Bangwei Bangwei

0514-86528888

Bangwei

Homepage
/
Bang Wei Product
/
Automatic variable diameter roll welding machine

Product Category

All categories

Contact Us

0514-86528888 Phone:13901452222 E-mail:bwjx0514@163.com Add:No. 8, Bangwei Road, Jiangdu District, Yangzhou City, Jiangsu Province (in Longchuan Industrial Park)
Contact Contact
Number of views:
1000

Automatic variable diameter roll welding machine

Welding machine refers to an electrical appliance that provides a certain power supply for welding. Welding is widely used in various industrial fields, such as aerospace, ships, automobiles, containers, etc., due to its advantages of flexibility, simplicity, convenience, firmness and reliability, and even the same strength as the base metal after welding.
Category: Bang Wei Product
Retail price
0.0
元
Market price
0.0
元
Number of views:
1000
Product serial number
Quantity
-
+
Stock:
Category
Product List
1
Product description
Parameters

　　Welding machine refers to an electrical appliance that provides a certain power supply for welding. Welding is widely used in various industrial fields, such as aerospace, ships, automobiles, containers, etc., due to its advantages of flexibility, simplicity, convenience, firmness and reliability, and even the same strength as the base metal after welding.

　　An electric welding machine is actually a transformer with reduced external characteristics, which converts 220V and 380V AC into low-voltage DC. Generally, electric welding machines can be divided into two types according to the type of output power supply, one is AC power supply; It is direct current. The DC electric welding machine can also be said to be a high-power rectifier, which is divided into positive and negative poles. When the AC power is input, it is transformed by the transformer, then rectified by the rectifier, and then outputs a power supply with reduced external characteristics. The output terminal is switched on and off. A huge voltage change will be generated when the two poles are short-circuited in an instant, and the arc will be used to melt the welding rod and welding material, and then the purpose of combining them will be achieved after cooling. The welding transformer has its own characteristics, the external characteristic is the characteristic that the voltage drops sharply after the welding rod is ignited.

　　The main part of the electric welding machine is a step-down transformer. The two ends of the secondary coil are the workpiece to be welded and the electrode. When working, the arc is ignited, and the electrode is fused to the gap of the workpiece in the high temperature of the arc. Because the iron core of the welding transformer has its own characteristics, it has the characteristics of a sharp drop in voltage, that is, the voltage drops after the welding rod is ignited; when the welding rod is stuck and short-circuited, the voltage drops sharply. During the welding operation, although the current in the circuit is equal everywhere, because the resistance of each place is different, the resistance at the unfixed contact is the largest (this resistance is called contact resistance), according to the law of thermal effect of current (also called Joule's law) , that is, Q=IRt. It can be seen that when the current is equal, the part with greater resistance will generate more heat. Therefore, during welding, the contact resistance of the contact of the electrode, that is, the contact of the metal body to be connected, is the largest. The electric heat generated is naturally the most, and the welding rod is an alloy with a low melting point, so it is easy to melt. The molten alloy electrode core sticks to the object to be welded, and after cooling, the welded object is bonded together. Generally, the panel of the DC inverter welding machine is equipped with an output DC current adjustment knob. The inverter DC welding machine first performs bridge rectification and filtering on single-phase AC 220V voltage or three-phase AC 380V voltage, and then supplies power switching devices for inverter processing. A small number of inverter welding machines first use pulse generating circuits such as 555 time base circuits to generate rectangular pulse waves, then use transistors to amplify current, and then use a pair of complementary field effect transistors to amplify voltage to generate high-frequency signals, and finally use boost The transformer boosts the voltage and induces alternating current on the secondary winding. The size of its power depends on the amplification capability of the amplifier circuit. The inverter welding machine mostly adopts a single-ended forward inverter circuit composed of IGBT tubes, and its control system mostly uses a pulse width modulation chip SG3525, whose inverter frequency is 20kHz, and can perform constant current external characteristic control. When the system is no-load, due to the voltage feedback control, the PWM modulator outputs pulses intermittently. Because the frequency of intermittent oscillation is low and the pulse width is narrow, not only the no-load loss is small, but the transformer is not easy to saturate. Because this type of welding machine adopts the control technology with pulse width modulation PWM as the core, it can obtain better constant current characteristics and excellent welding process effects.

Keyword:
welding
the
is
and
of
to
be
voltage
current
Scan the QR code to read on your phone
We could not find any corresponding parameters, please add them to the properties table
Previous
High frequency vibration production line
Next
Check Well Products
High frequency inspection well mold
　　The high-frequency vibration motor relies on the frequency-modulated power supply to adjust the frequency of the motor to high-speed rotation and drives the eccentric wheel to make a circular motion, thereby generating vibration, and the vibration is transmitted to the end cover and even the casing through the raceway. The vibrator has long service life, high efficiency, large vibration amplitude, strong excitation force, no vibration loss phenomenon, compact structure, convenient use, few wearing parts and easy maintenance. It can be widely used in concrete tamping construction and other occasions that require a vibration source. 　　High-frequency vibrators are mainly used for prefabricated concrete components of railways, highways, highway bridges, and engineering buildings. Its vibration frequency is more than three times higher than that of ordinary vibrators. obviously decrease. It can save cost, speed up project progress and improve project quality. 　　The high-frequency vibrator has high excitation frequency (180HZ/S), large excitation force (12KN), small amplitude (1.3mm), and large radiation range (1.5m). The fluidity and plasticity of concrete are increased, and the compactness of components is improved. The molding is fast, and the quality can be greatly improved. It can run at a high speed of 9800 revolutions per minute. 　　Reduce template loss. Due to the high vibration frequency and small amplitude, less energy is consumed in the deformation of the steel formwork, which prolongs the service life of the formwork. 　　Easy to use. Due to its small size, light weight (only 23 kg/set), and the quick-loading structure, it only needs to be tightened with one screw to fix it on the formwork. It only takes 30 seconds to load and unload a vibrator, which saves 75% of the auxiliary installation time and 75% of manpower compared with the use of ordinary external vibrators. 　　The service life is more than four times that of ordinary vibrators. Due to the extremely high vibration efficiency of the ZKF vibrator, it only takes 30 to 40 seconds to stop each vibration, so the service life of the vibrator is greatly improved, the maintenance cost is reduced, and the construction cost is reduced. 　　Due to the strong excitation force, it can also be formed at one time for the construction of taller bridge columns. 　　It is the earliest high-frequency fast-loading vibrator in China. After nearly ten years of continuous technical improvement, the technology is very mature. 　　The product quality is reliable and excellent, the service life is long, and the quick-installation structure is adopted, which can significantly speed up the beam-making speed. 　　The construction quality has been significantly improved, and has been recognized and praised by many project departments and supervision departments.
High frequency inspection well mold
Double station mandrel host
　　The inspection well is set up for the maintenance of urban underground infrastructure such as power supply, water supply, drainage, sewage discharge, communication, cable TV, gas pipes, and street lamp lines, and is convenient for installation. It is generally installed at the intersection of pipelines, turning places, pipe diameter or slope changes, and at certain distances on straight pipe sections, which is convenient for regular inspection of ancillary structures. 　　The inspection well is used in the construction area (residential area, public building area, factory area, etc.) to buried plastic drainage pipes with an outer diameter of no more than 800mm and a buried depth of no more than 6m. Or slope changes, water drops, etc., for the convenience of regular inspection, cleaning and dredging, or well-shaped structures made of plastic injection molding or bricks for downhole operation and inspection. The plastic integrated injection molding inspection well means that the main well block that constitutes the inspection well is formed by one-time injection molding, the well shaft socket adopts a 360-degree ring-shaped bearing platform, the well body and the bottom of the well seat use mesh reinforcement ribs, and each socket adopts ring-type reinforcement. Rib design. Depending on the number and angle of connection, there are initial well bases, straight well bases, 45-degree elbow well bases, three-way well bases, and four-way well bases. In order to adapt to various drainage conditions, plastic inspection wells are equipped with plastic integral injection molding accessories such as reducing joints, confluence joints, and multi-joints in the wellbore. To ensure the smoothness and tightness of the entire drainage system. 　　1) Plastic drainage inspection well projects with buried drainage pipes with an outer diameter of no more than 1200mm and a buried depth of no more than 8m in building areas (residential areas, public building areas, factory areas, etc.), urban and rural municipalities, industrial parks, old city renovations, etc. Design, construction and maintenance. 2) Construction of plastic drainage inspection wells under the conditions of general soil, soft soil, seasonal frozen soil and collapsible loess; 3) Areas where the seismic fortification crack degree is 9 degrees or below. 4) The ground load of the general driveway is designed according to the total vehicle weight of 15t (the rear wheel pressure is 5t); the ground load of the fire lane is designed according to the total vehicle weight of 30t (the rear wheel pressure is 6t). 5) The groundwater level is designed to be no higher than 1.0m below the ground;
Double station mandrel host
Vertical tube turning machine
Prestressed Concrete Cylinder Pipe (PCCP) is a composite pipe composed of concrete and steel cylinder, which overcomes the shortcomings of poor corrosion resistance of steel pipes and poor impermeability of concrete pipes, and not only has The advantages of steel pipes and concrete pipes, but also some new advantages.
Vertical tube turning machine

Messages

Username used for comment:
客户留言
Description:
验证码
please try again.

contact Us

Add: No. 4, Bangwei Road, Longchuan Industrial Park, Jiangdu District, Yangzhou City, Jiangsu Province

Hotline：0514-86528888、86529999、
               0514-86538888、86539999  
Mobil: 13901452222 （Mrs. shuai）
E-mail: bwjx0514@163.com
Website: www.bwjx.com

Bangwei

Mobile Website

Copyright:Jiangsu Bangwei Machinery Manufacturing Co., Ltd    SEO    Power by:www.300.cn    Business License 

Verification 苏ICP备2022028589号-1