Product Category: Head
Product introduction: The head is a part of the container (as shown in the figure below). According to the different geometric shapes, it can be divided into spherical, oval, dish, spherical crown, cone shell and flat cover. Shaped and ball crown heads are also collectively called convex heads. In welding, it is divided into butt welding head and socket welding head. Used for
The head is a part of the container (as shown below). According to the different geometric shapes, it can be divided into spherical, oval, dish, spherical crown, cone shell and flat cover. Crown heads are also collectively called convex heads. In welding, it is divided into butt welding head and socket welding head. For various container equipment, such as storage tanks, heat exchangers, towers, reactors, boilers and separation equipment. Materials are carbon steel (A3, 20 #, Q235, Q345B, 16Mn, etc.), stainless steel (304, 321, 304L, 316, 316L, etc.), alloy steel (15Mo3 15CrMoV 35CrMoV 45CrMo), aluminum, titanium, copper, nickel, and nickel Alloys, etc.
How to calculate the volume of the head insulation layer?
If it is a simple calculation, then it is very troublesome. You need to use a differential equation to find the surface area, then multiply it by the thickness. You need to differentiate based on the diameter and chord length, and then integrate. However, in engineering practice, you don't need to be so precise for the insulation. The remaining glass wool can be used elsewhere. Generally, engineering approximations are sufficient. In engineering practice, in general, the surface area of the head is equal to 1.66 times the area of the plane circle, and then multiplied by the thickness, which is the approximate volume of insulation cotton. For example, if you say that the diameter is 1.5m, then the surface area of the head is 1.66 * 3.14 * 0.75 square * 0.1, which is about 0.3 cubic. In actual engineering, if you do this, you should buy it in large quantities, and then take as much as you want. There is no need to do exact calculations.
Temperature measurement in head furnace with thermocouple
After the head is pressed and formed, a solution treatment is required immediately. The solution temperature is 1150 ℃ ± 20 ℃, and the holding time is about 1.5 hours. Before the heat treatment of the head, the temperature of the empty furnace was raised to above 1000 ° C, and then the workpiece was placed in the furnace. The temperature in the furnace was measured with a thermocouple, heated to 1150 ° C ± 20 ° C, and kept in the furnace for 1.5 hours. —Cool to below 300 ℃ in 4 minutes