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14.09.2020
Once in the evening shift, the worker threw the maculature into the press and launched the press.
In the press installed "classic" Soviet hydro distributors.
The hydro-distributor (which in theory should be thrown over itself when the nominal effort is reached) - is thrown over when it is desired, as a result of which the workers "press" the press forcibly until the reduction valve works. (which, by the way, the direct text is recommended in the instructions). It can be repaired forever and completely.
and suddenly! (and it always happens suddenly) the press frame breaks at the top of the weld.
At the same time, from the deformation, a crack is formed on the crust of the oil pump on the high side.
The worker is poured with a stream of oil, which is why he is frightened and jumping back.
No means of emergency stop by the operator in the press is provided. at all.
There is no emergency button. Not a splitter. The entire circuit consists of a trigger with a pickup and a pair of conveys.
When it was created, the experience of the leading world manufacturers was taken into account; many nodes and mechanisms in the process of development were replaced by inexpensive and widely distributed domestic analogues. Without the slightest loss in the performance and reliability of the unit.
The "Stop" button on the starter, according to the operator, "was pressed with a crush, and then started to be pressed without a crush, but nothing turns off."
The operator ran to another room to ask the boss what to do now.
The operator was not yet far away as the oil fountain stopped. Exhaustion of oil reserves in the hydro system.
No means of controlling the presence of pressure behind the pump and fluid in front of the pump are provided.
Within a few minutes, while the worker was looking for the boss and they were going to the press - the pump had time to hit the bearing (there are sliding bearings), and he crashed.
There is no momentary muffle or other protection. The electric motor stopped, remaining under tension. The clothes began to warm up.
In the eyes of the operator and the boss, the engine stumbled.
Neither the motor-automat, nor just the machine, nor the inserts or any other means of protection in the circuit of the press is provided.
I repeat.
Not an automatic motor. Not just a machine, not an insert. No other means of protection in the press circuit is provided.
It is believed that the machine must be somewhere else and that is enough.
He was. in the advance. At 63 amperes.
There is no electrician in the office.
While the operator and the bosses were looking for the socket, which includes the press, and pulled out the fork, a loud click occurred, and the smoke went out of the starter.
Thus, in a few minutes, all the nodes and aggregates became useless in the press.
In fact - all of the above is called "easy to get rid of."
Because no one was driven by electricity, and nothing burned (and there was a whole hangar of cardboard and cloth).
The main cause was dirt in the reduction valve, due to which the pressure was exceeded.
Because after another leak (native hydraulic tubes, yes) some liquid of unknown origin was poured into the hydro system.
You may have read the above-mentioned advertisement... but miracles don’t happen!
And poor quality (therefore very quality painted!) welding that did not provide the necessary reserve of strength.
From the stop button banally broke off a piece of plastic.
Have you saved?
It is believed that any imported equipment is more reliable than Russian. However, the experience of people dealing with foreign press shows that this is not always true.
Now the joke aside. I will explain everything now.
Not any one. And the one, in the development and production of which did not save on the lights.
The problems of Russian technology are entirely different.
Let’s look at the entire catalog of presses from the manufacturer and compare the same in mechanics and effort presses, but with different clothes.
Press in the form "as described in this post" - 100 thousand. The rub.
He is, with a button post instead of this miracle - 130 thousand. The rub.
He is also, with a full-fledged control and protection system - 190 thousand. The rub.
Guess which performance is purchased massively, and which exists in one copy for exhibitions?
For reference: similar French press stOit 2950 (I'm stuck, sorry) euro + delivery. And there is no option in it at all when ordering "to give up the control scheme and security chains."
So here: all the cheapness of domestic (and Chinese) production has one reason:
Throw away everything, everything that can be done without.
Well, there can be no "excellence over all analogues and 3-5 times cheaper" in a simple thing without any know-how.
And the reliability of the French press (the same nearby is the purchased b/u of 1988 - still passes without serious problems) - is due to the lack of attempts to save on everything in a row.
It’s a bit stupid for consumers to try to save every penny first and then complain about the manufacturer’s crumbs, isn’t it? It would seem that it could be easier: pay a decent price to the manufacturer - and get a decent product.
And this applies to everything, in general, from a "tushenka" of 19 rubles per bowl to apartments of 20m2 and without parking space.
I talked to a colleague from JCH. We talked about Sam.
He says:
“We brought a German cable here. Fucking full of. If you fold three times, the insulation breaks. It just burns out of a fireplace. As a toast.”
(I think everyone has seen the video of the fuel cheese.)
I became interested. We have half-factory with this cable mounted.
I decided to experiment.
I picked up a piece of cable and started pushing around. It lasted five minutes until my fingers were tired. There is no trace of isolation. Checked with a meger - > 5 MO (very good).
He took a gas burner and tried to burn. The cable burned, deformed, blackened... but never wanted to burn.
It is strange.
The next day a thought came to my mind. Call a colleague: can you say at least roughly, and where did you buy this cable and why?
Purchased in MSK. It’s about four times cheaper than what we buy in Germany. And even cheaper than the usual VHG (so it actually bought it).
But miracles do not happen.
The control question:
What is written on your cable?
Hm... nothing. What should be written there?
In fact, there is written (precisely, printed on the printer along the entire length of the cable) a lot of everything. Manufacturer, type, section, batch number, VDE icon, and length markings through every half-meter.
I see only three options.
Fake cable from a world-renowned manufacturer
Cheap cable for sale in Russia
It wasn’t that cable.
Which is correct, I do not know. I am not a prosecutor, nor an inspector of technical supervision, to find out this, and also in a foreign office.
I do not have to go to prosecutors or inspectors. "Satisfied" customers in a week will shoot me in a dark corner.
In what way is it, masqueraded under the cable, cheese, and in general, under everything, freely sold and purchased?
Here is what.
and briefly:
The correspondent has unhinderedly received a certificate of conformity for non-existent cheese made in non-existent production. A day later, the number of this document appeared in the official register on the Internet.
Deciding that this was a coincidence, we repeated the attempt and accidentally obtained a second registered declaration.
Two days later, the declaration-provided “carpet” of our “production” was ready to be accepted in retail stores.
I only had to spend some money.
“Now we can sell a bucket with the substance to some store, saying that inside is natural cheese. They will believe us. We have officially declared our “product”. And no bureaucratic barriers our new business has met on its way, while no one has seen what we have "produced."
I do not know who is concerned with this. In other words, it is a full PC.
How legal this is, don’t ask, I don’t know. I am an engineer, not a lawyer.
You can sell any name, but under any name. But why do they buy it, and massively?
The answer is banal: 1) cheap and 2) there is no brain in consumers to understand: cheap just doesn’t happen.
This is actively used by local manufacturers and Chinese, and, unfortunately, quite serious and self-respecting offices.
They make a cheap version of the products for sale in Russia.
And if there are administrative restrictions on a-la self-sanction - it can be too expensive to... but to pair.
For housing and other municipal offices, the situation is now generally clear: according to the law, they are obliged to buy the cheapest offer that meets the requirements.
(How “requirements are met” – see above). So, actually, and bought a fake under ___ cable.
The correct approach should be completely different: the cheapest offer must be discarded immediately.
But here is the problem: and the high price does not mean anything at all. And to determine the quality itself is not always possible. Well, it is impossible physically to be an expert at the same time on cheese, cable, furniture, roof materials, screwdrivers, and so on.
It remains only to ask yourself a very simple question - and how is it that people have done normal repairable things for so many centuries, and in the last 15 years as a sum all went in the pursuit of profit. And all this against the backdrop of the fast-growing consumer credit market.
In the 1980s, when the market was not yet sealed, marketers engaged in their usual affairs - describing the merits of new goods.
In the 90s, the market was slightly shrinking and they decided to use them in a broader context - somehow to tie human habits and preferences to a new type of goods. Thus e. Technical characteristics at the same time went to the backdrop, but inertia still remained high. As well as reliability. And it was also used to brainwash consumers. Until the 1990s, all goods were of high quality. The engineers simply did not fit the idea in the brains, how this can be done shit for the end consumer, then marketers expanded this idea a little and deepened it. There was a middle class - high-quality equipment for their money and a top class, which everyone admired. It was, of course, before, this division, but it was marketers who decided to bind classes not to functionality, but to the life of the product. And the niche of cheap Chinese crafts was occupied by the Chinese, who had just begun their journey as a single major manufacturer. And the man in the 90s hardly knew - you can buy shit cheap, you can buy good equipment for normal money, and if you are an oligarch, you can buy space at all.
But the zero market ended, plus there were a few other important changes. In the first, computerization, which on the one hand allowed very accurately to calculate the life of the parts of the product, and in the second, this same computerization now allowed instead of the development of circuit engineering to use the typical microprocessors with the appropriate program and save on the setup needed to add new options. With the term of service really not all went so well. It was possible to accurately calculate only the lifetime of polymer products, almost a week. This is when a new plastic from the factory with a stone can not be broken, but three years pass and it begins to crumble in the fingers. In terms of degradation of electronic components mainly played with heat modes. With wrapping products, this was best done - we took the wire slightly thinner and the transformer is already heating up like a rage and in a year it will probably die, just by the end of the warranty. But the widespread distribution of DC-DC has put a cross on this promising venture. And on motorcycles such a trick is afraid to use, because. You can get into a mass marriage at the height of the guarantee. The same Nicole Greek has a fairy tale about an Opel with a robot box, which fails the adhesive engine due to the wear of the brushes. And after the replacement, he runs the next 100 ticks. That is, they would be happy to reduce the price of the motorcycle itself, but it is scary to get on a mass response. Therefore, they deal with such half-measures. Typical damage. Electronic circuits themselves traditionally use either heavy thermal mode on high-level integration chips, lead-free soldering and small zero resistors as protectors. The latter went very well on the Macbook Air, where the death of such a resistor led to the key with the touchpad. And the new key goes along with the top panel, changes in assembly and costs about 20 thousand. I do not see any special savings here, a purely harmful marketing intent. And with the heavy thermal regime were played by HP engineers, when in the 11th year, almost 100% failure of the northern bridge in certain models, on the seventh month of warranty. A little underestimated, maybe.
Looking at all that shit I want to say. The consumer wants to be cheaper. Of course, marketers do not only impose their stereotypes, but also look back at the consumer to give him the illusion of what he wants and this whole system with positive feedback goes all the way and it would be wrong to explain all the emerging processes only from some one point of view. But the most offensive thing - this is the golden rule of the 90s, when you could choose the quality of the goods at the price now absolutely does not work. Now you will get a whole shit for any cloudy money. Purchasing quality goods has become a lottery.