《1.4 轧辊的主要生产过程》由会员分享，可在线阅读，更多相关《1.4 轧辊的主要生产过程（9页珍藏版）》请在金锄头文库上搜索。
1、Cast RollsCast Rolls Main Main Manufacturing Manufacturing ProcessesProcesses 铸造轧辊的主要制造过程铸造轧辊的主要制造过程Nov. 2009 09年11月2 2009 Innse Cilindri All Rights Reserved Single Static CastingSingle Static Casting单一静态浇铸法单一静态浇铸法 Double Static CastingDouble Static Casting双重静态浇铸法双重静态浇铸法 Centrifugal CastingCentrifug
2、al Casting 离心浇铸法离心浇铸法 CPC / HIP SystemsCPC / HIP Systems 连续浇铸外层成形连续浇铸外层成形 法法/ / 热等静压法热等静压法Roll ManufactureRoll Manufacture轧辊的制造3 2009 Innse Cilindri All Rights ReservedSingleSingle Static Casting Static Casting单一静态浇铸法Method used for:Method used for:该种该种浇铸法浇铸法常用于常用于： Back Up Rolls in Chromium SteelBa
3、ck Up Rolls in Chromium Steel材质为铬钢的支撑辊材质为铬钢的支撑辊 Work Rolls in Alloyed NodularWork Rolls in Alloyed NodularCast Iron and in Low Alloyed SteelCast Iron and in Low Alloyed Steel材质为合金球墨铸铁和低合金钢的工作辊材质为合金球墨铸铁和低合金钢的工作辊4 2009 Innse Cilindri All Rights ReservedDouble Static Casting Double Static Casting 双重静态浇
4、铸法双重静态浇铸法 Back Up Rolls in Back Up Rolls in High Alloyed SteelHigh Alloyed Steel 材质为高合金钢的支撑辊材质为高合金钢的支撑辊 Work Rolls in High Work Rolls in High Alloyed Cast IronAlloyed Cast Iron 材质为高合金铸铁的工作辊材质为高合金铸铁的工作辊Method used for:Method used for: 该种浇铸法常用于：该种浇铸法常用于：5 2009 Innse Cilindri All Rights ReservedStatic
5、Casting Static Casting 静态浇铸法Advantages:Advantages:优点优点：Low investments in the foundryLow investments in the foundry铸造车间的投入铸造车间的投入少少 Disadvantages:Disadvantages:缺点缺点： Risks of shrinkage cavity and segregationsRisks of shrinkage cavity and segregationsmostly for single process mostly for single proces
6、s单一静态浇铸主要存在产生缩孔和偏析的风险单一静态浇铸主要存在产生缩孔和偏析的风险 Casting more difficult for double process in Casting more difficult for double process in addition to be expensive (+40% liquid melt) addition to be expensive (+40% liquid melt)双重静态浇铸难度大且花费高（需增加双重静态浇铸难度大且花费高（需增加40%40%的液态金属量）的液态金属量） Casting does not allow com
7、binations of grades Casting does not allow combinations of grades different for shell and core metal in compound rollsdifferent for shell and core metal in compound rolls静态浇铸不能浇铸有工作层和芯部材料之分的复合轧辊静态浇铸不能浇铸有工作层和芯部材料之分的复合轧辊6 2009 Innse Cilindri All Rights ReservedCentrifugal Casting Centrifugal Casting 离
8、心浇铸法离心浇铸法Horizontal CastingHorizontal Casting卧式浇铸卧式浇铸Vertical CastingVertical Casting立式浇铸立式浇铸External Shell External Shell 外部工作层外部工作层 Work LayerWork Layer 工作层工作层 Fill Up Material: N/L Cast IronFill Up Material: N/L Cast Iron Statically in Statically in HcHc System System Centrifugally in Centrifugal
9、ly in VcVc System System芯部球墨铸铁或灰铸铁材料的浇铸：芯部球墨铸铁或灰铸铁材料的浇铸：l l在卧式系统中进行静态浇铸在卧式系统中进行静态浇铸l l在立式系统中进行离心浇铸在立式系统中进行离心浇铸7 2009 Innse Cilindri All Rights ReservedCentrifugal CastingCentrifugal Casting离心浇铸法离心浇铸法AdvantagesAdvantages：优优 点点 High productivityHigh productivity 生产率高生产率高 Flexibility about alloy choice
10、Flexibility about alloy choice(shell & core material)(shell & core material) 合金选择灵活（工作层合金选择灵活（工作层& &芯部）芯部） No internal shrinkage defectsNo internal shrinkage defects 无内部缩孔缺陷无内部缩孔缺陷Method used for:Method used for: Work Rolls forWork Rolls for Roughing & Finishing StandsRoughing & Finishing Stands使用范围
11、：使用范围：粗轧和精轧机架的工作辊粗轧和精轧机架的工作辊8 2009 Innse Cilindri All Rights ReservedMolten Metal 液态金属Core Material 芯部材料 Shell Material 工作层材料Forged Steel 锻钢High Strength Material 高强度材料Pouring Furnace 浇铸炉Molten Metal 液态金属Core Material 芯部材料Shell Material 工作层材料Tundish 中间包Drawing Direction 拉拔方向Melting Furnace 熔炼炉Contin
12、uous Pouring for Cladding Continuous Pouring for Cladding 连续浇铸外层成形法连续浇铸外层成形法 High solidification rateHigh solidification rate 凝固速率快凝固速率快 Good homogeneity through out the shellGood homogeneity through out the shellbut but Low productivityLow productivity整个工作层的材料均匀性好整个工作层的材料均匀性好但但生产率低生产率低Mold 结晶器9 200
13、9 Innse Cilindri All Rights ReservedHot Hot IsostaticIsostatic Pressing Pressing 热等静压法热等静压法Sintering of metal powder atSintering of metal powder at high high temperature temperature (1000C) (1000C) under under high pressure (100 high pressure (100 MPaMPa) ) 在高压（在高压（100MPa)100MPa)高温高温(1000(1000CC) )下
14、对金属粉末下对金属粉末 进行烧结进行烧结 Very fine microstructureVery fine microstructure非常细密的显微结构非常细密的显微结构 Freedom in material selectionFreedom in material selection材料选择自由材料选择自由 but but 但是：但是： Expensive processExpensive process 生产费用高生产费用高 Technology not suitable for largeTechnology not suitable for largerolls (Work Rolls for HSM) rolls (Work Rolls for HSM) 此工艺不适此工艺不适 合大型轧辊（热带轧机工作辊）合大型轧辊（热带轧机工作辊）压力容器压力容器PowderPowder粉末粉末加热器加热器Pressure VesselPressure VesselHeaterHeaterCapsuleCapsule外壳外壳CoreCore芯部芯部
