服務(wù)熱線：手機(jī)號(hào)碼：19121166298
地 址：上海市北京東路668號(hào)科技京城東樓27樓C1室
ATOS阿托斯比例溢流閥調(diào)試經(jīng)驗(yàn)
經(jīng)驗(yàn)交流
ATOS阿托斯比例溢流閥首先由電氣技術(shù)員在壓機(jī)調(diào)整狀態(tài)下，按“滑塊下行"按鈕，泵和閥不斷電的情況下，給比例溢流閥壓力從4，5，6…….25MPa的信號(hào)，使壓機(jī)強(qiáng)行由比例溢流閥溢流；每個(gè)壓力反復(fù)測(cè)試5次，反復(fù)觀察，看每次溢流是否穩(wěn)定。
一、如果波動(dòng)穩(wěn)定由電氣技術(shù)員按下行方式編程完成調(diào)試。
1、力士樂比例溢流閥按以下曲線和函數(shù)進(jìn)行調(diào)試
- atos阿托斯比例閥電流型（4-20毫安輸入）
*段：區(qū)間[4,7.2]，包含坐標(biāo)點(diǎn)(4，1.4)，(5.36，2)，(6.24，3.2)，(7.2，6)，曲線函數(shù)為：
- 電流與開口度P%函數(shù)：
- 電流I(mA)與壓強(qiáng)P(Mpa)函數(shù)：
- 壓強(qiáng)P(Mpa)與電流I(mA)函數(shù)：
第二段：區(qū)間[7.2,10.4]，包含坐標(biāo)點(diǎn)(7.2，6)，(8.4，10.5)，(9.04，15)，(9.76，20)，(10.4，24.5)，曲線函數(shù)為：
- 電流與開口度P%函數(shù)：
- 電流I(mA)與壓強(qiáng)P(Mpa)函數(shù)：
- 壓強(qiáng)P(Mpa)與電流I(mA)函數(shù)：
ATOS阿托斯比例溢流閥根據(jù)圖2所示，就此段所測(cè)數(shù)據(jù)信息來看的話，此段曲線應(yīng)該用四次函數(shù)來擬合
第三段：區(qū)間[10.4,20]，包含坐標(biāo)點(diǎn)(10.4，24.5)，(12.32，40)，(13.6，50)，(14.88，60)，(16.8，75)，(17.44，80)，(20，100)，
- 電流與開口度P%函數(shù)：
- 電流I(mA)與壓強(qiáng)P(Mpa)函數(shù)：
- 壓強(qiáng)P(Mpa)與電流I(mA)函數(shù)：
- atos阿托斯比例閥電壓型（0-10伏）
*段：區(qū)間[0,2]，包含坐標(biāo)點(diǎn)(0，1.4)，(0.85，2)，(1.4，3.2)，(2，6)
曲線函數(shù)為：
- 電壓U(V)與開口度函數(shù)：
- 電壓U(V)與壓強(qiáng)P(Mpa)函數(shù)：
- 壓強(qiáng)P(Mpa)與電壓U(V)函數(shù)
第二段：區(qū)間[2,4]，包含坐標(biāo)點(diǎn)(2，6)，(2.75，10.5)，(3.15，15)，(3.6，20)，(4，24.5)曲線函數(shù)為：
- 電壓U(V)與開口度函數(shù)：
- 電壓U(V)與壓強(qiáng)P(Mpa)函數(shù)：
- 壓強(qiáng)P(Mpa)與電壓U(V)函數(shù)：
第三段：區(qū)間[4,10]，包含坐標(biāo)點(diǎn)(4，24.5)，(5.2，40)，(6，50)，(6.8，60)，(8，75)，(8.4，80)，(10，100)曲線函數(shù)為：
- 電壓U(V)與開口度P%函數(shù)：
- 電壓U(V)與壓強(qiáng)P(Mpa)函數(shù)：
- 壓強(qiáng)P(Mpa)與電流U(V)函數(shù)：
*段曲線數(shù)據(jù)(壓強(qiáng)0.44-1.84Mpa) |
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P(Mpa) | 0.4410 0.5410 0.6410 0.7410 0.8410 0.9410 1.0410 1.1410 1.2410 1.3410 1.4410 1.5410 | |||||||
I(mA) | 4.0000 4.8178 5.4160 5.8262 6.0798 6.2083 6.2431 6.2157 6.1577 6.1004 6.0754 6.1142 | |||||||
P(Mpa) | 1.6410 1.7410 1.8410 | |||||||
I(mA) | 6.2481 6.5087 6.9275 | |||||||
ATOS阿托斯比例溢流閥第二段曲線數(shù)據(jù)-三次函數(shù)擬合結(jié)果(壓強(qiáng)1.89-7.69Mpa) |
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P(Mpa) | 1.8900 1.9900 2.0900 2.1900 2.2900 2.3900 2.4900 2.5900 2.6900 2.7900 2.8900 2.9900 | |||||||
I(mA) | 7.2099 7.3102 7.4074 7.5013 7.5921 7.6800 7.7649 7.8470 7.9264 8.0032 8.0774 8.1491 | |||||||
P(Mpa) | 3.0900 3.1900 3.2900 3.3900 3.4900 3.5900 3.6900 3.7900 3.8900 3.9900 4.0900 4.1900 | |||||||
I(mA) | 8.2185 8.2856 8.3505 8.4132 8.4740 8.5328 8.5899 8.6451 8.6987 8.7508 8.8013 8.8505 | |||||||
P(Mpa) | 4.2900 4.3900 4.4900 4.5900 4.6900 4.7900 4.8900 4.9900 5.0900 5.1900 5.2900 5.3900 | |||||||
I(mA) | 8.8984 8.9451 8.9906 9.0351 9.0787 9.1215 9.1634 9.2047 9.2455 9.2857 9.3255 9.3650 | |||||||
P(Mpa) | 5.4900 5.5900 5.6900 5.7900 5.8900 5.9900 6.0900 6.1900 6.2900 6.3900 6.4900 6.5900 | |||||||
I(mA) | 9.4043 9.4435 9.4826 9.5217 9.5610 9.6005 9.6404 9.6806 9.7213 9.7626 9.8046 9.8474 | |||||||
P(Mpa) | 6.6900 6.7900 6.8900 6.9900 7.0900 7.1900 7.2900 7.3900 7.4900 7.5900 7.6900 | |||||||
I(mA) | 9.8909 9.9355 9.9810 10.027 10.076 10.125 10.175 10.227 10.281 10.336 10.393 | |||||||
第三段曲線數(shù)據(jù)(壓強(qiáng)7.71-31.5Mpa) |
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P(Mpa) | 7.7175 7.8175 7.9175 8.0175 8.1175 8.2175 8.3175 8.4175 8.5175 8.6175 8.7175 8.8175 | |||||||
I(mA) | 10.367 10.408 10.448 10.488 10.529 10.569 10.610 10.650 10.691 10.731 10.772 10.812 | |||||||
P(Mpa) | 8.9175 9.0175 9.1175 9.2175 9.3175 9.4175 9.5175 9.6175 9.7175 9.8175 9.9175 10.018 | |||||||
I(mA) | 10.852 10.893 10.933 10.974 11.014 11.055 11.095 11.136 11.176 11.216 11.257 11.297 | |||||||
P(Mpa) | 10.1175 10.2175 10.3175 10.4175 10.5175 10.6175 10.7175 10.8175 10.9175 11.0175 11.1175 11.2175 | |||||||
I(mA) | 11.3377 11.3782 11.4186 11.4591 11.4995 11.5400 11.5804 11.6209 11.6613 11.7018 11.7422 11.7827 | |||||||
P(Mpa) | 11.3175 11.4175 11.5175 11.6175 11.7175 11.8175 11.9175 12.0175 12.1175 12.2175 12.3175 12.4175 | |||||||
I(mA) | 11.8231 11.8635 11.9040 11.9444 11.9849 12.0253 12.0658 12.1062 12.1467 12.1871 12.2276 12.2680 | |||||||
P(Mpa) | 12.5175 12.6175 12.7175 12.8175 12.9175 13.0175 13.1175 13.2175 13.3175 13.4175 13.5175 13.6175 | |||||||
I(mA) | 12.3085 12.3489 12.3893 12.4298 12.4702 12.5107 12.5511 12.5916 12.6320 12.6725 12.7129 12.7534 | |||||||
P(Mpa) | 13.7175 13.8175 13.9175 14.0175 14.1175 14.2175 14.3175 14.4175 14.5175 14.6175 14.7175 14.8175 | |||||||
I(mA) | 12.7938 12.8343 12.8747 12.9152 12.9556 12.9960 13.0365 13.0769 13.1174 13.1578 13.1983 13.2387 | |||||||
P(Mpa) | 14.9175 15.0175 15.1175 15.2175 15.3175 15.4175 15.5175 15.6175 15.7175 15.8175 15.9175 16.0175 | |||||||
I(mA) | 13.2792 13.3196 13.3601 13.4005 13.4410 13.4814 13.5218 13.5623 13.6027 13.6432 13.6836 13.7241 | |||||||
P(Mpa) | 16.1175 16.2175 16.3175 16.4175 16.5175 16.6175 16.7175 16.8175 16.9175 17.0175 17.1175 17.2175 | |||||||
I(mA) | 13.7645 13.8050 13.8454 13.8859 13.9263 13.9668 14.0072 14.0477 14.0881 14.1285 14.1690 14.2094 | |||||||
P(Mpa) | 17.3175 17.4175 17.5175 17.6175 17.7175 17.8175 17.9175 18.0175 18.1175 18.2175 18.3175 18.4175 | |||||||
I(mA) | 14.2499 14.2903 14.3308 14.3712 14.4117 14.4521 14.4926 14.5330 14.5735 14.6139 14.6543 14.6948 | |||||||
P(Mpa) | 18.5175 18.6175 18.7175 18.8175 18.9175 19.0175 19.1175 19.2175 19.3175 19.4175 19.5175 19.6175 | |||||||
I(mA) | 14.7352 14.7757 14.8161 14.8566 14.8970 14.9375 14.9779 15.0184 15.0588 15.0993 15.1397 15.1802 | |||||||
P(Mpa) | 19.7175 19.8175 19.9175 20.0175 20.1175 20.2175 20.3175 20.4175 20.5175 20.6175 20.7175 20.8175 | |||||||
I(mA) | 15.2206 15.2610 15.3015 15.3419 15.3824 15.4228 15.4633 15.5037 15.5442 15.5846 15.6251 15.6655 | |||||||
P(Mpa) | 20.9175 21.0175 21.1175 21.2175 21.3175 21.4175 21.5175 21.6175 21.7175 21.8175 21.9175 22.0175 | |||||||
I(mA) | 15.7060 15.7464 15.7868 15.8273 15.8677 15.9082 15.9486 15.9891 16.0295 16.0700 16.1104 16.1509 | |||||||
P(Mpa) | 22.1175 22.2175 22.3175 22.4175 22.5175 22.6175 22.7175 22.8175 22.9175 23.0175 23.1175 23.2175 | |||||||
I(mA) | 16.1913 16.2318 16.2722 16.3127 16.3531 16.3935 16.4340 16.4744 16.5149 16.5553 16.5958 16.6362 | |||||||
P(Mpa) | 23.3175 23.4175 23.5175 23.6175 23.7175 23.8175 23.9175 24.0175 24.1175 24.2175 24.3175 24.4175 | |||||||
I(mA) | 16.6767 16.7171 16.7576 16.7980 16.8385 16.8789 16.9193 16.9598 17.0002 17.0407 17.0811 17.1216 | |||||||
P(Mpa) | 24.5175 24.6175 24.7175 24.8175 24.9175 25.0175 25.1175 25.2175 25.3175 25.4175 25.5175 25.6175 | |||||||
I(mA) | 17.1620 17.2025 17.2429 17.2834 17.3238 17.3643 17.4047 17.4452 17.4856 17.5260 17.5665 17.6069 | |||||||
P(Mpa) | 25.7175 25.8175 25.9175 26.0175 26.1175 26.2175 26.3175 26.4175 26.5175 26.6175 26.7175 26.8175 | |||||||
I(mA) | 17.6474 17.6878 17.7283 17.7687 17.8092 17.8496 17.8901 17.9305 17.9710 18.0114 18.0518 18.0923 | |||||||
P(Mpa) | 26.9175 27.0175 27.1175 27.2175 27.3175 27.4175 27.5175 27.6175 27.7175 27.8175 27.9175 28.0175 | |||||||
I(mA) | 18.1327 18.1732 18.2136 18.2541 18.2945 18.3350 18.3754 18.4159 18.4563 18.4968 18.5372 18.5776 | |||||||
P(Mpa) | 28.1175 28.2175 28.3175 28.4175 28.5175 28.6175 28.7175 28.8175 28.9175 29.0175 29.1175 29.2175 | |||||||
I(mA) | 18.6181 18.6585 18.6990 18.7394 18.7799 18.8203 18.8608 18.9012 18.9417 18.9821 19.0226 19.0630 | |||||||
P(Mpa) | 29.3175 29.4175 29.5175 29.6175 29.7175 29.8175 29.9175 30.0175 30.1175 30.2175 30.3175 30.4175 | |||||||
I(mA) | 19.1035 19.1439 19.1843 19.2248 19.2652 19.3057 19.3461 19.3866 19.4270 19.4675 19.5079 19.5484 | |||||||
P(Mpa) | 30.5175 30.6175 30.7175 30.8175 30.9175 31.0175 31.1175 31.2175 31.3175 31.4175 | |||||||
I(mA) | 19.5888 19.6293 19.6697 19.7101 19.7506 19.7910 19.8315 19.8719 19.9124 19.9528 | |||||||
| *段曲線數(shù)據(jù)(壓強(qiáng)0.44-1.84Mpa) | |||||||||||
P | 0.441 | 0.541 | 0.641 | 0.741 | 0.841 | 0.941 | 1.041 | 1.141 | 1.241 | 1.341 | 1.441 | 1.541 |
U(V) | 0.000 | 0.511 | 0.885 | 1.141 | 1.300 | 1.380 | 1.402 | 1.385 | 1.349 | 1.313 | 1.297 | 1.321 |
P | 1.641 | 1.741 | 1.841 |
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U(V) | 1.405 | 1.568 | 1.830 |
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| 第二段曲線數(shù)據(jù)-三次函數(shù)擬合結(jié)果(壓強(qiáng)1.89-7.69Mpa) | |||||||||||
P | 1.890 | 1.990 | 2.090 | 2.190 | 2.290 | 2.390 | 2.490 | 2.590 | 2.690 | 2.790 | 2.890 | 2.990 |
U(V) | 2.006 | 2.069 | 2.130 | 2.188 | 2.245 | 2.300 | 2.353 | 2.404 | 2.454 | 2.502 | 2.548 | 2.593 |
P | 3.090 | 3.190 | 3.290 | 3.390 | 3.490 | 3.590 | 3.690 | 3.790 | 3.890 | 3.990 | 4.090 | 4.190 |
U(V) | 2.637 | 2.679 | 2.719 | 2.758 | 2.796 | 2.833 | 2.869 | 2.903 | 2.937 | 2.969 | 3.001 | 3.032 |
P | 4.290 | 4.390 | 4.490 | 4.590 | 4.690 | 4.790 | 4.890 | 4.990 | 5.090 | 5.190 | 5.290 | 5.390 |
U(V) | 3.062 | 3.091 | 3.119 | 3.147 | 3.174 | 3.201 | 3.227 | 3.253 | 3.278 | 3.304 | 3.328 | 3.353 |
P | 5.490 | 5.590 | 5.690 | 5.790 | 5.890 | 5.990 | 6.090 | 6.190 | 6.290 | 6.390 | 6.490 | 6.590 |
U(V) | 3.378 | 3.402 | 3.427 | 3.451 | 3.476 | 3.500 | 3.525 | 3.550 | 3.576 | 3.602 | 3.628 | 3.655 |
P | 6.690 | 6.790 | 6.890 | 6.990 | 7.090 | 7.190 | 7.290 | 7.390 | 7.490 | 7.590 | 7.690 |
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U(V) | 3.682 | 3.710 | 3.738 | 3.767 | 3.797 | 3.828 | 3.860 | 3.892 | 3.926 | 3.960 | 3.996 |
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| 第三段曲線數(shù)據(jù)(壓強(qiáng)7.71-31.5Mpa) | |||||||||||
P | 7.718 | 7.818 | 7.918 | 8.018 | 8.118 | 8.218 | 8.318 | 8.418 | 8.518 | 8.618 | 8.718 | 8.818 |
U(V) | 3.979 | 4.005 | 4.030 | 4.055 | 4.081 | 4.106 | 4.131 | 4.156 | 4.182 | 4.207 | 4.232 | 4.258 |
P | 8.918 | 9.018 | 9.118 | 9.218 | 9.318 | 9.418 | 9.518 | 9.618 | 9.718 | 9.818 | 9.918 | 10.02 |
U(V) | 4.283 | 4.308 | 4.333 | 4.359 | 4.384 | 4.409 | 4.434 | 4.460 | 4.485 | 4.510 | 4.536 | 4.561 |
P | 10.12 | 10.22 | 10.32 | 10.42 | 10.52 | 10.62 | 10.72 | 10.82 | 10.92 | 11.02 | 11.12 | 11.22 |
U(V) | 4.586 | 4.611 | 4.637 | 4.662 | 4.687 | 4.713 | 4.738 | 4.763 | 4.788 | 4.814 | 4.839 | 4.864 |
P | 11.32 | 11.42 | 11.52 | 11.62 | 11.72 | 11.82 | 11.92 | 12.02 | 12.12 | 12.22 | 12.32 | 12.42 |
U(V) | 4.889 | 4.915 | 4.940 | 4.965 | 4.991 | 5.016 | 5.041 | 5.066 | 5.092 | 5.117 | 5.142 | 5.168 |
P | 12.52 | 12.62 | 12.72 | 12.82 | 12.92 | 13.02 | 13.12 | 13.22 | 13.32 | 13.42 | 13.52 | 13.62 |
U(V) | 5.193 | 5.218 | 5.243 | 5.269 | 5.294 | 5.319 | 5.345 | 5.370 | 5.395 | 5.420 | 5.446 | 5.471 |
P | 13.72 | 13.82 | 13.92 | 14.02 | 14.12 | 14.22 | 14.32 | 14.42 | 14.52 | 14.62 | 14.72 | 14.82 |
U(V) | 5.496 | 5.521 | 5.547 | 5.572 | 5.597 | 5.623 | 5.648 | 5.673 | 5.698 | 5.724 | 5.749 | 5.774 |
P | 14.92 | 15.02 | 15.12 | 15.22 | 15.32 | 15.42 | 15.52 | 15.62 | 15.72 | 15.82 | 15.92 | 16.02 |
U(V) | 5.800 | 5.825 | 5.850 | 5.875 | 5.901 | 5.926 | 5.951 | 5.976 | 6.002 | 6.027 | 6.052 | 6.078 |
P | 16.12 | 16.22 | 16.32 | 16.42 | 16.52 | 16.62 | 16.72 | 16.82 | 16.92 | 17.02 | 17.12 | 17.22 |
U(V) | 6.103 | 6.128 | 6.153 | 6.179 | 6.204 | 6.229 | 6.255 | 6.280 | 6.305 | 6.330 | 6.356 | 6.381 |
P | 17.32 | 17.42 | 17.52 | 17.62 | 17.72 | 17.82 | 17.92 | 18.02 | 18.12 | 18.22 | 18.32 | 18.42 |
U(V) | 6.406 | 6.432 | 6.457 | 6.482 | 6.507 | 6.533 | 6.558 | 6.583 | 6.608 | 6.634 | 6.659 | 6.684 |
P | 18.52 | 18.62 | 18.72 | 18.82 | 18.92 | 19.02 | 19.12 | 19.22 | 19.32 | 19.42 | 19.52 | 19.62 |
U(V) | 6.710 | 6.735 | 6.760 | 6.785 | 6.811 | 6.836 | 6.861 | 6.887 | 6.912 | 6.937 | 6.962 | 6.988 |
P | 19.72 | 19.82 | 19.92 | 20.02 | 20.12 | 20.22 | 20.32 | 20.42 | 20.52 | 20.62 | 20.72 | 20.82 |
U(V) | 7.013 | 7.038 | 7.063 | 7.089 | 7.114 | 7.139 | 7.165 | 7.190 | 7.215 | 7.240 | 7.266 | 7.291 |
P | 20.92 | 21.02 | 21.12 | 21.22 | 21.32 | 21.42 | 21.52 | 21.62 | 21.72 | 21.82 | 21.92 | 22.02 |
U(V) | 7.316 | 7.342 | 7.367 | 7.392 | 7.417 | 7.443 | 7.468 | 7.493 | 7.519 | 7.544 | 7.569 | 7.594 |
P | 22.12 | 22.22 | 22.32 | 22.42 | 22.52 | 22.62 | 22.72 | 22.82 | 22.92 | 23.02 | 23.12 | 23.22 |
U(V) | 7.620 | 7.645 | 7.670 | 7.695 | 7.721 | 7.746 | 7.771 | 7.797 | 7.822 | 7.847 | 7.872 | 7.898 |
P | 23.32 | 23.42 | 23.52 | 23.62 | 23.72 | 23.82 | 23.92 | 24.02 | 24.12 | 24.22 | 24.32 | 24.42 |
U(V) | 7.923 | 7.948 | 7.974 | 7.999 | 8.024 | 8.049 | 8.075 | 8.100 | 8.125 | 8.150 | 8.176 | 8.201 |
P | 24.52 | 24.62 | 24.72 | 24.82 | 24.92 | 25.02 | 25.12 | 25.22 | 25.32 | 25.42 | 25.52 | 25.62 |
U(V) | 8.226 | 8.252 | 8.277 | 8.302 | 8.327 | 8.353 | 8.378 | 8.403 | 8.429 | 8.454 | 8.479 | 8.504 |
P | 25.72 | 25.82 | 25.92 | 26.02 | 26.12 | 26.22 | 26.32 | 26.42 | 26.52 | 26.62 | 26.72 | 26.82 |
U(V) | 8.530 | 8.555 | 8.580 | 8.606 | 8.631 | 8.656 | 8.681 | 8.707 | 8.732 | 8.757 | 8.782 | 8.808 |
P | 26.92 | 27.02 | 27.12 | 27.22 | 27.32 | 27.42 | 27.52 | 27.62 | 27.72 | 27.82 | 27.92 | 28.02 |
U(V) | 8.833 | 8.858 | 8.884 | 8.909 | 8.934 | 8.959 | 8.985 | 9.010 | 9.035 | 9.061 | 9.086 | 9.111 |
P | 28.12 | 28.22 | 28.32 | 28.42 | 28.52 | 28.62 | 28.72 | 28.82 | 28.92 | 29.02 | 29.12 | 29.22 |
U(V) | 9.136 | 9.162 | 9.187 | 9.212 | 9.237 | 9.263 | 9.288 | 9.313 | 9.339 | 9.364 | 9.389 | 9.414 |
P | 29.32 | 29.418 | 29.518 | 29.618 | 29.718 | 29.818 | 29.918 | 30.018 | 30.118 | 30.218 | 30.318 | 30.418 |
U(V) | 9.440 | 9.465 | 9.490 | 9.516 | 9.541 | 9.566 | 9.591 | 9.617 | 9.642 | 9.667 | 9.692 | 9.718 |
P | 30.52 | 30.62 | 30.72 | 30.82 | 30.92 | 31.02 | 31.12 | 31.22 | 31.32 | 31.42 |
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U(V) | 9.743 | 9.768 | 9.794 | 9.819 | 9.844 | 9.869 | 9.895 | 9.920 | 9.945 | 9.971 |
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注：電壓、電流型的曲線P、I、V均為百分比單位，需要換算成整數(shù)。
2、atos阿托斯比例溢流閥 由于是數(shù)字放大板對(duì)的控制閥，用Atos數(shù)字軟件，給比例溢流閥壓力從4，5，6…….25MPa的信號(hào)，將比例閥切換至開環(huán)模式，觀察壓力有無震蕩。
如無震蕩，就按下一曲線編程，即為一次正比例函數(shù)。
但低壓時(shí)存在超調(diào)現(xiàn)象，通過PID調(diào)整解決
由電氣技術(shù)員按上述方式編程完成調(diào)試。
二、如果通過以上打點(diǎn)反復(fù)測(cè)試，從4，5,，6…….25MPa的信號(hào)，壓力波動(dòng)無規(guī)律，則由液壓技術(shù)員和鉗工調(diào)整阻力螺釘，達(dá)到無波動(dòng)后在編程。
阻力螺釘調(diào)整規(guī)則如下：
2、阿托斯作先導(dǎo)閥與泰豐插件的匹配原則
主缸更換阻尼配置
X口——φ1.2短孔
F口——φ 0.8 長(zhǎng)孔
P口——φ 1.5短孔
頂缸更換阻尼配置
X口——φ1.0短孔
F口——φ0.8長(zhǎng)孔
P口——φ1.2短孔
注：阻力孔更換原則僅供參考，視具體情況而定
- 注意溫度的變化對(duì)壓力精度控制的影響，溫度越高油的濃度越稀，泄漏越嚴(yán)重，就會(huì)造成壓力控制精度不穩(wěn)定。
- 清潔度和油溫很重要，特別是油溫應(yīng)在40±5度的情況下,能使比例閥有一個(gè)很好的使用環(huán)境和穩(wěn)定性。
三個(gè)位置的阻尼孔的作用分別如下：
X口阻尼的作用是限制先導(dǎo)油的流量，因?yàn)楫?dāng)先導(dǎo)油路有油液流動(dòng)時(shí)，我們可以認(rèn)為X口兩端的壓差等于插件復(fù)位彈簧力，所以X口阻尼大小可以結(jié)合插件復(fù)位彈簧力以及我們所選的先導(dǎo)流量來確定（一般我們?nèi)∠葘?dǎo)流量在1L/min左右）。X口選擇短孔形式是因?yàn)槎炭淄ㄟ^流量受油溫影響較小，當(dāng)先導(dǎo)流量相對(duì)穩(wěn)定時(shí)，先導(dǎo)比例閥控制的壓力也相對(duì)穩(wěn)定，便于控制。
F口阻尼的作用是對(duì)插件的開啟和關(guān)閉起一定的阻尼作用，可以消除超調(diào)或者震蕩現(xiàn)象，F口阻尼的大小需要結(jié)合插件彈簧腔的大小來選取，目前我公司選用的NG25和NG32的插件，F口阻尼都可以選用0.8(阿托斯)、1.0(力士樂)左右。F口阻尼一定要選用長(zhǎng)孔形式，因?yàn)殚L(zhǎng)孔的阻尼效果明顯好于短孔。
P口阻尼的作用是對(duì)整個(gè)先導(dǎo)油路的流動(dòng)起一定阻尼作用（包括X口和F口的流量），P口阻尼的大小可以略大于P口，選用短孔形式。
