The production of cut-resistant tungsten wire does involve high energy consumption, which is mainly reflected in the following aspects:
- Raw material preparation
Preparation of tungsten powder: The preparation of tungsten powder requires high-temperature reduction and other processes, which consume a lot of electrical energy and heat energy.
Addition of alloying elements: In order to improve the cutting resistance of tungsten wire, other alloying elements are sometimes added, and the extraction and processing of these elements also consume energy.
- Wire drawing process
Wire drawing process: In the process of drawing tungsten powder or alloyed tungsten material into wire, multiple stretching and heat treatment are required, and these steps require a lot of electrical energy and heat energy. In addition, auxiliary materials such as lubricants are also required in the wire drawing process, and the preparation and recycling of these materials will also involve energy consumption.
Equipment operation: The operation of wire drawing equipment also consumes electricity, and the power of the equipment is often large, so the energy consumption is relatively high.
- Heat treatment and surface treatment
Heat treatment: In order to improve the mechanical properties and cutting resistance of tungsten wire, heat treatment such as annealing is usually required, and these heat treatment processes consume a lot of heat energy.
Surface treatment: In order to improve the surface finish and corrosion resistance of tungsten wire, surface treatment processes such as electroplating and spraying may be required, which also consume energy.
- Specific energy consumption data
Take a specific annual production of 18 million kilometers of high-strength ultra-fine tungsten wire project as an example. Its annual power consumption is 99.9937 million kWh, natural gas is 8.7087 million cubic meters, new water is 189,100 cubic meters, and nitrogen is 2.9858 million cubic meters (energy-consuming working fluids, not included in energy consumption). The annual comprehensive energy consumption is equivalent to 22864.20 tons of standard coal equivalent value and 43372.90 tons of equivalent value (electric equivalent value and equivalent value are calculated at 0.1229 and 0.328 kg of standard coal/kWh respectively). These data show that the production of cut-resistant tungsten wire does involve high energy consumption.
- Countermeasures
In order to reduce the energy consumption in the production process of cut-resistant tungsten wire, the following measures can be taken:
Optimize production processes and equipment to improve energy efficiency.
Introduce and promote advanced energy-saving technologies and equipment, such as high-efficiency energy-saving motors, waste heat recovery systems, etc.
Strengthen energy management, establish a sound energy measurement and statistical system, and conduct energy consumption analysis and evaluation regularly.
Promote the circular economy and realize the resource utilization and recycling of waste.
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