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时间:2018-12-13
《偏苯三酸三辛酯项目可行性研究报告》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、北京智博睿信息咨询有限公司www.zhiborui.com偏苯三酸三辛酯项目可行性研究报告透明油状液体,密度(20℃)0.988,折光(n20D)1.485,沸点(1mmHg)258℃,熔点:46℃。一种耐热和耐久主增塑剂,兼具聚酯增塑剂和单体增塑剂的优点,相溶性、加工性、低温性亦较聚酯增塑剂为优。电性能优良。主要用于105℃级耐热电线电缆料以及其他要求耐热和耐久性的板材、片材、密封垫等制品。本品亦适用于氯乙烯共聚物,硝酸纤维素、乙基纤维素,聚甲基丙烯酸甲酯等多种塑料。包装:200公斤铁桶功根据用户要求包装。贮运:应存放阴凉、干燥处;运输时防晒,系非危险品。另:提供国家发改委甲、乙、丙级资质
2、北京智博睿信息咨询有限公司 www.zhiborui.com www.zbrtz.com可行性研究报告大纲(具体可根据客户要求进行调整)第一章研究概述第一节研究背景与目标第二节研究的内容第三节研究方法第四节数据来源edgesshouldbecleaned,aftermakingsurethatnodefectshallbemarkedwithamarkerpentowritedownweldingneartheweld,includingthesloganofwelding,welders,etc.(16)weldingQianPreh
3、eatandtheweldingHouheattreatmentpipeweldingQianPreheatandtheweldingHouheattreatmentprocessconditionsweldingQianPreheatandtheweldingHouheattreatmenttemperaturetableprojectmaterialweldingQianpreheattemperature(℃)weldingHouheattreatmentandtheinsulationtime(℃/H)wallthick(mm)temperature(℃)wallthick(mm)t
4、emperature(℃)20≥26100~200>36600~650/1-1.515CrMo≥10150~200>10670~700/1.2-2Preheatandtheheattreatmentprocessinthe,Innerandouterwalltemperatureshallbekeptuniform,inordertoavoidinternalstresses.Preheatingbeforeweldingandpostweldheattreatment,shallmeasureandrecordthetemperature,temperaturemeasurementloc
5、ationsandnumberofpointsarereasonable.Pronetowelddelayedcrackofsteel,postweldheattreatmentafterweldingshouldbecarriedoutpromptly,whennotconductingtimelypostweldheattreatment,shouldbeuniformlyheatedto200~300℃immediatelyafterweldingandinsulationandslowcooling,...26mmmorethan20steelpipeweldingpreheatin
6、gbeforeweldingshouldbecarriedout,36mmtheaboveheattreatmentafterweldingshouldbedone.Beforeweldingandheattreatmentusedoxyacetyleneflameheating,heattreatmentafterweldingusingspecialheattreatmentafterweldingequipment.Hardnessafterheattreatmentofweldsneededtesting.6.5.4sidesofthedissimilarsteelweldingwh
7、enwerenon-austeniticsteelorausteniticsteel,alloycontentaccordingtoloweronesideofthebasemetalorselectingweldingmaterialinbetween.Whenoneofthesidesofmaterialwhenausteniticsteels,shouldselectthe15报告用途:发改委立项、政府
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