?????? ?????? ?????? ??????? ???????? ????? ????? ????????
????? ???????:
??? ???? ?? ???????? ??????? ?????? ?????? ?????? ???? ??????? ??????? ?????? ?????? ???? ??????? ????? ?????? ????? ????? ???? ???? ????? ??? ?????? ??????? ?? ???? ?????? ??????.
?????????:
specification | minimum mean inside diameter （mm） | minimum inner wall thickness（mm） | minimum multilayer wall thickness （mm） | Maximum thread pitch（mm） |
300 | 294 | 2.5 | 4.0 | 55 |
400 | 392 | 3.0 | 4.5 | 65 |
500 | 490 | 3.5 | 5.0 | 75 |
600 | 588 | 4.0 | 6.0 | 85 |
700 | 673 | 4.0 | 6.0 | 110 |
800 | 785 | 4.5 | 6.5 | 120 |
900 | 885 | 5.0 | 7.0 | 135 |
1000 | 985 | 5.0 | 7.0 | 150 |
1100 | 1085 | 5.0 | 7.0 | 165 |
1200 | 1185 | 5.0 | 7.0 | 180 |
1300 | 1285 | 5.0 | 7.0 | 190 |
1400 | 1385 | 5.0 | 7.0 | 200 |
1500 | 1485 | 5.0 | 7.0 | 210 |
1600 | 1585 | 5.0 | 7.0 | 210 |
1800 | 1785 | 5.0 | 7.0 | 210 |
2000 | 1985 | |||
2200 | 2185 | |||
???????:
1.?????? ??????? ??????? ???? ??????
???? ??????? ????? ???????? ?????? ?????? ???? ?????? ?????? ???? ??????? ??? ???????? ????? ????? ????? ??????? ???????? ??????? ??????? ?????? ???? ???? ????? ???? ???? ??????? ?? ???? ?????? ??? ??????.
2.???? ????? ???????? ???????? ????? ? ???? ????? ?????
?????? ???? ????? ?????? ?????? ???? ???? ??????? ?????? ??? ?????? ????? ????? ???????? ??? ?????? ????? ???? ?????? ?? ????? ?????? ???? ???????? ?????? ?????? ?????? ?? ??????
3.?????? ????? ?????? ??????
??????? ?????? ?????? ??? ???????? ????? ????? ???? ?????? ?????? ??????? ??????? ????? ????? ????????? ???? ????? ??? ?? ?????? ???????? ??? ??????? ???? ?????? ???? ???????? ??????? ?????? ?? ?????? ???? ???? ?????? ?????????????? ????? ??? ????? ????????.
4.????? ?????? ??????? ??????? ??????? ?????
???? ????? ??????? ?????? ??????? ?????? ?????? ?????? ?????? ??????? ????? ????? ???????? 0.009=n ???? ?????? ????? ???? ????? ??? 30% ???? ?? ??????? ???????? ??? ??? ??????.
5.??? ?? ????? ????? ?? ???????
???? ?????? ?????? ?????? ?????? ?????? ??????? ????? ????? ???????? ?? ??? ???? ???? ???????? ???? ??? ???? ????? ?? ??????? ?????? ???????? ????????. ????? ???? ???? ???? ???? ???? ???? ????????? ?????? ??????? ???????.
6.??????? ?? ?????? ?????? ??????
???? ?????? ?????? ?????? ?????? ??????? ????? ????? ???????? ???????? ????? ??? ??????? ????????? ?????? ???? ????? ?????? ??? ?????? ??????? ???????? ???? ????? ????? ?????? ????? ?????? ????????. ???? ??? ??? ?? ????? ????? ?????? ????? ???????? ????????? ???????????? ?????? ???????? ????? ???? ????? ??????? ????????.
7.?????? ????????? ???????????
Item | Requirements | Test method | |
Ring stiffness KN/m2 | SN8 | >=8 | GB/T9647 |
SN10 | >=10 | ||
SN12.5 | >=12.5 | ||
SN16 | >=16 | ||
Tensile strength of pipe laminate/N | 500>=DN/ID>=300 | >=600 | GB/T 8804 |
800>=DN/ID>=600 | >=840 | ||
1200>=DN/ID>=900 | >=1020 | ||
2000>=DN/ID>=1300 | >=1460 | ||
2600>=DN/ID>=2200 | >=1600 | ||
Impact-resistance strength(TIR)/% | ≤10 | GB/T 14152 | |
Peeling strength(23℃±2℃)/N/cm | ≥100 | ||
Loop flexibility | No crack, no delamination | GB/T 9647 | |
Oven test | No crack, no delamination | ||
Creep ratio | ≤2 | GB/T 18042 | |
