Thick steel plate coil round calculation formula, steel plate roll size calculation

Knowing the circumference of the circle (plate length = circumference of the circle), find the radius or diameter of the circle.

Circumference = diameter of the circle (r) (diameter r = circumference of the circle = length of the steel plate Due to the poor tempering stability, when carbon steel is quenched and tempered, a lower tempering temperature is required to ensure higher strength, so that the toughness of the steel is low; In order to ensure good toughness, the strength is low when the tempering temperature is high, so the comprehensive mechanical properties of carbon steel.

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There can be two ways:

1. Weigh the total weight, and then weigh the mass of the 1-meter-long steel plate, and divide the total weight by the mass of 1-meter-long steel plate to be the length of the steel plate;

2. Measure the thickness of the steel plate d, the inner diameter d1 and the outer diameter d2 after rolling, and use the calculation formula of the circumference and diameter of the circle to obtain the length of the sheet metal as follows:

where (d2-d1) d is the number of turns of the coil.

FUDA-100 CNC punch is a high-speed punch with a punching force of 10 tons, the punch can reach 200 minutes, under this high punch, each punching hole can reach up to 30mm: it can punch and cut, you can use a single-head mold, or a multi-head mold, and the automatic mold change time is less than 4s; The main power of this machine tool adopts mechanical transmission, high-quality steel plate welded body, after aging treatment, finishing is completed, it depends on what shape of the steel plate you punch, and you need to calculate the perimeter of the steel plate you punch. Then you can know if you calculate it.

1 cm thick, 120 cm in diameter, calculate the weight.

Dear, hello, I am glad to answer for you, the formula for calculating the size of the steel plate coil circle is the perimeter = the diameter of the circle (r) (the practical and simple formula for calculating the length of the diameter of the coil, the length of the coil = the diameter of the circle that needs to be rolled - the thickness of the plate) x, (d-t) where d is the outer diameter, t is the thickness of the wall. The outer diameter of the steel is stretched and lengthened, and the inner diameter is compressed and shortened. Roll round is a forming method that bends the sheet into a close to a closed cylinder.

The definition of a circle, usually a compass is used to draw a circle. The length of the radius of the circle within the circle is always the same as that of the circle, and the circle has an infinite number of radii and an infinite number of diameters. A circle is an axisymmetric, center-symmetrical figure.

The axis of symmetry is the straight line where the diameter is located. At the same time, the circle is a "positive infinite polygon", and "infinity" is just a concept. When the polygon has more sides, its shape, circumference, and area are closer to a circle (which is why people say that a circle is just a regular polygon).

So, there is no real circle in the world, and the circle is really just a conceptual figure. The circle was discovered by the ancient Greek mathematician Pythagoras.

The length of the steel coil is equal to the area of the torus divided by the thickness of the steel plate, so the length of the steel coil =, where r is the outer radius, r is the inner radius, h is the thickness of the plate, and the units are all millimeters, so the length obtained is also in millimeters, and the number of meters to get is divided by 1000.

So the number of meters =, where the values of r, r, and h are all in millimeters.

The formula can also be changed to a reputation crack line:

Meters = if let h=r-r, i.e. h is the thickness of the whole roll, d=2r, i.e. d is the inner diameter. Then r+r=2r+h=d+h, so the equation can again become:

Meters = where the inner diameter d, the thickness h of the whole roll, and the thickness of the plate h are all millimeters. Therefore, as long as the inner diameter and the overall thickness of the coil are measured, and the thickness of the plate is known, the length of the coil can be calculated.

National standard for steel plate thickness deviation.

According to the standards stipulated by the state, the thickness deviation of the general steel plate can be positive and negative. The steel plate is divided according to the thickness, the thin steel plate is less than 4mm, the thick steel plate is between 4 and 60mm, and the extra thick steel plate is 60 to 115mm. The normal steel plate source slip type is divided into hot-rolled and cold-rolled.

Thin plates are divided according to the type of steel plate, and the commonly used steel plates are generally divided into general steel, high-quality steel, alloy and spring steel.

Seven types of stainless steel, tool steel, heat-resistant, etc.; According to professional use, it is divided into 3 types of oil drums; There are four types of surface coatings.

Most of the types of thick steel plates are the same as thin steel plates, and they all have their own types of steel plates. From all aspects, in addition to the varieties used in bridges, boilers, automobile manufacturing, pressure vessels and multi-layer high-pressure vessels, those such as automobile girder steel plates, patterned stainless steel plates and heat-resistant steel plates are crossed with thin plate steel.

The cutting length of the steel plate when it is rolled is actually to find the circumference of the circle. Circumference of the circle = diameter x. If the diameter given is the outer diameter of the circle, then the thickness of one board needs to be subtracted, and if the diameter given is the inner diameter of the circle, the thickness of the stool needs to be added.

This is because when the steel plate is bent, the outer stretch of the steel plate becomes longer, and the inner shrinkage of the steel plate becomes smaller, and only the middle of the steel plate thickness is unchanged, so the middle diameter should be used when calculating. In addition, the width of the blanking should be determined according to the width of the bending machine.

Knowing the circumference of the circle (plate length = circumference of the circle), find the radius or diameter of the circle. Circumference = diameter of the circle (r) (diameter r = circumference of the circle = length of the steel plate Due to the poor tempering stability, when carbon steel is quenched and tempered, in order to ensure the strong carrying degree of higher distribution, a lower tempering temperature needs to be used, so that the toughness of the steel is low; In order to ensure good toughness, the strength is low when the tempering temperature is high, so the comprehensive mechanical properties of carbon steel are not high.

Hello! There can be two ways:1

Weigh the total weight, and then weigh the mass of the 1-meter-long steel plate, and divide the total weight by the mass of 1 meter long is the sheet length of the Hezhuan steel plate; 2.Measure the thickness of the steel plate d, the inner diameter d1 and the outer diameter d2 after rolling, and use the calculation formula of the circumference of the circumference and the diameter, and the length of the sheet can be calculated as follows

Dear users, the calculation of the size of the steel plate coil usually needs to consider the following factors: curl diameter: curl diameter refers to the outer circle diameter formed after the steel plate is rolled into a circle, and its calculation formula is:

d=2(r+t), where d represents the curling diameter, r represents the inner circle radius of the steel plate before curling, and t represents the thickness of the steel plate. Circumference length: Circumference length refers to the outer circumference formed by the curling of the steel plate, and its calculation formula is:

l = d, where l is the length of the circumference, d is the curl diameter, and is the pi, approximately equal to. Steel plate length: The steel plate length refers to the original length of the steel plate before it is curled into a circle, and its calculation formula is:

l0= (r+t)n, where l0 represents the length of the steel plate, and r, t, and n have the same meaning. It should be noted that in actual operation, due to the influence of manufacturing errors, material expansion and other factors, there may be certain errors in the calculated size. Therefore, when calculating the size of the steel plate coil, it is necessary to make appropriate adjustments according to the specific situation.

If you need to know more about the calculation of the size of the steel plate coil or have other related questions, please feel free to ask me the key questions, and I will try my best to answer for you.