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          ij˴ұƷ޹˾

          Բ֪ʶ
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          40crԲֲ2012-10-23 40crԲʲôһΪṩ1.ʲô40crԲ40crԲ֣ݱ׼GB/T3077-20082.40crԲֻѧɷ֣̼C0.370.44Si0.170.37Mn0.500.80Sຬ0.035ס
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          40crԲ2012-10-19 40crԲ40crԲ&nbsp;&nbsp;40crԲ&nbsp;5.5&nbsp;0.186&nbsp;13&nbsp;1.046&nbsp;0.222&nbsp;14&nbsp;1.216.5&nbsp;0.26&nbsp;15&am
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          27simnԲ2012-10-11 &nbsp;27simnԲԲֱd&nbsp;kg/mԲֱdkg/m5.50.186131.046&lt;****vAlign=top****?ce...&lt;&gt;
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          45#Բ45#Բһֺ2012-10-08 45#Բ45#ԲһֺðȥԲֺһʵȻΪ45#Բ45#Բ֣DzϵһּӹڽָΪ˴ﵽһ״һѧܡ
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          Բ㹫ʽ2012-10-08 Բ㹫ʽͨԲ㹫ʽ=0.00617*d*d*=0.00617*ֱ*ֱ*ͬÿԲ=0.00617*d*dֱȾΪԲֱ׼W=*ܶ=3.1416*d^2/4**ܶ=[
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          40CrԲִպ40crܽ2012-10-04 40CrԲִպ40crܽο40CrԲִգ40Cr850,ػ520,ˮ40CrӲΪHRC52-60ܴﵽHRC48-5540crܽܣѧܣǿȦb(MPa)
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          ʲô̼Բʹ̼ԲֵĺôЩ2012-09-27 ʲô̼Բʹ̼ԲֵĺôЩ̼ؽṹּ̼ԲĽ京̼С0.08%̼ϸĻѧɷֲҪ֤ѧָлʺϵ͵̼
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          16mnʲô?г16mnҲ,ô?2012-09-06 16mnʲôг16mnҲô16Mnǣ16MnеͺϽǿȽṹֵͺϽǿȽṹ֣̼Ϊ0.1%-0.25%,ҪϽԪѵĺϽ<3%ǿȷ֡
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          16mnԲֻеܱ׼ʲô?16mnԲֺʲôѧԪ?2012-09-03 16mnԲֻеʲô16mnԲкЩѧԪǶ16mnԲֽϸ˽⣺16mnԲֻеܣ16mnԲһֲָĵIJǵͺϽ֣c<0.2%)ۺϻܺ»ܺѹӻܺͿɡ
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          16mnԲֻѧɷּѧ2012-08-30 16MnΪֲеһֲȥֲĵһֽз16Mn̸̼̼ĺ0.16%343MPaǿȼ343MPa16MnֵĺϽǰһ㲻Ԥ16MnֵĴӲȡ
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          16mnԲִֵб׼ʲô?2012-08-20 16mnԲִб׼ʹʹQ345B8-48016Mn16-150Q345B8-480
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          40crԲǸֵĻǿǷ2012-08-03 40crԲԭҪбҪĸ»˻мٽᾧ˻,ȻٽȱҪѧɷҪ̼ʵȴԻһԺĥָڸƵȡ
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          45#27simnϽԲʹùкβͬ2012-08-02 45#Ǻ̿0.45%̼ؽṹ,ֳ45̼,ڸ̼,ǿȸ,Բ.45#Dz淶,GB׼45,̼ؽṹ,ӲȲӹ,ģгģ,,,ȴ.45#ֹ㷺ڻе,
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          ֲĵĹͲЩ2012-08-01 1߲ģԲ߹6.5mm8mm10mm12mmԴһЩʣQ235ʵĺ壺QǿȵСֵĵһĸ2ֽƸ֣ƣHRB33520MinSiƣ
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          q235Բֱ㷺ӦЩط2012-07-28 q235ԲʲôõҪЩطǹq235Բֵ;οý̽ṹֽ쳧ѹ¯ҲҪ̫ߡ
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          35ŸҪʲô2012-07-26 35Ÿ35#ԲʲôͬDzͬһԲ35Ÿ̼ؽṹõԺʵǿܽϺп״̬͵״̬ʹ35Ÿֹ㷺ֶͼѹͶ͡
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          ԲֹҵоʲôҪ2012-07-25 ڸҵоҪΪֵĺϽԪ߸ֵǿǸǿȺǿҺҺ̬еĿʴ߸ֵĥԺͺԵһõγ̼
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          ¶ߵ100ʱֵ̼ijȻӶ2012-07-24 100Բ20ʱպ100.000¶ߵ100ʱǶ೤̼ٸӣֵ̼ϵa=(10.6~12.2)*10^(-6)㹫ʽa=(L')/(L1*(t2-t1))ֵL'=12.2*10^(-
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          ƸһΪʲôԲÿ2012-07-19 ͬͺԲƸÿǷͬƸԲֻߵ涨ߵΪֱͬԲ3%Ҳֵÿ7850Kgmmλ7.85*10^(-6)
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          38CrMoAl42CrMoͺŵԲʲô2012-07-18 38CrMoAl42CrMoͺŵIJʲô38CrMoAlרõ,һҪ߶ĥ,ͨıӲ920HV,ԤΪ(ͨӲҪ260HB,262~302HB)38CrMoAlٶȽϡ
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