TÜRKÇE

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Sıkma Torku Sıkma torku birçok faktöre bağlıdır, ancak, diş üzerindeki sürtünme değeri çok önemlidir, hem de somunun dokunduğu alandaki sürtünme de etkilidir.  Ortalama sürtünme değeri,  µG? µK = 0.14 (diş ve kontak yüzeyi hafifçe yağlı ise) , sıkma torku  MA , ön yüklemeli  FM , hidrolik tork anahtarı belirtiliyor.  Tork anahtarında, yüzde ±10 luk sapma ile,  montaj torku MA'  hesaplanır.  Cıvatalarda, Sıkıştırma kuvveti ve sıkma torku, metrik şartnamelerde DIN 13 normuna göre , µG? µK = 0.14 Mukavemet Sınıfı  DlN/ISO 898:   8.8   10.9   12.9 Tablo 4a: Cıvatalar için sıkıştırma kuvvetleri ve sıkma torkları metrik şartnameye uygun dişlerde DIN 13 normuna göre, µG ? µK = 0.14 Mukavemet sınıfı , cıvata kalitesi DIN/ISO 898  8.8 Akma / Yield limit Rp 0,2 N/mm²   ? M 16 için 640  > M 16 için 660 Metrik ISO- diş Stres altındaki kesit alanı Dişin kesit alanı Sıkıştırma kuvveti Hidrolik ve elektrikli tork anahtarları için Klasik açık ağız anahtar için Ma' = 0.9 MD* DIN 13 AS mm² A3 mm² FM kN MA Nm MA' Nm M12 84.3 76.2 38.5 87 78 M14 115 105 53 140 126 M16 157 144 72 215 193 M18 193 175 91 300 270 M20 245 225 117 430 387 M22 303 282 146 580 522 M24 353 324 168 740 666 M27 459 427 221 1100 990 M30 561 519 270 1500 1350 M33 694 647 335 Akma ölçümüne göre cıvata üzerinden belirlenecektir. M36 817 759 395 M39 976 913 475 M42 1120 1045 542 M45 1300 1224 635 M48 1470 1377 714 M52 1760 1652 857 M56 2030 1905 989 M60 2360 2227 1156  Tablo 4b: Cıvatalar için sıkıştırma kuvvetleri ve sıkma torkları metrik şartnameye uygun dişlerde DIN 13 normuna göre, µG ? µK = 0.14   Mukavemet Sınıfı , cıvata kalitesi DIN/ISO 898  10.9 Akma / Yield limit Rp 0,2 N/mm²  940 Metric ISO- diş Cross section of area under stress Cross section of thread Clamping force For hydr. and electric torque wrench Ma' = 0.9 MD* for spanner DIN 13 AS mm² A3 mm² FM kN MA Nm MA' Nm M12 84.3 76.2 56 130 117 M14 115 105 77 205 184 M16 157 144 106 310 279 M18 193 175 129 430 387 M20 245 225 166 620 558 M22 303 282 208 830 747 M24 353 324 239 1060 954 M27 459 427 315 1550 1395 M30 561 519 385 2100 1890 M33 694 647 480 determined bolt through yield measurement M36 817 759 560 M39 976 913 670 M42 1120 1045 772 M45 1300 1224 905 M48 1470 1377 1018 M52 1760 1652 1221 M56 2030 1905 1408 M60 2360 2227 1647   Tabelle 4c: Clamping forces and tightening torques for bolts with metric regulation threads DIN 13, für µG ? µK = 0.14 DIN/ISO 898  12.9 Yield limit Rp 0,2 N/mm²  1100 Metric ISO- thread Cross section of area under stress Cross section of thread Clamping force For hydr. and electric torque wrench Ma' = 0.9 MD* for spanner DIN 13 AS mm² A3 mm² FM kN MA Nm MA' Nm M12 84.3 76.2 66 150 135 M14 115 105 90 240 216 M16 157 144 124 370 333 M18 193 175 151 510 459 M20 245 225 194 720 648 M22 303 282 243 970 873 M24 353 324 280 1240 1116 M27 459 427 370 1850 1665 M30 561 519 450 2500 2250 M33 694 647 560 determined bolt through yield measurement M36 817 759 660 M39 976 913 790 M42 1120 1045 904 M45 1300 1224 1059 M48 1470 1377 1191 M52 1760 1652 1429 M56 2030 1905 1648 M60 2360 2227 1927   * = MA will change with deviating µG or µK

Tightening torque The tightening torque is dependent on many factors, in particular however on the friction value in the thread, as well as on the head respectively the nut contact area. For a medium friction value of µG? µK = 0.14 (threads and contact surface is lightly oiled) the tightening torque MA to pre-load FM for the hydraulic torque wrench is indicated. Considering a divergence of ±10% the assembly torque MA' has been determined for the torque spanner. Clamping forces and tightening torques for bolts with metric regulation threads DIN 13, for µG? µK = 0.14 Strength class to DlN/ISO 898:   8.8   10.9   12.9 Table 4a: Clamping forces and tightening torques for bolts with metric regulation threads DIN 13, for µG ? µK = 0.14 Strength class to DIN/ISO 898  8.8 Yield limit Rp 0,2 N/mm²  640 for ? M 16  660 for > M 16 Metric ISO- thread Cross section of area under stress Cross section of thread Clamping force For hydr. and electric torque wrench Ma' = 0.9 MD* for spanner DIN 13 AS mm² A3 mm² FM kN MA Nm MA' Nm M12 84.3 76.2 38.5 87 78 M14 115 105 53 140 126 M16 157 144 72 215 193 M18 193 175 91 300 270 M20 245 225 117 430 387 M22 303 282 146 580 522 M24 353 324 168 740 666 M27 459 427 221 1100 990 M30 561 519 270 1500 1350 M33 694 647 335 determined bolt through yield measurement M36 817 759 395 M39 976 913 475 M42 1120 1045 542 M45 1300 1224 635 M48 1470 1377 714 M52 1760 1652 857 M56 2030 1905 989 M60 2360 2227 1156   Tabelle 4b: Clamping forces and tightening torques for bolts with metric regulation threads DIN 13, for µG ? µK = 0.14 Strength class to DIN/ISO 898  10.9 Yield limit Rp 0,2 N/mm²  940 Metric ISO- thread Cross section of area under stress Cross section of thread Clamping force For hydr. and electric torque wrench Ma' = 0.9 MD* for spanner DIN 13 AS mm² A3 mm² FM kN MA Nm MA' Nm M12 84.3 76.2 56 130 117 M14 115 105 77 205 184 M16 157 144 106 310 279 M18 193 175 129 430 387 M20 245 225 166 620 558 M22 303 282 208 830 747 M24 353 324 239 1060 954 M27 459 427 315 1550 1395 M30 561 519 385 2100 1890 M33 694 647 480 determined bolt through yield measurement M36 817 759 560 M39 976 913 670 M42 1120 1045 772 M45 1300 1224 905 M48 1470 1377 1018 M52 1760 1652 1221 M56 2030 1905 1408 M60 2360 2227 1647   Tabelle 4c: Clamping forces and tightening torques for bolts with metric regulation threads DIN 13, für µG ? µK = 0.14 Strength class to DIN/ISO 898  12.9 Yield limit Rp 0,2 N/mm²  1100 Metric ISO- thread Cross section of area under stress Cross section of thread Clamping force For hydr. and electric torque wrench Ma' = 0.9 MD* for spanner DIN 13 AS mm² A3 mm² FM kN MA Nm MA' Nm M12 84.3 76.2 66 150 135 M14 115 105 90 240 216 M16 157 144 124 370 333 M18 193 175 151 510 459 M20 245 225 194 720 648 M22 303 282 243 970 873 M24 353 324 280 1240 1116 M27 459 427 370 1850 1665 M30 561 519 450 2500 2250 M33 694 647 560 determined bolt through yield measurement M36 817 759 660 M39 976 913 790 M42 1120 1045 904 M45 1300 1224 1059 M48 1470 1377 1191 M52 1760 1652 1429 M56 2030 1905 1648 M60 2360 2227 1927   * = MA will change with deviating µG or µK