A church under construction in India collapses, causing 10 people to be killed

Chemicals&Materials

Jan 18,2024

According to a report on the website of the Indian weekly “The Week,” on January 8, 7th, a church under construction collapsed in Gohil, Sengareddy District, Telangana, India, killing one person and injuring nine others.

Video from the scene released by news agency Press Trust of India showed the injured being carried to safety above piles of collapsed building materials and rubble. The video also showed the injured being treated at Sengareddy Government Hospital.

According to reports, the accident occurred while workers were laying a concrete roof when a slab suddenly collapsed. After the accident, people working on the iron structure fell, and some workers working below were trapped in the rubble. Local media reported that many workers were seriously injured.

India Asia News International quoted Sengareddy Police Superintendent Rupesh as saying: “The incident occurred around noon on the 7th. One worker died in the accident, and one injured was seriously injured.”

The Press Trust of India said the worker who died was from Myanmar. Project engineers and contractors have been detained, the report added.

There are some reasons why a building may collapse, such as:

Uneven settlement of buildings: This may cause cracking or damage concrete structures.

Temperature Shrinkage Cracks: Cracks may develop because of shrinkage of concrete caused by temperature changes.

Cracks are caused by materials or construction and design reasons, such as too much fly ash and mineral powder in concrete, too sparse spacing between steel bars, wrong position of negative bending moment bars, unqualified raw materials for steel bars, etc.

Effect of Polycarboxylate Superplasticizer in Concrete

In high-performance concrete, building and construction engineering and precast concrete, anti-slump polycarboxylic acid superplasticizer can improve the mechanical properties, durability, and corrosion resistance of concrete to meet the requirements of high strength and high durability.

Concrete Superplasticizer

Supplier

TRUNNANO is a supplier of Concrete Superplasticizer with over 12 years experience in nano-building energy conservation and nanotechnology development. It accepts payment via Credit Card, T/T, West Union and Paypal. Trunnano will ship the goods to customers overseas through FedEx, DHL, by air, or by sea. If you are looking for high-quality Concrete Superplasticizer or other concrete additives, please feel free to contact us and send an inquiry.

Molybdenum disulfide solid lubricant: performance and application

Chemicals&Materials

admin

Dec 18,2023

With the development of technology, applying lubricating materials in industries, aerospace, automobiles, and other fields is becoming increasingly widespread. Among them, solid lubricants, as an essential lubricating material, have unique advantages in extreme environments such as high temperature, high vacuum, and intense radiation. This article will focus on an essential solid lubricant – molybdenum disulfide (MoS2).

Performance of molybdenum disulfide

Tribological performance: MoS2 has excellent frictional performance and can maintain a stable lubrication effect in extreme environments such as high temperature, high vacuum, and intense radiation. Its low friction coefficient and strong wear resistance can effectively decrease friction and wear and extend the service life of the equipment.
Thermal stability: MoS2 has high thermal stability and can sustain stable physical and chemical properties in high-temperature environments. This makes MoS2 have broad application prospects in high-temperature environments.
Corrosion resistance: MoS2 has effective corrosion resistance and can oppose the erosion of various chemical substances. This makes MoS2 have sound application effects in corrosive environments.

The application of molybdenum disulfide

Aerospace field: MoS2 has a wide range of applications in the aerospace territory, such as engine lubrication, bearing lubrication, etc. Due to its excellent tribological performance and high-temperature resistance, MoS2 can effectively reduce the friction and wear of engines and bearings and improve the service life of equipment.
Automotive field: MoS2 has extensive applications in the automotive field, such as engine lubrication, brake system lubrication, etc. MoS2 can effectively reduce the friction and wear of the engine and brake system, improving the car’s performance and service life.
Industrial field: MoS2 also has a wide range of applications in the industrial territory, such as lubrication of machine tool guides, lubrication of hydraulic systems, etc. Due to its excellent tribological performance and high-temperature resistance, MoS2 can reduce the friction and wear of machine tool guides and hydraulic systems, improving equipment production efficiency and product quality.

Molybdenum disulfide solid lubricant has the following advantages compared to other solid lubricants:

Excellent tribological performance: MoS2 has a low friction coefficient and effective wear resistance, which can maintain stable lubrication effects in various application scenarios.
Good thermal stability: MoS2 can maintain stable physical and chemical properties in high-temperature environments, making it suitable for lubrication applications in high-temperature environments.
Wide applicability: MoS2 exhibits good lubrication performance in various application scenarios, such as aerospace, automotive, industrial and other fields.
Environmental friendliness: MoS2 is an inorganic mineral that is harmless to the environment and human health and meets environmental requirements.

Supplier

Luoyang Tongrun Nano Technology Co., Ltd. is a supplier and manufacturer specializing in manufacturing, developing, and selling chemical materials. Since its establishment, the company has been committed to providing high-quality and high-performance chemical and nanomaterial products to global customers to meet the needs of the constantly developing chemical industry.

It accepts payment through credit card, T/T, Western Union remittance, and PayPal. PDDN will ship goods to overseas customers via FedEx, DHL, sea or air freight. If you want high-quality molybdenum disulfide solid lubricant, please consult us; we will assist you.

Fast Recovery Diode Module: a key factor in providing ultra-long endurance for new energy vehicles

Electronics&Energy

admin

Dec 06,2023

With the rapid development of new energy vehicles, the performance requirements for power electronic equipment continue to increase. Fast Recovery Diode Module, an advanced power electronic device, has fast recovery time and high efficiency, which are critical factors in providing ultra-long endurance for new energy vehicles. By selecting the appropriate model, good heat dissipation design, stable input and output voltage, correct installation and maintenance, and reasonable backup and redundancy design, the Fast Recovery Diode Module’s application effect and effectiveness in new energy vehicles can be further improved. Reliability enables a more extended cruising range and higher energy utilization to help the development of green travel.

Basic structure and working principle of Fast Recovery Diode Module

The Fast Recovery Diode Module is specially designed for power electronic equipment. It mainly comprises semiconductor diodes, capacitors, resistors and other components. Its working principle is based on the unidirectional conductivity of PN junction diodes, and efficient conversion of electrical energy is achieved by controlling the on and off of the diodes. Compared with traditional diodes, the Fast Recovery Diode has a faster recovery time and lower loss, enabling higher efficiency.

Application of Fast Recovery Diode Module in new energy vehicles

1)Battery governance system: The battery management system of new energy vehicles is integral to vehicle energy management. The Fast Recovery Diode Module can achieve fast charging and discharging, improve battery utilization, and, at the same time, effectively reduce the battery’s temperature and improve its safety.

2)Motor controller: The motor controller is the core component of new energy vehicles and controls the vehicle’s acceleration, deceleration and braking. Fast Recovery Diode Module can achieve high-efficiency energy conversion and improve the motor’s efficiency, thereby achieving a longer cruising range.

3)Charging facilities: Charging facilities for new energy vehicles require a high-efficiency power supply. Using the Fast Recovery Diode Module, charging facilities can achieve fast charging, shorten charging time, and thus improve charging efficiency.

How to better leverage the performance advantages of the Fast Recovery Diode Module

1)Choose the appropriate model: Choose the Fast Recovery Diode Module model for different application scenarios and equipment needs. For example, for scenarios that require high power output, you can choose modules with larger rated currents; for scenarios that require compact size, you can choose highly integrated modules.

2)Good heat dissipation design: Since the internal components of the Fast Recovery Diode Module are highly integrated, heat dissipation is significant. To ensure the stability and reliability of the module, effective heat dissipation measures need to be taken, such as selecting appropriate radiators, optimizing heat dissipation channels, etc.

3)Stable input and output voltage: To ensure the efficient operation of the Fast Recovery Diode Module and the stability of the equipment, it is necessary to ensure the stability of the input and output voltage. You can use a regulated power supply or take measures to suppress voltage fluctuations to ensure the regular operation of the module.

4)Correct installation and maintenance: Correct installation of the Fast Recovery Diode Module ensures its stable operation. Installation should be carried out per the instructions provided by the manufacturer, taking care to avoid mechanical stress, overheating, etc.

5)Reasonable backup and redundancy design: For critical equipment or key application scenarios, system reliability can be improved through backup and redundancy design. You can choose the Fast Recovery Diode Module with a parallel connection function or add a backup power supply system to ensure the system’s stable operation.

Supplier

PDDN Photoelectron Technology Co., Ltd. is a high-tech enterprise focusing on the manufacturing, R&D and sales of power semiconductor devices. Since its establishment, the company has been committed to providing high-quality, high-performance semiconductor products to customers worldwide to meet the needs of the evolving power electronics industry.

It accepts payment via Credit Card, T/T, West Union, and Paypal. PDDN will ship the goods to customers overseas through FedEx, DHL, by sea, or by air. Please inquire if you want a high-quality, fast-recovery diode module; we will help.

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