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<>1. In the schematic diagram, D is the inner diameter of the round pipe, A is the angle of the elbow, R is the corner radius of the center line of the elbow, L1 and L2 are the lengths of the two end sections respectively, and B is the thickness of the plate. 180> a>0,d, b>0,r>=d, if the pipeline is narrow, it is allowed, but the pipeline resistance will increase. The above data is determined by the operator and entered.
2. The elbow must be divided into T section blanking, the value of T is input to the actual number of sections, and the calculation is calculated by half a section at both ends, and calculated by a section in the middle, that is, the turning angle of each section is a (T-1). t must be an integer, 3<=t<=30, the larger the value of t, the smoother the elbow, but the workload and cost increase, generally take 15< = a (t-1) < = 25.
3. There are two ways to calculate the intersection line of the round pipe of this component, one is to calculate the cutting length of each element line of the bevel with the radius from the center of the circle to the center of the plate, that is, the "middle diameter of the plate"; One is to calculate the length of each prime line of the high-end bevel with the inner radius, and calculate the length of each prime line of the low-end bevel with the outer radius, that is, the "correction radius" method. If the plate is thin or the plate is thick, but the groove is based on the center line of the plate, it is recommended to use the middle diameter of the plate to cut the material; If the plate is thick and the component does not bevel, it is recommended to use the correction radius method to cut the material, otherwise the weld will be wider and the angle will be larger when splicing.
4. This figure is an approximate method, and the circumference of the round pipe must be divided into n equal parts to calculate the actual length of each line segment. The value of n is determined by the operator according to the diameter size and accuracy requirements, but the integer multiple of 4 must be taken, the larger the value of n, the higher the accuracy of the figure, but the workload of drawing increases accordingly. Generally take n = 16 36 with manual line drawing can be more accurate blanking, with CNC cutting machine cutting or engraving machine press 1:
1. Draw a template, and the n value can be larger.
5. The figure adopts the parallel line method to loft and unload, that is, the whole round pipe is divided into several parallel lines for calculation and lofting. The output data is different according to the different blanking methods, if the plate blanking is selected, the length and the intersection length are calculated with the center of the plate as the diameter, and the operator can directly draw the line on the plate according to the figure and related data; If the finished pipe is selected, the outer diameter of the round pipe plus the thickness of the sample material is calculated as the diameter, and the sample is loaded and unloaded according to the relevant data, and then the sample is wrapped in the finished pipe and drawn under the line. Specifically, you can refer to the schematic diagram and stake out according to the following method (taking the half-saving material at both ends as an example):
1) Draw an arbitrary line segment, the length is equal to S, divide the line segment into n equal parts, and the length of each part is equal to M.
2) Draw the vertical line of each equal point segment, and measure the length of ha(1) ha(n 2+1) on each vertical line according to the figure.
3) Connect the points with smooth curves, which is the diagram of the round pipe.
4) The middle section has a total of n-2 sections, and the size of each section is the same, which is the size of the combined half section at both ends, which can be drawn with reference.
5) When the whole elbow is blanked, you can refer to the elbow discharge schematic diagram to discharge and lofting, which can save materials.
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Calculation of elbows, tees, round places, etc.
Stakeout, and so on. It is recommended that you use software on your computer to automate the automation.
It's easy to get the job done.
Rigid CAD is the most popular.
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Bridge 45 degree horizontal elbow, bridge 90 degree horizontal elbow (two 45 degree horizontal elbows), how to avoid obstacles, and formula calculation.
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Summary. 200 200 horizontal 90 degree elbow making step pro! Hello, glad to answer for you. 1. The practice is as follows:
1. The length of the bottom edge (bottom hypotenuse) after the bending of the bridge can be the same length as the width of the bridge, but the range is controlled at 100 400mm.
2. Select two points of this length, draw two vertical lines relative to the bottom edge on the side of the bridge, and select the bending direction of the bridge as the cutting opening side.
3. Select the open side as the bottom edge, and draw the two vertical lines as the middle line of the two isosceles triangles, and the formula for determining the length of the bottom edge of the isosceles triangle is l 2 (bridge height.
Second, a cable tray horizontal 90 degree elbow production method, it is characterized in that: the bottom plate of a section of bridge in the middle is cut into an isosceles trapezoid, and the two sides of the bridge that are connected with the isosceles trapezoidal bottom plate are rectangular, and then the bridge at both ends is interchangeable, and a section of bridge in the middle is docked respectively, and finally welded and fixed. Hope mine can help you!
Do you have any other questions?
200 200 horizontal 90 degree elbow making steps.
Good. 200 200 horizontal 90 degree elbow making step pro! Hello, glad to answer for you.
First, the practice is as follows: 1, the bottom edge length (bottom hypotenuse) after the bending of the bridge can be the same length as the width of the bridge, but the range is controlled at 100 Select the two points of this length, draw two vertical lines relative to the bottom edge on the side of the bridge, and select the bending direction of the bridge as the cutting opening side. 3. Select the open side as the bottom edge, and draw the two vertical lines as the middle line of the two isosceles triangles, and the formula for determining the length of the bottom edge of the isosceles triangle is l 2 (bridge height.
Second, a cable tray horizontal 90 degree elbow production method, it is characterized in that: the bottom plate of a section of bridge in the middle is cut into an isosceles trapezoid, and the two sides of the bridge are rectangular respectively connected with the isosceles trapezoidal bottom plate, and then the bridge at both ends is interchangeable left and right, and is docked with a section of bridge in the middle respectively, and finally welded and fixed. Hope mine can help you!
Do you have any other questions about the size?
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Many builders of power plants, steel mills, and cement plants need to make 90-degree elbows for pipeline bending connections in pipeline installation, so how to make 90-degree elbows? First of all, we must first stake out the drawing according to the specific requirements of the elbow excitation town, and I will take the 500 elbow production process as an example to illustrate the Sun lead state.
First, draw the structure diagram of the elbow according to the data of the inner diameter of the elbow 500 bending radius r=500, and then carry out the structural drawing after the structural drawing, and loft out the end screenshot and middle screenshot data of the elbow.
<>Second, according to the data on the drawings, the coiled steel pipe is marked and segmented, and the gas cutter is cut and formed according to the data of the marking segment.
Thirdly, the measurement angle and bending radius of the elbow of the team fully meet the data requirements of the source drawings of the bend for welding, the welding surface is smooth, and the width of the weld is consistent.
Fourth, after the welding is completed, the internal and external grinding is carried out, and the surface is cleared of welding flow welding slag, so that a 90-degree elbow is made.
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The steps to make a 90-degree elbow are as follows:The first type: push the elbow, cut the steel pipe to a fixed length, put it on the push machine and heat form.
The second type: welding Zheng pat elbow, draw a fixed shape and size of the steel plate, press out the shape of half an elbow on the press, and weld the two pieces together.
The third type: stamping elbow (also known as cold push elbow) This production process has been used by Ji Mengqing on the book without shouting Zhixian, using an irregular fixed size of the round pipe in the mold to extrude into the shape of an elbow, and then put in the steel ball, with the steel ball to support it.
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1. First use a ruler to draw the upper right corner of a 90-degree Cartesian code trillion scramble coordinate system.
2. Assuming that the diameter of the tube we use is 400, then we can determine that the diameter of the tube used is 200.
3. Assuming that the number of half sections we use is 4, then we can divide the equal points on the middle diameter, the number of equal points n = (the number of truncated sections of the elbow of Chi Dan a-1) * 2, here a = 4, so n = 6, draw 6 equal points on the figure.
4. Then make a semicircle with a radius, divide the semicircle into 6 equal parts, and make a vertical line through these 6 equal points.
5. Then follow the circumference of the round tube and make an equal point, because the figure is symmetrical, you can draw half of it.
6. In the 5th step, the distance of the corresponding projection line on the half-section projection map is cut off on the equal division line, and these interception points are connected into a smooth curve, and then symmetrically folded in half.
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Summary. The steps to make a straight pipe 90 degree elbow are as follows:1
Prepare materials and tools: straight pipes, elbow molds, lubricants, gloves, safety tweezers, etc. 2.
Insert the straight pipe into the elbow die and make sure that one end of the straight pipe aligns the bend position of the elbow die. 3.The lubricant is evenly applied to the contact surface between the straight tube and the elbow die, which reduces friction and makes the elbow easier to bend.
4.Wear gloves and use safety tweezers to secure the straight tube to the elbow die, making sure that the distance between the straight tube and the die is consistent. 5.
Using a tool, bend the straight tube in the elbow mold to the desired angle, usually 90 degrees, but it can also be adjusted as needed. 6.Make sure that the bending angle and radius of the elbow meet the required standards and requirements.
7.Take out the straight pipe elbow that has been made, and check whether its surface is flat and whether there are any defects or cracks. 8.
Finally, the straight pipe elbow is polished and cleaned for further processing and use. It should be noted that when making a straight pipe 90 degree elbow, it is necessary to pay attention to safety and use protective equipment such as safety tweezers and gloves to avoid injury. Also, pay attention to the angle and radius of the elbow to ensure that it meets the required standards and requirements.
The steps to make a straight pipe 90 degree elbow are as follows:1Prepare materials and tools:
Straight pipes, elbow molds, lubricants, gloves, safety tweezers, etc. 2.Insert the straight pipe into the elbow die and make sure that one end of the straight pipe aligns the bend position of the elbow die.
3.Evenly apply the lubricant to the contact surface between the straight tube and the elbow die, which reduces friction and makes it easier for the elbow to bend. 4.
Wear gloves and use safety tweezers to secure the straight tube to the elbow die, making sure that the distance between the straight tube and the die is consistent. 5.Using a tool, bend the straight tube in the elbow mold to the desired angle, usually 90 degrees, but it can also be adjusted as needed.
6.Make sure that the bending angle and radius of the elbow meet the required standards and requirements. 7.
Take out the straight pipe elbow that has been made, and check whether its surface is flat and whether there are any defects or cracks. 8.Finally, the straight pipe elbow is polished and cleaned for further processing and use.
It should be noted that when making a straight pipe 90 degree elbow, it is necessary to pay attention to safety and use protective equipment such as safety tweezers and gloves to avoid injury. In addition, pay attention to the angle and radius of the elbow to ensure that it meets the required standards and requirements.
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