小压机(Φ280Φ320mm缸径)实现大腔体(Φ2528mm)生产人造金刚石研究

(280320mm)(2528mm)?70230mm10mm14(15)161820mm18mm280320mm2528mm20400mm33mm40mm400mm500mm45mm50mm11)a)0610612MNb)SDP680068MNXY2)NiMnCo250.4mm270.4mm280.4mmT64P251mm271mm281mm38.538.538.5mm340.840.840.8mm341.541.541.5mm3424242mm3189.5mm209.5mm239.5mm3)21mm(13)25mm1.0mm160.4mm1310.854)115)320mm()10MPa/10S52%()86.8%40S()98105MPa22001213min300mm280mm()10MPa/1113S50%()84.6%3040S()125135MPa21901213min1a)25mm58678.5ct11.7ct40/6063%332.5ct49%(1)b)27mm56767.2ct13.7ct40/6062%345.3ct45%c)28mm57900.6ct15.8ct40/6062.5%414.3ct46%225mm27mm28mm23mm(2)1277%1130mm88mm1)()(1974-1976)23mm10mm15mm1820mm280320mm3500280mm280mm320mm25mm320mm320mm23mm2)280320mm?(100MPa)()34NiCrMoVA150MPa(230mm150MPa180MPa18130140MPa3)NiCrMn1213GPa5.3GPaP=5.3GPa=530kg/mm225mmL29.529.5mm2S=L2=29.52=870mm2F=P×S=530×870=461.1TP1P2320mm33320mm1.601.742728mm1.601.72280mm25mm320mm28mma)280mm25mmS=142cm2=615.4cm2F=PS=1.7953029.52=825606.2kgf(1.79)P=F/S=825606.2kgf/615.4cm2=1341.6kgf/cm2=136.9MPaxds=2PR2/(R2-r2)=2136.9MPa2052mm2/(2052-1402)mm2=513.1MPaxdsMPaPMPaRmmrmm33NiCrMoVA=8000kg/cm2=800MPan=/xds=800/513.1=1.56n1.525mm28015.6%300mm320mm300mm320mmb)320mm28mmS=162cm2=803.8cm2F=PS=1.69530322=917196.8kgf(1.69)P=F/S=917196.8kgf/803.8cm2=1141.1kgf/cm2=116.4MPaxds=2PR2/(R2-r2)=2116.4MPa2252mm2/(2252-1602)mm2=470.9MPaa)33NiCrMoVA=8000kg/cm2=800MPan=/xds=800/470.9=1.7n1.527-28mm320mm68.8%27-28mm21)2()()()2)100MPa7065000T63500T()61500T6600T12mm15mm16mm18mm20mm135143MPa7090100MPa?320mm25mm100MPa97MPa2728mm110115MPa?110115MPa280mm25mm125130MPa300mm25mm110MPa320mm2728mm110115MPa34NiCrMoVA20099%3)12MPa(MPa)()?()(280320mm)(25mm27mm28mm)1(P330)1996.8223mm1996.5252P16931996419975-65()1998.46351998P94725mm19982