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工業(yè)表面處理
工業(yè)用零部件的表面處理都是相當(dāng)有講究的。比如：汽車的發(fā)動機(jī)軸、氣缸套筒、高速齒輪等主要性能部件都需要進(jìn)行表面氮化處理，以提高硬度、耐磨性和疲勞極限。
耐腐蝕質(zhì)量流量控制器用于金屬表面氮化處理
氮化處理是利用氨在一定溫度(500～600℃)下所分解的活性氮原子向鋼的表面層擴(kuò)散，而形成鐵氮合金，從而改變工件表面的力學(xué)性能和物理、化學(xué)性質(zhì)。圖為國內(nèi)某知名氮化爐生產(chǎn)廠家利用ALICAT質(zhì)量流量控制器控制參與氮化爐內(nèi)反應(yīng)的氨氣的質(zhì)量流量。
氨氣在400℃以上發(fā)生分解反應(yīng)：2NH3→2N+3H2
分解出的氮原子被工件吸收從而形成氮化層。將被加工工件置于滲氮爐內(nèi)不銹鋼真空密封罐中，通過質(zhì)量流量控制器精密控制氨氣的輸入流量，加熱到520℃，根據(jù)工件要求的氮化層厚度保持適當(dāng)?shù)臅r間，通常為10~60小時。整個過程中需要保持穩(wěn)定的氨氣流量并根據(jù)氮勢的變化迅速調(diào)節(jié)裂解氨氣的流量，由此確保滲氮爐內(nèi)穩(wěn)定的氣氛及爐壓，使得被加工部件表面氮層均勻。
耐腐蝕質(zhì)量流量控制器同時測量氮化爐多種變量參數(shù)
質(zhì)量流量、體積流量、溫度、絕對壓力、累計流量(選配)
50毫秒內(nèi)實現(xiàn)穩(wěn)定、可重復(fù)的流量控制
消除上游壓力波動造成的影響
標(biāo)配98~128種工業(yè)常用純氣和混合氣體
靈活切換氣體、降低質(zhì)量流量控制器采購成本
標(biāo)配RS-232數(shù)字通訊 + 0~5V模擬通訊
可選配所有工業(yè)常用通訊方式：4～20mA, RS485, Modbus, Profibus, DeviceNet, EtherCAT, EtherCAT, LabVIEW
耐腐蝕質(zhì)量流量控制器標(biāo)配兼容氣體列表
再也不需要模棱兩可的系數(shù)K
| 純氣 | 生物反應(yīng)混合氣 | 腐蝕性純氣 |
| ● 乙炔 (C2H2) | ● 5% CH4 95% CO2 | *須使用 20S/21S系列設(shè)備 |
| ● 空氣 | ● 10% CH4 90% CO2 | ● 氨氣 (NH3) |
| ● 氬氣 (Ar) | ● 15% CH4 85% CO2 | ● 丁烯 (1-Butene) |
| ● 異丁烷 (i-C4H10) | ● 20% CH4 80% CO2 | ● 順丁烯 (cis-2-Butene) |
| ● 正丁烷 (n-C4H10) | ● 25% CH4 75% CO2 | ● 異丁烯 |
| ● 二氧化碳 (CO2) | ● 30% CH4 70% CO2 | ● 反丁烯 |
| ● 一氧化碳 (CO) | ● 35% CH4 65% CO2 | ● 硫化羰 (COS) |
| ● 氘氣 (D2) | ● 40% CH4 60% CO2 | ● 氯氣 (Cl2) *僅限用于流量計 |
| ● 乙烷 (C2H6) | ● 45% CH4 55% CO2 | ● 二甲基乙醚 (CH3OCH3) |
| ● 乙烯 (C2H4) | ● 50% CH4 50% CO2 | ● 硫化氫 (H2S) |
| ● 氦氣 (He) | ● 55% CH4 45% CO2 | ● 三氟化氮 (NF3) |
| ● 氫氣 (H2) | ● 60% CH4 40% CO2 | ● 氧化一氮 (NO) |
| ● 氪氣 (Kr) | ● 65% CH4 35% CO2 | ● 丙烯 (C3H6) |
| ● 甲烷 (CH4) | ● 70% CH4 30% CO2 | ● 硅烷 (SiH4) |
| ● 氖氣 (Ne) | ● 75% CH4 25% CO2 | ● 二氧化硫 (SO2) *僅限用于流量計 |
| ● 氮氣 (N2) | ● 80% CH4 20% CO2 | |
| ● 一氧化二氮 (N2O) | ● 85% CH4 15% CO2 | |
| ● 氧氣 (O2) | ● 90% CH4 10% CO2 | |
| ● 丙烷 (C3H8) | ● 95% CH4 5% CO2 | |
| ● 六氟化硫 (SF6) | ||
| ● 氙氣 (Xe) | ||
| 呼吸氣體 | 燃燒混合氣 | 制冷劑 |
| ● EAN-32 (32% O2+68% N2) | ● 煤氣 50% H2+35% CH4+10% CO+5% C2H4 | *須使用20S/21S系列設(shè)備 |
| ● EAN-36 (36% O2+64% N2) | ● 吸熱型氣體 75% H2+25% N2 | ● R-11 Trichlorofluoromethane (CCl3F) |
| ● EAN-40 (40% O2+60% N2) | ● HHO 66.67% H2+33.33% O2 | ● R-14 Tetrafluoromethane (CF4) |
| ● EA-40 (40% O2+60% Air) | ● LPG HD-5 96.1% C3H8+1.5% C2H6+0.4% C3H6+1.9% n-C4H10 | ● R-22 Difluoromonochloromethane (CHClF2) |
| ● EA-60 (60% O2+40% Air) | ● LPG HD-10 85% C3H8+10% C3H6+ 5% n-C4H10 | ● R-23 Trifluoromethane (CHF3) |
| ● EA-80 (80% O2+20% Air) | ● 天然氣 93% CH4+3% C2H6+1% C3H8+2% N2+1% CO2 | ● R-32 Difluoromethane (CH2F2) |
| ● Heliox-20 (20% O2+80% He) | ● 天然氣 95% CH4+3% C2H6+1% N2+ 1% CO2 | ● R-115 Chloropentafluoroethane (C2ClF5) |
| ● Heliox-21 (21% O2+79% He) | ● 天然氣 95.2% CH4+2.5% C2H6+0.2% C3H8+0.1% C4H10+1.3% N2+0.7% CO2 | ● R-116 Hexafluoroethane (C2F6) |
| ● Heliox-30 (30% O2+70% He) | ● 合成氣體 40% H2+29% CO+20% CO2+11% CH4 | ● R-124 Chlorotetrafluoroethane (C2HClF4) |
| ● Heliox-40 (40% O2+60% He) | ● 合成氣體 64% H2+28% CO+1% CO2+7% CH4 | ● R-125 Pentafluoroethane (C2HF5) |
| ● Heliox-50 (50% O2+50% He) | ● 合成氣體 70% H2+4% CO+25% CO2+1% CH4 | ● R-134A Tetrafluoroethane (CH2FCF3) |
| ● Heliox-60 (60% O2+40% He) | ● 合成氣體 83% H2+14% CO+3% CH4 | ● R-142B Chlorodifluoroethane (CH3CClF2) |
| ● Heliox-80 (80% O2+20% He) | ● R-143A Trifluoroethane (C2H3F3) | |
| ● Heliox-99 (99% O2+1% He) | ● R-152A Difluoroethane (C2H4F2) | |
| ● Metabolic Exhalant (16% O2+78.04% N2+5% CO2+0.96% Ar) | ● RC-318 Octafluorocyclobutane (C4F8) | |
| ● R-404A (44% R-125+4% R-134A+52% R-143A) | ||
| ● R-407C (22% R-32+25% R-125+52% R-134A) | ||
| ● R-410A (50% R-32+50% R-125) | ||
| ● R-507A (50% R-125+50% R-143A) | ||
| 色譜氣體 | 氧濃縮器混合氣 | |
| ● P-5 (5% CH4+95% Ar) | ● 89% O2+7% N2+4% Ar | |
| ● P-10 (10% CH4+90% Ar) | ● 93% O2+3% N2+4% Ar | |
| ● 95% O2+1% N2+4% Ar | ||
| 焊接氣體 | 煙氣 | 激光氣體 |
| ● C-2 (2% CO2+98% Ar) | ● 2.5% O2+10.8% CO2+85.7% N2+1% Ar | ● 4.5% CO2+13.5% N2+82% He |
| ● C-8 (8% CO2+92% Ar) | ● 2.9% O2+14% CO2+82.1% N2+1% Ar | ● 6% CO2+14% N2+80% He |
| ● C-10 (10% CO2+90% Ar) | ● 3.7% O2+15% CO2+80.3% N2+1% Ar | ● 7% CO2+14% N2+79% He |
| ● C-15 (15% CO2+85% Ar) | ● 7% O2+12% CO2+80% N2+1% Ar | ● 9% CO2+15% N2+76% He |
| ● C-20 (20% CO2+80% Ar) | ● 10% O2+9.5% CO2+79.5% N2+1% Ar | ● 9.4% CO2+19.25% N2+71.35% He |
| ● C-25 (25% CO2+75% Ar) | ● 13% O2+7% CO2+79% N2+1% Ar | ● 9% Ne+91% He |
| ● C-50 (50% CO2+50% Ar) | ||
| ● C-75 (75% CO2+25% Ar) | ||
| ● He-25 (25% He+75% Ar) | ||
| ● He-50 (50% He+50% Ar) | ||
| ● He-75 (75% He+25% Ar) | ||
| ● He-90 (90% He+10% Ar) | ||
| ● A1025 (90% He+7.5% Ar+2.5% CO2) | ||
| ● Stargon CS (90% Ar+8% CO2+2% O2) |
品種齊全，上萬種儀表
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