Cold and hot shock box operation steps explained The operation steps of the cold and hot shock box are explained, and its operation methods are also introduced in many chapters in the previous chapters. Today we introduce the types of impact test methods, which are mainly divided into the following three types: 1, the provisions of the pulse test method, using sine wave test; 2, shock test method; 3, the provisions of the test machine test methods. The first two are non-destructive tests, and the latter is a destructive test. We generally use the third type, which is our impact tester. The following Haida project introduces you to the following steps: 1, take the pendulum Start button, through the action of relays, clutches and contactors, after the pendulum reaches the highest position, it touches the micro switch, the motor stops, the other electrical circuits are reset, and the insurance pin is extended. 2, retreat Launch the button to cancel the return of the insurance. 3, impact Start the impact button, electromagnet work, to achieve the impact of falling. 4, put pendulum Press the oscillating button and put the test down at the end of the test. 5, reading Through the scale readings of the dial, the scales are pre-calibrated. The closer to the zero scale, the greater the distance between each scale. The closer to the maximum scale, the smaller the distance between the scale values. As an old brand enterprise, Haida Instrument has been focusing on the R&D, production and sales of testing machines and test chambers. There are also certain brands in the industry. If your test chamber encounters problems, you can inquire or leave a message on our website. We will definitely Respond to you at the first time. Article Source: Dongguan Haida International Instrument is not allowed to reprint without permission! (Or: if you need to reprint, indicate the source)
The dryer is made of cast iron, which has two ends of a hollow cylinder. It is made up of cylinder block and cylinder head at both ends. The outer diameter is mostly 1000 to 3000mm. During the running process, the steam will dry and burn the paper transported. The cast iron dryer used for paper mill is a key component of paper drying - type I pressure vessel. The number of cast iron dryers accounts for about 2/3 of the total number of pressure vessels in the paper industry. The material for making the dryer is generally HT200 and HT250. In the manufacturing of quality requirements and no penetration and large blisters, in order to increase the smoothness of the paper, the outer surface of the dryer polished inner surface turning light, keep the cylinder wall thickness is consistent, in order to ensure safety, balance and heat evenly throughout the dryer. The dryer is used to dry the paper sheets in the water, surface finishing.
The main parts of dryer include: heat pump, steam supply system, condensate recovery system, flash tank, pressure difference control system, pressure control system, flash tank, non condensable gas removal system, hot water pump, manual control program, warm up paper break startup program and so on.
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