表1-47鋼鐵洛氏與肖氏硬度對照肖氏HS96.695.694.693.592.691.590.589.488.487.686.585.784.884.083.182.2洛氏HRC6867.56766.56665.56564.56463.56362.56261.56160.5肖氏HS81.480.679.778.978.177.276.575.674.974.273.572.671.971.270.569.8洛氏HRC6059.55958.55857.55756.55655.55554.55453.5535...[繼續(xù)閱讀]

    表1-48黃銅維氏、洛氏、布氏硬度對照維氏洛氏布氏維氏洛氏布氏HVHRBHRFHR15THR30THR45THB10/500HVHRBHRFHR15THR30THR45THB10/50045　40.0　　　4212067.095.5　61.041.01064647　43.045.0　　　434412212468.069.096.096.583.062.062.542.043.01081104849　47.049.053.554.5　　4546...[繼續(xù)閱讀]

    表1-49鋁合金硬度與強度換算值之一(摘自GBn166-1982)硬度抗拉強度σb,MPa布氏維氏洛氏表面洛氏退火、淬火人工時效淬火自然時效變形鋁合金P=10D2HVHRBHRFHR15THR30THR45TLY11LY12LC4LD5LD10LY11LY12LD5LD10HBd10,2d54d2.5mm55.056.057.058.059.060.061.062.063.064.04.6...[繼續(xù)閱讀]

    表1-51華氏溫度F與攝氏溫度℃對照℉℃℉℃℉℃℉℃-40-30-20-10024681012141618202224262830323436-40.00-34.44-28.89-23.33-17.78-16.67-15.56-14.44-13.33-12.22-11.11-10.00-8.89-7.78-6.67-5.56-4.44-3.33-2.22-1.1101.112.2238404244464850525456586062646668707274767880823.334.445.566.677...[繼續(xù)閱讀]

    1.4.1.1室溫下純金屬材料的力學(xué)性能(表1-53)表1-53室溫下純金屬材料的力學(xué)性能金屬名稱抗拉強度彈性強度屈服點伸長率收縮率標(biāo)準(zhǔn)彈性模量GPaMPa%鋁鈹鉍80～1001405～203060—30～70——40——85——7230032鎢1200～1400—750——420鐵金銥250～...[繼續(xù)閱讀]

    表1-56常用金屬元素性能表名稱元素符號密度g/cm3熔點℃線膨脹系數(shù)1/℃導(dǎo)電率%抗拉強度σbMPa伸長率σ%收縮率%布氏硬度HB色澤銀鋁金鈹鉍AgAlAuBeBi10.492.7019.321.859.8960.5660.210631285271.20.00001890.00002360.00001420.00001150.00001341006071271.418080～...[繼續(xù)閱讀]

    表1-57常用材料的密度g/cm3材料名稱密度材料名稱密度材料名稱密度材料名稱密度灰鑄鐵白口鑄鐵可鍛鑄鐵工業(yè)純鐵鑄鋼鋼材高速鋼不銹鋼、合金鋼硅鋼片紫銅鋁錫鈦金銀鎂鋅板鉛板工業(yè)鎳鎳銅合金錫基軸承合金鉛基軸承合金鎂合金...[繼續(xù)閱讀]

    表1-58常用材料的彈性模量及泊松比名稱彈性模量E,GPa切變模量G,GPa泊松比μ灰鑄鐵、白口鑄鐵可鍛鑄鐵113～157152440.23～0.27球墨鑄鐵140～15473～76　碳鋼鎳鉻鋼、合金鋼鑄鋼196～206206172～2027979.40.24～0.280.25～0.300.30軋制純銅冷拔純銅10...[繼續(xù)閱讀]

    表1-59常用材料的摩擦系數(shù)摩擦副材料摩擦系數(shù),μ摩擦副材料摩擦系數(shù),μ無潤滑有潤滑無潤滑有潤滑鋼—鋼0.15*0.10.1～0.12*0.05～0.1青銅—不淬火的T8鋼青銅—黃銅0.160.16——鋼—軟鋼鋼—不淬火的T8鋼鋼—鑄鐵0.20.150.2～0.3*0.16～0.180.1～...[繼續(xù)閱讀]

    表1-60各種工程塑料的摩擦系數(shù)下試樣(塑料)上試樣(鋼)上試樣(塑料)靜摩擦系數(shù),μs動摩擦系數(shù),μk靜摩擦系數(shù),μs動摩擦系數(shù),μk聚四氟乙烯聚全氟乙丙烯0.100.250.050.180.04—0.04—　0.270.180.260.08～0.120.330.120.330.11續(xù)表下試樣(塑料)上試樣...[繼續(xù)閱讀]