C型里氏硬度計(jì)沖擊裝置 時(shí)代 C型硬度計(jì)配件
里氏硬度計(jì)（原裝）沖擊裝置（采用瑞士進(jìn)口碳化鎢球頭HV1800以上）硬度更高更耐用，適用于時(shí)代里氏硬度計(jì)TH110,TH120,TH121,TH140,TH160,TH161,HLN-11A等...
沖擊裝置技術(shù)參數(shù)一覽
異型沖擊裝置 | DC（D）/DL | D+15 | C | G | E（需進(jìn)口） | |
沖擊能量 | 11mJ | 11mJ | 2.7mJ | 90mJ | 11mJ | |
球頭硬度: | 1600HV | 1600HV | 1600HV | 1600HV | 5000HV | |
沖擊裝置直徑: | 20mm | 20mm | 20mm | 30mm | 20mm | |
試件zui大硬度 | 940HV | 940HV | 1000HV | 650HB | 1200HV | |
試件表面平均粗糙度Ra: | 1.6μm | 1.6μm | 0.4μm | 6.3μm | 1.6μm | |
試件zui小重量: | 大于5kg | 大于5kg | 大于1.5kg | 大于15kg | 大于5kg | |
試件zui小厚度 | 5mm | 5mm | 1mm | 10mm | 5mm | |
球頭壓痕尺寸 | ||||||
硬度300HV時(shí) | 壓痕直徑 | 0.54mm | 0.54mm | 0.38mm | 1.03mm | 0.54mm |
硬度600HV時(shí) | 壓痕直徑 | 0.54mm | 0.54mm | 0.32mm | 0.90mm | 0.54mm |
硬度800HV時(shí) | 壓痕直徑 | 0.35mm | 0.35mm | 0.35mm | -- | 0.35mm |
沖擊裝置適用范圍 | DC型測量孔或園柱筒內(nèi);DL型測量細(xì)長窄槽或孔 | D+15型測量溝槽或凹入的表面 | C型測量小輕薄部件及表面硬化層 | G型測量大厚重及表面較粗糙的鑄鍛件 | E型測量硬度*材料 | |
沖擊裝置測試范圍表
材料 | 硬度制 | 沖擊裝置 | |||||
D/DC | D+15 | C | G | E | DL | ||
Steel and cast steel | HRC | 17.9～68.5 | 19.3～67.9 | 20.0～69.5 |
| 22.4～70.7 | 20.6～68.2 |
HRB | 59.6～99.6 |
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| 47.7～99.9 |
| 37.0～99.9 | |
HRA | 59.1～85.8 |
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| 61.7～88.0 |
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HB | 127～651 | 80～638 | 80～683 | 90～646 | 83～663 | 81～646 | |
HV | 83～976 | 80～937 | 80～996 |
| 84～1042 | 80～950 | |
HS | 32.2～99.5 | 33.3～99.3 | 31.8～102.1 |
| 35.8～102.6 | 30.6～96.8 | |
Steel鍛鋼 | HS | 32.2～99.5 |
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CWT、ST | HRC | 20.4～67.1 | 19.8～68.2 | 20.7～68.2 |
| 22.6～70.2 |
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HV | 80～898 | 80～935 | 100～941 |
| 82～1009 |
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Stainless steel | HRB | 46.5～101.7 |
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HB | 85～655 |
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HV | 85～802 |
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GC. IRON | HRC |
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HB | 93～334 |
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| 92～326 |
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HV |
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NC、IRON | HRC |
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HB | 131～387 |
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| 127～364 |
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HV |
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C．ALUM | HB | 19～164 |
| 23～210 | 32～168 |
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HRB | 23.8～84.6 |
| 22.7～85.0 | 23.8～85.5 |
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BRASS | HB | 40～173 |
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HRB | 13.5～95.3 |
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BRONZE銅錫（鋁）合金 | HB | 60～290 |
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COPPER純銅 | HB | 45～315 |
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里氏硬度計(jì)選型表示值誤差和示值重復(fù)性表
序號 | 沖擊裝置類型 | 標(biāo)準(zhǔn)里氏硬度塊硬度值 | 示值誤差 | 示值重復(fù)性 |
1 | D | 760±30HLD | ±6 HLD | 6 HLD |
2 | DC | 760±30HLDC | ±6 HLDC | 6 HLD |
3 | DL | 878±30HLDL | ±12 HLDL | 12 HLDL |
4 | D+15 | 766±30HLD+15 | ±12 HLD+15 | 12 HLD+15 |
5 | G | 590±40HLG | ±12 HLG | 12 HLG |
6 | E | 725±30HLE | ±12 HLE | 12 HLE |
7 | C | 822±30HLC | ±12 HLC | 12 HLC |
興旺寶