Jingwei Heli FA432 roving machine passed the appraisal

The FA432 roving machine developed by Shanxi Jingwei Heli Machinery Manufacturing Co., Ltd. passed the mechanical appraisal recently.

The FA432 roving frame is a new type of roving frame designed and developed on the basis of FA431 and FA436 roving frames. The utility model is characterized in that the upper and lower iron cannons, the forming device and the lower dragon dam resetting device are eliminated, and the two sets of frequency conversion control system and the coded monitoring device are used together with a pair of electromagnetic clutches to complete the winding and forming functions, thereby simplifying the mechanical structure of the roving frame and improving the electromechanical The degree of integration reduces costs and improves spinning speed and quality.


After the empty car was run, the prototype was subjected to 800 rev / min and 1000 rev / min constant speed and speed reduction. The two batches of head and tail ingots and the front and rear rows of six ingots were operated. . The cotton C40 was spun and both were well formed.

Welding Bar

Tungsten carbide welding bars are commonly used in the oil and gas industry for various applications. These bars are made from a combination of tungsten and carbon, which results in a very hard and wear-resistant material. Here are some specific uses of tungsten carbide welding bars in the oil and gas industry:

1. Hardfacing: Tungsten carbide welding bars are used for hardfacing applications, where a wear-resistant layer is applied to drilling tools, valves, pumps, and other equipment exposed to abrasive environments. This helps to extend the lifespan of the components and reduce maintenance costs.

2. Drill bits: Tungsten carbide welding bars are used to manufacture drill bits for oil and gas exploration. The hard and durable nature of tungsten carbide makes it ideal for drilling through tough rock formations.

3. Wear plates and liners: Tungsten carbide welding bars are used to create wear plates and liners for equipment used in oil and gas production. These plates and liners protect the underlying metal surfaces from abrasion and corrosion, ensuring the longevity of the equipment.

4. Valve seats and seals: Tungsten carbide welding bars are used to manufacture valve seats and seals for oil and gas valves. The high hardness and wear resistance of tungsten carbide ensure reliable sealing and prevent leakage in critical applications.

5. Downhole tools: Tungsten carbide welding bars are used in the manufacturing of downhole tools such as stabilizers, reamers, and drill collars. These tools are subjected to high pressures, temperatures, and abrasive conditions, and tungsten carbide helps to enhance their durability and performance.

Overall, tungsten carbide welding bars play a crucial role in the oil and gas industry by providing wear resistance, hardness, and durability to various components and equipment.

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