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- بررسي دقيق پروژه نسبت به شرايط و سيال مورد استفاده
- محاسبات اوليه و ارائه نقشه هاي پايه (Base Drawing)
- تنظيم QCTM ) Quality Control & Testing Manual )
- تنظيم دستورالعملهاي مربوط به جوشهايWPS & WPQ) Butt weld , Fillet Weld , Groove Weld )
- رسم و ارائه نقشه هاي ساخت و كارگاهي (Shop Drawing)
- بررسي و تهيه مواد اوليهء داراي (Certificate)
- اجراي مراحل برشكاري، خم كاري
)
- - اجراي عمليات نقاشي در لايه ها و ضخامت مورد نياز مطابق با شرايط رنگ مورد نظر
- تست جوش و استحکام
| 
but in no case less than the following |
Mean diameter of tank feet |
| Plate thickness inches |
Smaller than 50 ………………………………………………………………….. 3/16 50 to 120. excl. …………………………………………………………………... 1/4 120 to 200. incl. ………………………………………………………………….. 5/16 Over 200 ……………………………………………………………………...….. 3/8 |
|  but not less than 3/16 in.
Maximum t = 1/2 in. Maximum q = 37 deg. 9:12 slope Minimum q = 9 deg. 28 min. 2:12 slope |
| t = R 200 but not less than 3/16 in.
Maximum t = 1/2 in. R = radius of curvature of roof. In feet Maximum R = 0.8 D (unless otherwise specified by the purchaser. Maximum R = 1.2 D |
| The cross-sectional area of the top angle plus the participating area of the shell and roof plate shall be equal or exceed the following: |
For Self-Supporting Cone Roofs: 
| For Self-Supporting Dome and Umbrella Roofs: 
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BOTTOM | All bottom plates shall have a minimum nominal thickness of 1/4 in. |
+ نوشته شده در یکشنبه بیست و هشتم مرداد 1386ساعت 13:42 توسط محمد ابوترابی |
نظر بدهید HEMISPHERICAL | ELLIPSOIDAL | ASME FLANGED & DISHED (TORISPHERICAL HEAD) |
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D = inside diameter of hemispherical and ellipsoidal heads, outside diameter of ASME flanged & dished heads. | d = 0.8 D (approx.) R = 0.9 D (approx.) r = 0.173 D (approx.) | h = inside depth of F & D heads L(R) = inside radius of dish of ASME flanged & dished heads as used in formulas for internal or external pressure. r = inside knuckle radius of ASME flanged & dished heads. |
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کامل شده فرمولها
+ نوشته شده در یکشنبه بیست و هشتم مرداد 1386ساعت 13:40 توسط محمد ابوترابی |
نظر بدهید INTERNAL PRESSURE |
FORMULAS IN TERMS OF INSIDE DIMENSIONS | FORMULAS IN TERMS OF OUTSIDE DIMENSIONS |
| CYLINDRICAL SHELL | 
| CYLINDRICAL SHELL |
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| SPHERE and HEMISPHERICAL HEAD | 
| SPHERE and HEMISPHERICAL HEAD |
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| 2:1 ELLIPSOIDAL HEAD | 
| 2:1 ELLIPSOIDAL HEAD |
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| CONE and CONICAL SECTION | 
| CONE and CONICAL SECTION |
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| ASME FLANGED AND DISHED HEAD (TORISPHERICAL HEAD) | 
| ASME FLANGED AND DISHED HEAD (TORISPHERICAL HEAD) |
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+ نوشته شده در یکشنبه بیست و هشتم مرداد 1386ساعت 13:39 توسط محمد ابوترابی |
نظر بدهید + نوشته شده در یکشنبه بیست و هشتم مرداد 1386ساعت 13:38 توسط محمد ابوترابی |
نظر بدهید 
