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Two professors at the University of Colorado in the United States invented an epoch-making cooling material made of TPX plastic. Its biggest feature is that it can cool objects without refrigerant and electricity! This film is made of a plastic called TPX. It looks like a plastic wrap, but under a microscope you will find many glass beads with a diameter of only 8 microns inside. The exterior is covered with transparent plastic. Ordinary plastics and ordinary glass beads can be combined to reflect sunlight back and prevent heat from penetrating downward. Its cooling principle is "radiation cooling". The received…

As a standard fastener, eyebolt is widely used in mechanical and electrical products. Its main function is to lift loads. As shown in the figure, it should be very common in our life. However, attention should be paid to the specifications of eyebolts in the process of selection. Any error is likely to affect or cause losses to the project. The following is a brief introduction to the specifications of eyebolts and the matters needing attention in the selection. GB825-88 specifies the structural type, size, technical requirements, lifting weight and service conditions of eyebolts. Technically, the eyebolts shall be made…

Working principle of automatic numerical control lathe Machining parts on automatic CNC lathe usually goes through the following steps: 1) According to the drawings and process plans of the processed parts, the program sheet shall be prepared with the specified code and program format and recorded on the carrier. 2) The program on the program carrier is input into the CNC unit through the input device. 3) After processing the input program, the CNC unit sends a signal to the servo system of each coordinate of the machine tool. 4) The servo system drives the moving parts of the machine…

1. Clean the grinder with a brush after daily operation. It is strictly forbidden to blow the worktable or guide rail directly with an air gun to prevent iron chips from entering the guide rail and affecting the precision of the grinder. 2. It is strictly prohibited to use a fan to blow against the workbench during operation, so as to prevent dust and iron filings from rolling back into the guide rail, which will affect the accuracy and feel of the guide rail. 3. The guide rail oil of the grinder should be replaced and added in time. Generally,…

With the gradual rise of people's demand, 3D printing enterprises are making their products bigger and bigger, just like the development of mobile phone screens. 3D printing is not a strange word, especially in manufacturing and medical biology. However, with the gradual development of 3D printing, the original technology of 3D printer has not been further improved, especially the development of FDM technology. It can be said that there is basically no technical breakthrough. However, some enterprises are keen on one thing: big, bigger! With the slogan of Apple, why is it big. Big, just fine? As we all know,…

First of all, I want to give you an idea: not all models can be used for 3D printing. The various online game character models look beautiful, but many of them can't be used. Why? Because the purpose of designer modeling is not to be used for 3D printing, many places do not design according to the requirements of 3D printing models. 2. Optimized design with less support The pain of adding support and removing support is only known through personal experience, and after removing support, it will still leave a very ugly mark on the model, and the process…

1、 Anti rust coating process of construction machinery Anti rust coating process of construction machinery can generally be divided into pre coating, surface treatment process and anti rust, primer and primer coating process. 1: Surface treatment of steel shot and steel sand Surface treatment is one of the important processes of antirust coating. The quality of anti rust coating of construction machinery depends to a large extent on the way of surface treatment. The coating life is restricted by three factors: the surface treatment accounts for 60%, the coating construction accounts for 25%, and the coating quality accounts for 15%,…

FDM (fused deposition molding) technology is one of the most common 3D printing technologies, but it can be used not only for desktop level equipment, but also for industrial level equipment. As the inventor of this technology, Stratasys has shared some technical dry goods for the application of FDM 3D printing technology in industry. Now let's learn how to use industrial grade FDM 3D printing technology to print parts with variable density. Moreover, if the operation mode is proper, FDM technology can also greatly save time and cost. How to operate it best? See below: Step 1: Introduction The unique…

CNC lathe is an automatic machine tool with high precision and efficiency, which can process complex workpieces such as linear cylinder, oblique cylinder and arc. In order to ensure the working accuracy of the lathe and extend its service life, it is necessary to carry out reasonable maintenance. The common methods for maintenance and repair of CNC machine tools are: oil pouring lubrication, oil splashing lubrication, oil rope guide lubrication, marble oil cup lubrication, grease cup lubrication, oil pump oil delivery lubrication. The parts in the spindle box are lubricated by oil pump circularly or splash lubrication. The lubricating oil…

Injection molding machine is one of the plastic machines commonly used in plastic processing. The structure of plastic machinery injection molding machine is usually composed of injection system, mold closing system, hydraulic transmission system, electrical control system, lubrication system, heating and cooling system, safety monitoring system, etc. Injection system Function of injection system The injection system is one of the most important components of the injection molding machine, which generally has three main forms: plunger type, screw type and screw pre plastic plunger injection type. At present, screw type is most widely used. Its function is that in a cycle…