操作kSafeO3 DebindinginProtectiveGasAtmosphere(IDB)/保護(hù)氣氛下脫脂IDB=InertDebindingundernonflammablegaseslikeargon,nitrogenornonflammableforminggasesatanoverpressureofapprox.35mbarrelativeIDB=在約35mbar相對(duì)過壓、不可燃?xì)怏w氣氛下惰性脫脂（氬氣，氮?dú)饣虿豢扇細(xì)怏w）SiemensS7PLCcontrolswithtouchpanel

帶觸摸屏的西門子S7PLC控制器Fail-safePLCwithadvancedsafetylogicprovidesforunattendedoperation

具有先進(jìn)安全邏輯的故障保護(hù)PLC用于無人操作Automaticpre-programforretortinerting

自動(dòng)的預(yù)處理程序，用惰性氣氛沖刷爐罐Fullyautomaticprocesscontrol

全自動(dòng)工藝控制Torchforthermalafterburningofexhaustgases

用于廢氣熱力后燃燒的火炬3 DebindinginHydrogenAtmosphere/氫氣氣氛下脫脂Debindingunderhydrogenatanoverpressureofapprox.35mbarrelative在約35mbar相對(duì)過壓，氫氣氣氛下的脫脂Sophisticatedandmaturedsafetyconcept

經(jīng)驗(yàn)豐富的和成熟的安全方案Onlycertifiedandindustryprovensafetysensorsareused

只使用通過相應(yīng)認(rèn)證的安全傳感器Fail-safePLCwithadvancedsafetylogicprovidesforunattendedoperation

具有先進(jìn)安全邏輯的故障保護(hù)PLC用于無人操作Fullyautomaticprocesscontrol

全自動(dòng)工藝控制EmergencyN2-flushcontainerforpurgingthefurnaceincaseoffailure

緊急氮?dú)鉀_洗罐，用于在故障情況下沖刷爐子CatalyticDebinding(CDB)/催化脫脂（CDB）Thepolyoxymethylene(POM)ofthebinderwillberemovedfromthegreenpartandchemicallydecomposedundertheinfluenceofnitricacid.粘結(jié)劑的聚甲醛（POM）會(huì)從生坯中去除，并且在硝酸的影響下化學(xué)分解。Safetysystemcomparablewithfurnacesworkingunderhydrogen

安全系統(tǒng)可參考在氫氣下工作的爐子Acidpumpintegratedinsafetysystem

硝酸泵集成在安全系統(tǒng)中Gascirculationforuniformtemperature

為了均勻溫度的氣體循環(huán)FixratioofHNO3/N2oradjustableasanoption/固定的HNO3/N2比，可調(diào)的比率作為可選配置Torchforthermalafterburningofexhaustgases/ 用于廢氣熱力后燃燒的火炬5 DebindinginAir/空氣中脫脂PassiveSafetyConcept:/被動(dòng)安全方案：Theelectricallyheatedfurnacesoperateaccordingtothedilutionprinciplebymeansoffreshairinjection,inordertoreducethegasemissionsfromtheloadtoanoncombustibleatmosphereinsidethefurnace.電加熱爐采用稀釋原理，通過導(dǎo)入新鮮空氣將爐內(nèi)物料的有機(jī)物排放量降低至不可燃?xì)夥铡ariousdebindingconceptsdependingone.g.debinding,productrange

根據(jù)含膠量、產(chǎn)品種類不同選擇脫脂方案Catalyticorthermalafterburnersavailable

廢氣處理可選擇催化或熱力燃燒5 DebindinginAir/空氣中脫脂Chamberfurnaces箱式爐Bogiehearthfurnaces臺(tái)車爐Aircirculationfurnaces空氣循環(huán)爐6 SinteringFurnaces/燒結(jié)爐Hot-wallretortfurnacesUpto1150°CStandardizedsizesupto1500lHorizontalandverticalloading熱壁罐式爐-最高溫度1150°C-最大標(biāo)準(zhǔn)容積1500升-可水平或垂直裝載Cold-wallretortfurnacesUpto3000°CStandardizedsizesupto500lHorizontalandverticalloading冷壁罐式爐-最高溫度3000°C-最大標(biāo)準(zhǔn)容積500升-可水平或垂直裝載SinteringingasfurnacesUpto1400°CVariousfurnaceconcepts在氣燒爐中燒結(jié)-最高溫度1400°C-可提供各種爐型SinteringinelectricalfurnacesUpto1800°CVariousheatingsystemsVariousfurnacesconcepts在電加熱爐中燒結(jié)-最高溫度1800°C-可提供各種加熱系統(tǒng)-可提供各種爐型Sinteringingasatmosphere/Vacuum在氣氛保護(hù)或真空環(huán)境下燒結(jié)Sinteri