What is the development trend of automotive spark plug industry?

Due to the soaring world oil prices, gasoline is increasingly replaced by CNG (natural gas) and LPG (liquefied petroleum gas). Especially in northern China, natural gas resources are abundant. Many manufacturers have converted the original diesel engine into gas engine and gasoline engine into oil-gas dual-purpose engine. At present, many taxis in large and medium-sized cities such as Beijing, Chongqing and Chengdu adopt oil-gas dual-use engine. Natural gas is used on buses and buses. The characteristics of natural gas engine are slow combustion speed, high pressure, high ignition voltage and high heat load. Its combustion mechanism and fuel oil have changed, which requires the structure of spark plug, high voltage wire and ignition coil to be changed. In view of the characteristics of gas engine, Hunan Torch Company adopts the integral design of spark plug, high voltage wire and ignition coil. Oil and gas dual high voltage wire and oil and gas special purpose are used. The spark plug can reduce the loss of electric energy transmission, stabilize the output waveform, improve the engine start-up performance, purify the cylinder, reduce carbon deposit, prolong the engine life, and stabilize the system.

In terms of industrial spark plugs, the most famous non-American STILL company is. Industrial spark plugs are mainly used in generating units, oil pipelines and other aspects. Their working environment is more harsh than that in gasoline engines. Their fuels are mainly waste gas from garbage disposal, which is polluted, corrosive, and atmospheric pressure. The technical requirements for spark plugs are very strict. Therefore, precious metal spark plugs such as iridium, platinum, iridium and rhodium are generally used. Side electrodes with two or four poles are very common. The calorific value is also very high, and the structure is different, which is difficult for ordinary spark plugs. Due to the difficulty of processing industrial spark plugs and the complexity of process control, only TORCH can do it in China.

The spark plug industry in China has a history of nearly 50 years. In the past 10 years, by introducing advanced technology from abroad, the spark plug has developed rapidly. The production scale of the Hunan torch spark plug in China is the sixth largest in the world, with an annual output of nearly 100 million. The product quality is also close to the level of the world's famous brands such as NGK, champion and Bosch.

In a word, spark plug is developing in the direction of long life, miniaturization, environmental protection, energy saving and scale. Domestic spark plug manufacturing level is also constantly in line with the world giants. How to establish a foothold in this industry? In addition to maintaining the advantages of labor cost, price, after-sales service and supplier relationship, it is necessary for domestic spark plug manufacturers to form their own core competitiveness in R&D capability, high quality and high value-added product development, which is also the inevitable trend of spark plug industry development.