Expand Calculation of Common Special-shaped Pipe Platforms
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Expand Calculation of Common Special-shaped Pipe Platforms

Views: 27     Author: Site Editor     Publish Time: 2024-03-18      Origin: Site

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Expand Calculation of Rectangular Curved Mask

As shown in the figure, the bottom opening of the rectangular curved mask is rectangular. The left and right side panels and the front and rear panels are all composed of arc panels with radius R. If the dimensions A and B of the neutral layer of the bottom opening and the radius R of the arc surface are known, the calculation can be carried out. The formula is:

Expand Calculation

Expansion Calculation of Variable Diameter Elliptical Cone

As shown in the figure, the variable diameter truncated cone is composed of two 1/2 right truncated conical tubes and side vertical plates. The known dimensions are R, r, A, and H. Calculate according to the size of the neutral layer, and then start the calculation The formula is:

Expand Calculation


Expand Calculation

Expansion Calculation of Dome Slender Truncated Cone

As shown in the figure, the domed slender truncated cone is composed of an oblique conical tube and a triangular plane. The known dimensions are R, r, h, t and L. The expansion calculation formula is:

Expand Calculation

Expand Calculation

Expansion Calculation of Oblong Right-angle Commutator

As shown in the figure, it is a rectangular commutator with known dimensions R and h.

Expand Calculation

Expansion Calculation of Variable Diameter Connecting Pipes at Any Angle

As shown in the figure, the variable diameter connecting pipe at any angle, commonly known as the inclined horse, generally only requires the upper and lower calibers and related dimensions at the site. There are no requirements for the curved surface of the pipe body. It is not a beveled conical pipe or an oblique conical pipe. Therefore, it cannot be Expand using the above two tube expansion methods. The coil line (the plain lines and dotted lines connected end to end) created by the calculation in this example is not a true straight line. The calculated values are generally approximate, but the difference is very small and does not affect the quality of the component. Given the radii R and r of the upper and lower neutral layers, the off-centre distance y and the top orifice bevel angle 8, the expansion calculation formula is:

Expand Calculation

Expansion Calculation of Dome Square Base Platform

As shown in the figure, the dome square bottom connecting pipe is composed of four oblique conical surfaces and four triangular planes. The known dimensions are the circle outer diameter D, the square outer opening A, the height H and the plate thickness t; the expanded dimensions are a, d, h, f, then the expansion calculation formula is:

Expand Calculation

Expansion Calculation of Dome Rectangular Base

As shown in the figure, the rectangular base of the dome is composed of four congruent oblique conical surfaces and four symmetrical triangular planes. The known external dimensions are A, D, H and the plate thickness t; the expanded dimensions are a, d, h. , f, then the expansion calculation formula is:

Expand Calculation

Expand Calculation

Expand Calculation

Expansion Calculation of Round-square Eccentric Transition Connecting Pipe

As shown in the figure, the diameter of the top circle, the size of the bottom square, and the equal eccentric transition connecting pipe are known. The known dimensions are the middle diameter d of the top circle, the inner opening a of the bottom square, the height h, and the eccentricity y. The calculation formula is:

Expand Calculation

Expand Calculation

Expansion Calculation of Round, Rectangular and Right-angled Transition Connecting pipes

The round rectangular right-angle transition connecting pipe is composed of two different taper partial oblique conical surfaces and four triangular planes, with square corners as the top of the cone. See Figure 3-34. Dome 6 is the highest transition point. 0 is the lowest point. The tangent points é and k (not on the horizontal diameter of the circle) are the dividing points between flat and curved surfaces. The line connecting this point and the bottom corner point is the dividing line between flat and curved surfaces. When unfolding the sample, it is necessary to accurately find the k and k' points, and do not replace them with the diameter endpoint 3. The known dimensions in the figure are d, a, b, h and l.

Expand Calculation

Expansion Calculation of Domed Square Bottom Trouser-shaped Tee Pipe

The two legs of the dome-shaped square-bottomed trousers-shaped tee pipe are joined by waist-circle lines with R as the radius, as shown in Figure 3-35. The known dimensions are the side length A of the square outer opening, the outer diameter D of the circle, the plate thickness t, the height H and the distance between the two legs l. The expanded sample dimensions are a, d, h, and f.

Calculation formula:

Expand Calculation

Expand Calculation

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