One, foreword

With the development of China's manufacturing industry in terms of scale and technology and the implementation of the national policy of "casting to welding", the total amount of cutting materials continues to increase, the cutting efficiency and cutting quality requirements are getting higher and higher.

In 2005, China's steel consumption has exceeded 300 million tons, if 40% of the material needs to be cut, the total has exceeded 120 million tons, in this total, most will be cut with plasma arc.

Plasma arc cutting has been paid more and more attention and preferred by people.

The use of domestic plasma arc cutting machine can be roughly divided into three situations, one is with the CNC cutting machine with the so-called machine with plasma arc cutting machine;

Two is used for profiling device, cutting car and other machinery semi-automatic cutting;

Three is purely manual operation with small plasma arc cutting machine.

These three uses constitute the total amount of domestic plasma arc cutting machine.

According to industry estimates, China's 2005 CNC cutting machine sales has reached more than two thousand sets, taking into account some machine tools only equipped with flame cutting, and some machine tools equipped with two plasma arc cutting machine, therefore, 2005 machine with plasma arc cutting machine consumption is roughly more than two thousand sets.

In addition, the annual sales of the profiler is about thousands of units, the sales of the cutting car is 10,000 thousands of units, so the plasma arc cutting machine for semi-automatic cutting purposes is close to more than 10,000 units.

Manual operation of the number of machines, the number of its will exceed the first two uses, estimated at more than 20,000, three cases combined, the total number of sales in 2005 is about 35,000 sets.

At an average price of 15,000 yuan per unit, the total output value is about 530 million yuan.

Therefore, the total output value of plasma arc cutting machine is not large, which also reflects the strength and technology of the companies involved in this industry, but the total output of this industry is small, but it has a wide range of applications.

Therefore, one can expect a large and rapid increase in its output value.

Reflect domestic levels of plasma arc cutting machine is a machine part, according to my company sales estimates, MTK share not more than 10%, in this part of the machine, which is 2005 domestic plasma arc cutting machine only 200 or so, estimated at $50000 each on average, a total of only 10 million or so, this shows that the numerical control cutting using plasma arc cutting machine, basically remains JinKouJi oneworld, homebred 35000 machines are used in the horizontal lower situation, if the JinKouJi calculating average 120000 yuan each, are JinKouJi totaling 250 million yuan or so, accounts for about half the national output.

From the total output value distribution can be seen, the technical level of the domestic machine is relatively low, mainly used in the cutting quality, production efficiency requirements are not high in the field, that is, the 200 machines with plasma arc cutting machine, is only used for general requirements of CNC cutting machine tools.

In addition, the technology used by the domestic machine is relatively backward, although the domestic power supply also has thyristor, inverter and other types, but in quantity, or enhance the leakage of magnetic flux transformer power supply based products.

As we all know, this is a kind of "high consumables, high energy consumption" product.

From the above analysis, we can see that:

1. The scale of domestic plasma arc cutting machine industry is still small, and it is in development.

2, domestic machine is mainly used for occasions with low requirements, machine plasma arc cutting machine is basically imported machine, but the situation is changing.

3. Domestic machines are facing upgrading.

But in recent years, domestic plasma arc cutting machine is not stagnant, but there is a lot of progress, first of all, the diversification model, is no longer a single magnetic flux leakage power, small basic popularization, inverter power supply has been falling in price, although the repair rate is not ideal, but the overall trend is quality rapidly improved.

In addition, for ordinary cutting purposes, domestic machine with plasma arc cutting machine has basically replaced the imported machine.

The main reason for the low usage is lack of publicity and understanding.

Taking LDK series products of thyristor power supply as an example, the stability and reliability can be guaranteed as a plasma arc cutting machine in ordinary occasions.

Its cutting ability, incision quality and the life of wearing parts have been basically equivalent to the imported machine, since 2000 in the market, has been recognized and affirmed by more and more users.

In short, domestic plasma arc cutting machine and the international level there is a gap, but also not too far away.

In recent years, especially since the year 2000, there has been a great deal of technical accumulation and a deep understanding of some basic problems.

Especially driven by the CNC cutting boom, there have been many powerful enterprises, joined the ranks of the new plasma arc cutting machine research and development, can be expected in two or three years, there will be a new situation.