Of course, there are also domestically produced watches, but they cannot match this watch in terms of the number of parts. The more parts it has, the higher its failure rate is. However, labor engineers are famous for their accuracy, so it means that its craftsmanship is more advanced.
At the same time, the texture of the material should also be better.
However, as Liu Lang patiently spent half an hour disassembling the watch, the position and shape of each part was firmly remembered in his mind.
But this definitely does not mean that Liu Lang can completely imitate this watch now. Even if he imitates it, this watch will definitely not be comparable to that of a laborer. The key lies in the defects in materials and processing technology.
There is no doubt that apart from gold, most of the materials used in this Rolex watch are steel. These steels are called stainless steel and will not rust when exposed to water.
Stainless steel has been widely used after more than 20 years. Even though the knives used by ordinary people to cut vegetables are made of stainless steel, in the early 1980s, there were only a few factories in the country that could produce stainless steel.
Liu Lang had read in a book that in fact, as early as the early 1960s, Shanghai Iron and Steel Co., Ltd. at that time used the return oxygen blowing method to smelt stainless steel. In 1961, Shanghai Iron and Steel Co., Ltd. used a domestic 76 mm two-roller cross-rolling piercing machine to smelt stainless steel, which was the first production in my country. Stainless steel pipe blanks, and successfully trial-produced my country's first aviation stainless steel pipe that was completely localized from raw materials to finished products.
Since then, my country's stainless steel production has gradually begun to develop. However, due to various reasons, for a long period of time, the development of stainless steel has almost stood still. The stainless steel produced can only be used in the aerospace industry. As for the common people, that is Don't even think about it.
Liu Lang's grandfather has a watch, which he bought for more than 100 yuan five years ago. It is made of all steel. Unfortunately, it is afraid of getting wet. If it gets wet, wipe it clean quickly, otherwise it will rust.
Rolex watches obviously do not have such problems. Obviously, stainless steel is widely used in Western countries.
In addition, the grinding level of this watch is also very high. There is currently no corresponding machine tool in China that can grind such smooth and tiny parts.
In 1980, the country had a statistics on the current situation of the machine tool industry. At that time, the country had 2.83 million machine tools, of which roughing lathes accounted for 60% and finishing grinders accounted for less than 10%. The reason for the backward technology
The reason is that there are many roughing machines and few finishing machines.
For example, at the bearing factory where Liu Donglai originally worked, the machine tools used in the factory were still the most primitive centerless grinders, double-end grinders, and roll grinders. These machine tools were born in the 1920s, and their precision was very low. Generally, steel balls smaller than one or two centimeters could not be ground.
In the entire country, the accuracy of the highest-tech grinding machines is only at the millimeter level, while foreign countries have already manufactured microprocessor-based machines in the 1970s.
The precision of digital control and adaptive control technology for grinders has reached the micron level. Compared with Western countries, the technological gap between our country and Western countries is huge. Needless to say, this is the smallest watch among them.
The gear is only two to three millimeters in size. This tiny part is also covered with patterns, which are almost thinner than a hair. It is obviously polished using CNC machine tools.
Liu Lang looked up information in the library of Huaxia University and saw that in the country's "Precision Machine Tool Battle" in the 1960s, the Capital No. 2 Machinery aimed to catch up with the most advanced cylindrical grinder in foreign countries at that time and successfully developed and machined cylindrical grinders.
The MG1420 high-precision grinder has a precision of 1~2 microns and a smoothness of level 14.
Machine tools are famous for their high-precision coordinate boring machines. As a result, a catastrophe ensued. Machine tools were regarded as products of capitalism and were trashed. Designers were also regarded as the compradors of capitalism in the country.
, they were criticized and criticized, and not many of them are still alive today. As for the various technical parameters, they can’t be found.
It's funny to say that in the 1950s and 1960s, the country put forward the slogan "Machine tools are called the working machines of the mechanical industry and are the "chief craftsmen" that promote the development of mechanical industry technology." From this, the country also invented CNC machine tools.
, almost at the same time as the island nation of the United States, but its subsequent development was very different, and it is already poor today.
There is no edge. The biggest problems are: first, there is almost no development in the research and development of CNC systems, functional components, and cutting tools. The country also lacks careful planning and is out of touch with the development of the main engine. Second, there is a serious lack of technical experts and skilled workers.
In terms of product accuracy, quality, and reliability, the technology is not too strong and the supporting equipment is not up to standard.
If we want the country to become an industrial power, materials and machine tools are fundamental. If these two are not up to standard, any engine will be useless.
In addition, there is the cultivation of talents. Xiong Huaizhi once studied in Germany. There, he saw that the key types of work and assembly and debugging technicians in the factory were all over fifty years old and had unique skills. The reason is very simple. There is no such thing in the machine tool industry.
Decades of experience and lessons cannot produce qualified technicians and technicians, and in China
, even after twenty or thirty years, when an old worker reaches his fifties, he either retires or becomes a leader. The reason may be due to personal complacency, lack of understanding of market demand, or the thought of fame and fortune.
, or due to some irresistible temptations, eager for quick success and opportunism, the result is a huge waste of talents!
Engineering talents must rely on "stupid effort and endurance of loneliness" to eliminate unreliable factors one by one, incorporate the results into the design, process, and manufacturing processes to become specifications, strictly implement them, and then obtain feedback information from practice.
Make improvements and finally accumulate a lot of valuable data. This is the most valuable experience and the core strength of an enterprise. Countries are much worse in this regard.
There is no shortage of talents in the country. Some people even surpass the professional talents in the same industry abroad. Even if they have not studied many related majors, such as the control system of CNC machine tools, which requires a large number of computer-related talents, and the country does not even have computers.
There are only a few of them, but under such seemingly impossible conditions, in the late 1950s, we researched and developed CNC systems simultaneously with the world, and its performance was not much lower than similar foreign products.
Just like when the country wanted to develop nuclear bombs, it relied on a group of people with abacus to shock the world. Chinese people can always create miracles under impossible conditions. For example, Liu Lang found some information in the library. In the 1950s,
A comrade named Zhou Qin from the Shanghai Machine Tool Factory serves as the director of the Shanghai Machinery Testing and Research Laboratory. His academic qualifications are not the highest. He only graduated from a technical secondary school, but his level is
Very high, and made suggestions that were very advanced at the time, such as using tape frequency division to replace the transmission chain, so that the speed ratio of the workpiece can be changed arbitrarily. This has revolutionary significance for worm grinding and gear processing machine tools. This research has reached
The world's advanced level, but later, this expert also suffered a series of criticisms and finally died tragically. Such an ending is really a pity.
From a watch, Liu Lang saw the country's huge backwardness in machinery manufacturing. There was no capital, talent, or technology. It was not easy to make up for these weaknesses!