-
About UsZHONGTAI HENGBANG Engineering Technology Co., Ltd. is located in the Academician Entrepreneurship Base of Tai'an National High-Tech Industrial Development Zone, Shandong Province. The company is a comprehensive service provider specializing in engineering consulting and design, materials R&D and manufacturing, as well as operations and maintenance. With strong technical expertise and robust R&D capabilities, its products are primarily applied in critical areas such as water conservancy infrastructure projects, transportation infrastructure initiatives, and environmental protection solutions for isolating and preventing leakage from urban waste and highly hazardous industrial solid waste.
-
ProductsZHONGTAI HENGBANG Engineering Technology Co., Ltd. boasts production lines sourced from countries including Germany, Italy, Denmark, Belgium, and Switzerland, adhering to rigorous quality management systems and testing standards. We are equipped with advanced testing equipment capable of evaluating tensile strength, creep resistance, UV protection, water permeability, flame retardancy, antistatic properties, chemical corrosion resistance, and oxidation performance.
-
Application CasesThe product is primarily used in hydraulic infrastructure projects, transportation infrastructure projects, and environmental protection applications—including the isolation and impermeability of municipal waste and highly hazardous industrial solid waste.
-
BlogPrioritizing technological advancement and innovation, our company is committed to fulfilling user needs to the fullest extent possible.
Professional揭秘: Why Your Yunnan EVA Tunnel Waterproof Membrane Won’t Weld?
Release date:
2020-09-14
Currently, the construction of tunnel waterproofing linings primarily relies on composite lining systems. , The waterproof layer in composite lining systems is a weak point during construction. , A slight carelessness during the process can easily lead to soldering burns, soldering through, and false solder joints. , Making an already fragile waterproof layer even more vulnerable, tunnel leak-sealing has become an overwhelming and exhausting task.
To address Baoshan, Yunnan EVA Tunnel Waterproofing Sheet Issues with fixed welding , Various welding process equipment is constantly emerging. , Currently, the two most widely used processes in construction are ultrasonic welding and electromagnetic welding. , However, both processes often encounter issues during actual operation. Baoshan, Yunnan EVA Tunnel Waterproofing Sheet Problems with poor soldering and solder joint detachment. Even a slightly longer welding time can lead to solder burn-through or solder leakage. , Mastering the heat control in welding is extremely challenging.
Today, the ZHONGTAI HENGBANG editor will discuss tunnel waterproofing material performance and ultrasonic methods. / Starting from the welding principle of electromagnetic welding , Through continuous experimentation and refinement on-site , Summarized a simple and easy-to-follow method. , Improved the durability of waterproof membrane welding. , Thus You Effectively preventing incidents of waterproof panels from detaching.
First, let’s start by understanding the properties and chemical composition of waterproof materials:
Baoshan, Yunnan EVA Tunnel Waterproofing Sheet Adopt EVA There is a lot of material. ,EVA Refers to " Ethylene - Vinyl acetate copolymer—and the rubber-plastic foam material made from it—is solid at room temperature. , Heated and melted to a certain point, it becomes flowable. , And a liquid with a certain viscosity, which gradually turns into a solid as the temperature decreases.
Thermally conductive gaskets are commonly made using di High-density polyethylene material , When polyethylene is heated, its crystalline portion gradually decreases—until the crystalline structure completely disappears. , Polyethylene melts. Then, as the temperature drops, , The crystalline portion gradually increases. , Polyethylene material regains its strength.
Next, let's explore the process principles of ultrasonic welding and electromagnetic welding:
The ultrasonic welding machine is powered by a generator. 20kHz to 35kHz High-voltage, high-frequency signals , Through the energy conversion system , Convert the signal to High-frequency mechanical vibration , By applying it to two closely positioned plastic workpieces using the welding gun tip. , Through friction between the surface and internal molecules of the workpiece Which causes the local temperature of the contact surface to rise. , When the temperature reaches the melting point of the workpiece itself , The workpiece interface rapidly melts and fills the gaps between the joints. Gap , As contact time increases , Contact surface melting shen Increase the degree. When the contact vibration stops, , The workpiece is simultaneously under a certain pressure. Fixed shape , Thus achieved wan Midea Ultrasonic Welding.
The magnetic welding torch uses the principle of electromagnetic induction heating. , By generating an alternating magnetic field through the magnetic welding torch head. , Enable the wire mesh embedded inside the hot-melt gasket. Fever , Heat is instantly generated, rapidly melting the waterproof board and gasket while filling the gaps between the contact surfaces. , As the heating time increases , Receive Surface melting shen Degree increase , After stopping the heating , Cool and set under controlled pressure , To achieve wan The purpose of American welding.
Third: Baoshan, Yunnan EVA Tunnel Waterproofing Sheet Simple principle and steps of the welding process: heating to melt — pressing for shaping — cooling to set.
Fourth, Baoshan, Yunnan EVA Tunnel Waterproofing Sheet The right way to weld:
From a materials perspective, as the heating process progresses , Decreasing intensity , As the temperature decreases, strength increases. From a process perspective, , Whether it is Both ultrasonic and electromagnetic welding involve a three-step process: heating and melting the materials, pressing them into shape, and then allowing them to cool and solidify. Through continuous on-site exploration and refinement, , The specific steps for welding waterproof boards are as follows:
di Step 1: Before the welder removes their left hand , First, press the wet cloth down;
di Step 2: The welder first presses the hot-melt gasket firmly against the tiger's mouth area with their left hand, then proceeds with welding.
Step 3: For the next solder joint, press the damp cloth down first before the welder removes their left hand.
Fifth, key considerations during the welding process:
1 , as significant residual heat is generated after welding , Incomplete anchoring can easily cause waterproof panels in a tensile state to be pulled apart. , The welding point needs to be quickly cooled by applying a wet towel followed by compression.
The specific method is : After removing the magnetic welding torch and before releasing his left hand, another worker pressed down with a wet towel. , Until the next piece is welded. , Next, move the wet towel over the freshly welded piece and press it firmly. , Two wet towels are alternately moved and pressed together. , Accelerate firmness with rapid cooling. This is because water has a relatively high specific heat capacity. , So, a wet cloth can help quickly cool the welding surface. , Without increasing the workload , Quickly cool down with a wet cloth. , Quickly enhance the strength of the welding surface for rapid, gao Efficiency and the purpose of ensuring strong welding.
Baoshan, Yunnan EVA Tunnel Waterproofing Sheet The welding techniques—you Get Have you arrived yet?
ZHONGTAI HENGBANG Engineering Technology Co., Ltd. is a comprehensive service provider integrating engineering consulting and design, material R&D and manufacturing, as well as operations and maintenance. With robust technical expertise and strong R&D capabilities, our products are prominently applied in environmental protection fields such as hydraulic infrastructure projects, transportation infrastructure initiatives, and the isolation and anti-seepage solutions for urban waste and hazardous industrial solid waste management. The company boasts advanced production lines sourced from Germany, Italy, Denmark, Belgium, Switzerland, and other countries, adhering to stringent quality management systems and rigorous testing standards. We are equipped with state-of-the-art equipment capable of evaluating critical properties—including tensile strength, creep resistance, UV resistance, permeability, flame retardancy, antistatic performance, chemical corrosion resistance, and oxidation stability—ensuring superior product quality. Furthermore, ZHONGTAI HENGBANG has earned prestigious certifications such as CRCC, ISO 9001, ISO 14001, OHSAS 18000, and MA certificates, along with inspection reports from China’s Ministry of Railways and Ministry of Water Resources, the EU CE certification, and approvals from specialized laboratories in Russia, Australia, and the United States. We are dedicated to delivering top-quality geosynthetic materials and unparalleled services for a wide range of projects, including reinforced soil retaining walls, soft ground stabilization, land reclamation and seawall construction/maintenance, hydraulic engineering, slope remediation and ecological restoration, road construction, and mining projects.
Consultation Phone: 13953856388
Contact: Mr. Zhang
Latest Updates
ZHONGTAI HENGBANGPET Polyester Welded Geogrid Advantages
Relying on independent innovation and technological expertise, Taihengbang Engineering Technology Co., Ltd. has achieved groundbreaking progress in the geosynthetics field. The company’s newly developed and produced PET polyester-welded geogrids, backed by multiple core patented technologies, have set a high-standard industry benchmark. Built on high-strength polyester materials and crafted through advanced precision welding techniques, these geogrids feature a robust, stable mesh structure, delivering exceptional performance in terms of tensile strength, durability, and environmental adaptability.
Jingzhe | Spring thunder rumbles, and all things grow.
Around March 5, the first spring thunder begins to rumble, rousing hibernating insects and snakes from their winter slumber. Peach blossoms start to peek out on the branches, and the earth softens as new buds emerge.
Geotube: A sludge dewatering tool—your eco-friendly engineering ally
A geotube is a tubular bag made by sewing together high-strength geotextile fabric. Utilizing the natural principle of gravity filtration, it removes water from sludge, effectively separating mud from water.
February 2, Dragon Raises Head: A Forgotten Spring Festival Celebration
On the second day of the second lunar month, spring returns to the earth, and all things awaken from their winter slumber. On this day—gradually fading from modern memory—lies one of the deepest cultural codes of the Chinese nation. The "Dragon Rises" is not just a seasonal marker; it’s also a spiritual totem for the Chinese people—a cherished legacy of our agricultural civilization.
Construction Plan for Laying and Welding of Composite Geomembranes
Construction Plan for Laying and Welding of Composite Geomembranes
Introduction to Drainage and Waterproofing Sheets
Introduction to Drainage and Waterproofing Sheets
ZHONGTAI HENGBANG Technology Co., Ltd.
Address: East Section of Zhongtianmen Avenue, Tai'an High-tech Zone, Shandong Province
Service Hotline