擴(kuò)管長(zhǎng)度系數(shù)

成品
外徑

457

508

530

559

610

630

660

711

762

814

864

914

965

1016

1067

1118

1168

1219

原管
外徑

325

0.751

0.680

0.653

0.621

0.573

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\

\

\

\

\

\

\

\

\

\

\

\

340

0.783

0.709

0.681

0.648

0.597

0.579

\

\

\

\

\

\

\

\

\

\

\

\

356

0.819

0.741

0.711

0.677

0.623

0.605

\

\

\

\

\

\

\

\

\

\

\

\

377

0.865

0.782

0.751

0.714

0.658

0.638

0.611

\

\

\

\

\

\

\

\

\

\

\

406

0.928

0.839

0.806

0.766

0.705

0.684

0.655

0.611

\

\

\

\

\

\

\

\

\

\

426

0.972

0.878

0.844

0.802

0.738

0.716

0.685

0.639

0.599

\

\

\

\

\

\

\

\

\

457

\

0.939

0.902

0.857

0.789

0.765

0.732

0.683

0.640

0.601

\

\

\

\

\

\

\

\

508

\

\

0.998

0.949

0.873

0.846

0.809

0.754

0.706

0.664

0.628

0.596

\

\

\

\

\

\

530

\

\

\

0.988

0.909

0.881

0.843

0.785

0.735

0.691

0.653

0.620

\

\

\

\

\

\

559

\

\

\

\

0.956

0.927

0.887

0.826

0.773

0.727

0.687

0.651

0.619

\

\

\

\

\

610

\

\

\

\

\

\

0.964

0.898

0.840

0.789

0.746

0.707

0.672

0.640

0.611

\

\

\

630

\

\

\

\

\

\

0.994

0.926

0.867

0.814

0.769

0.729

0.693

0.660

0.630

0.603

\

\

660

\

\

\

\

\

\

\

0.968

0.906

0.851

0.804

0.762

0.724

0.689

0.658

0.630

0.605

\

711

\

\

\

\

\

\

\

\

0.973

0.913

0.863

0.818

0.777

0.740

0.706

0.676

0.649

0.623

762

\

\

\

\

\

\

\

\

\

0.976

0.922

0.873

0.829

0.790

0.754

0.721

0.692

0.665

219

273

299

325

356

377

406

426

219

\

0.842

0.772

0.714

0.655

0.621

0.579

273

\

\

0.953

0.880

0.807

0.764

0.712

0.681

299

\

\

\

0.960

0.880

0.833

0.776

0.742

325

\

\

\

\

0.953

0.902

0.840

0.803