The test results of the two batches of wire and steel wire are in line with the standard, and the performance indexes are relatively close, and the spring effect is also good. However, when detecting the fatigue life of the suspension spring, there is a big difference, indicating that the non-metallic inclusions of the a-batch wire have a great influence on the fatigue life of the suspension spring, and the influence of the inclusions that are not easily deformed is greater. The plasticity difference between inclusions and steel will strongly affect the performance of the steel wire. When the steel is deformed, the elongation of the non-metallic inclusions is smaller than that of the steel, and the generated stress causes cracks or other discontinuities between the interface of the inclusions and the steel. Under the action of external force, the crack propagates and eventually an early fracture occurs.
Cone gaps and hot tears are common for non-deformed inclusions (v = 0). In order to make the inclusions harmless or even beneficial to the steel processing process, it is necessary to involve inclusions in the plastic flow of the steel in a specific thermal processing process. That is, the deformation index of the inclusions is high enough to prevent cracks from occurring.
The effect of different inclusions on fatigue performance is different. Inclusions have a high deformation index at all temperatures. The bonding force at the interface between the inclusions and the steel is not destroyed, and there is no tendency to form holes. Oxide inclusions are generally detrimental to fatigue performance, but there are differences between different oxide inclusion phases, and their size and location are also important. Harmful to fatigue performance are those spherical, non-deformable calcium aluminate inclusions and Al2O3 inclusions. These two inclusions retain their shape when the steel is deformed. The pores can develop around the globular calcium aluminate inclusions. The Al2O3 inclusions are often angular, and the angular inclusions are sources of fatigue fracture. Automobile suspension spring materials must not only control chemical composition, mechanical properties, decarburization, surface quality and other indicators, but also control non-metallic inclusions, non-metallic inclusions total greater than 2.5, B-type inclusions greater than 0.5, It has a bad influence on the fatigue life of the suspension yellow spring.
GW800D Geomembrane welding machine can weld geo-membrane of various thickness and are applicable for welding of all thermal-fused material such as HDPE, LDPE, EVA, PVC, ECB, PP and so on. The control of this series of welding machine adopts PID automatic thermostatic control with high control accuracy and low temperature fluctuation; speed control adopts PWM automatic voltage and speed regulation circuit, driven by DC servo motor, with great output torque and the operating is stable. It can maintain a constant speed on the condition of creeping, vertical creeping and variable road load. Also this series of welding machine is stable in performance despite of external temperature and voltage variation.
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ITEM
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PARAMETER
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Voltage
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220V
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Frequency
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50/60Hz
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Rate of Work
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800W
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Temperature range
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0-450°C
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Welding speed
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1 m/min
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Welding thickness
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0.2mm-2.0mm
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Welding width
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15mm*2 Interior Cavity:15mm
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Net weight
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6Kg
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ITEM
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PARAMETER
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Voltage
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220V/230V
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Frequency
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50/60Hz
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Rate of Work
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1800W
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Temperature range
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0-450°C
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Welding speed
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2 m/min
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Welding thickness
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1.0mm-3.0mm
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Net weight
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11Kg
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Product Application
The automatic welding machine is designed to weld film/membrane, including HDPE LDPE,PVC, EVA Geomembrane, Composite Geomembrane.
Small light, easy to operate. it can be adjusted to accommodate the different thickness
to make the welding stronger, avoid leakage.
This machine is more suited to fast welding of large areas, such as landfill, pond liner, mining dam bottom liner welder.
Product Images
Company Information
Q : Are you a factory or trading company?
A : We are a professional manufacturer that specialized in geomembrane, geotextile, composite geomembrane etc with ISO9001 certificate more than 15 years.
Q : Where is your factory located? How can I visit there?
A : Our facoty is located is No.10 Yuanshan Road High-tech Development Zone, Laiwu District, Jinan City China. You can take the plan to Jinan Yaoqiang International Airport, then we can pick you up.
Q : Could you send the sample before order confirmation?
A : Yes, we'd love to send a free sample to you for an evaluation if you need.
Q : How about the delivery time?
A : General within 3-7 days after received the deposit.
Q : Can you produce the product according to customers' requirements?
A : Sure, we are professional manufacturer, OEM and ODM are both welcome.
Q : Are you the Gold and Assessed supplier on alibaba?
A : Yes. We are the gold and assessed supplier on alibaba and has got the factory report by SGS.
Welding Machine,Hdpe Ldpe Geomembrane,Geomembrane Dam Liner,Geomembrane Mine Liner
Shandong Jinruixiang Geotextile Material Co., Ltd , https://www.jrxgeosynthetics.com