Radiant tubes are widely used in heating furnaces and are the main heating elements of heating furnaces. It is necessary to focus on checking for surface defects, uniform waxberry particle size, and complete and leak free welds. Read More

The height vernier caliper is widely used for height measurement, marking, and other purposes in mechanical processing. Also known as a height ruler ·Common ranges: 0-300mm, 0-500mm, 0-1000mm, 0-1500mm, 0-2000mm ·Common accuracy: 0.02mm, 0.01mm (determined by the number of divisions on the cursor) ·Measurement object: height Use a height caliper to measure the height of the grate, and the reading is 91.4mm Read More

Surface roughness refers to the unevenness of the machined surface with small spacing and small peaks and valleys. The distance (wave distance) between its two peaks or valleys is very small (below 1mm), which belongs to the micro geometric shape error. The smaller the surface roughness, the smoother the surface. The morphological features with a wave distance less than 1mm are usually classified as surface roughness, the morphological features with a size of 1-10mm are defined as surface waviness, and the morphological features with a size greater than 10mm are defined as surface morphology. Read More

The diameter of the outer circle of a circular object is called the outer diameter, denoted by the symbol Φ. In engineering, the outer diameter is usually an important indicator of quality issues, so measuring it is a very important process. The outer diameter of the roller generally needs to be machined to ensure surface roughness, and the processed roller can be inspected using a vernier caliper or a more accurate outer diameter micrometer. Read More

After the casting and machining of the furnace rollers are completed, we will conduct a dimensional inspection. As shown in the figure, we will use a digital caliper to check that the diameter of the inner hole of the roller is 14.07mm. Read More

Bounce refers to the difference between the maximum and minimum readings measured by a fixed indicator in a given direction when the measured element rotates around the reference axis once. Circular runout tolerance is the maximum allowable variation of the indicator value when the measured element rotates one revolution around the reference axis at a fixed reference point (with no axial displacement of the part and measuring instrument). The circular runout tolerance is applicable to any unused measurement position of the measured element. Symbols used“ ↗” express. Use a jumping gauge as shown in the picture to detect the jumping of the shaft head. Read More

The so-called hardness refers to the ability of a material to resist being pressed into its surface by harder objects. According to different testing methods and applicable ranges, hardness units can be divided into many types such as Brinell hardness, Vickers hardness, Rockwell hardness, micro Vickers hardness, etc. Different units have different testing methods and are suitable for materials or occasions with different characteristics. The hardness test of the product shown in the picture is HRC65.1. Read More

Size 1500 × 900 × 50mm multi-purpose furnace material tray benefits from its excellent material selection and manufacturing process for its outstanding performance. This tray is made of special high-quality alloy steel, which has undergone precision machining and heat treatment processes to give it excellent mechanical properties and durability. At the same time, its structural design is also very reasonable and can meet various complex production needs. In addition to conventional dimensions such as length, width, etc., the size inspection should also pay attention to the position between each installation hole, preferably for trial assembly with the middle tray. Read More