Ladies and gentlemen, can cast aluminum be oxidized, and can it be in contact with water for a long

Produces a dense oxide film that hinders further oxidation, can.

Theoretically, it should be, but in practice it won't, because in the blasting process, the steel shot only removes the floating rust on the surface. If the shot is larger, it may increase the surface roughness and thus make the surface thicker. Jiangsu Xinlei shot blasting machine Yuan Zhongming will answer for you.

Sandblasting will not make the profile thinner, on the contrary, it will become thicker, but it is very small, generally about 40 mesh sand will only make it larger 2 5 . Oxidation will not be, but defective products will be discharged.

Theoretically, it will be thin, and sandblasting is essentially abrasion on the surface. There will be varying degrees of wear and tear.

It depends on the substance.

In general, if an active metal (potassium, calcium, sodium) or peroxide (sodium peroxide) is present, it reacts with water first.

Then there is the reaction of the base and other substances obtained by the reaction.

For example, Na2O2, CuSO4 and H2O, first Na2O2 and H2O generate NaOH, and then Cu(OH)2

The question is not clear. It seems to be a matter of the order of metal replacement: according to the metal replacement order table, hydrogen before hydrogen can replace hydrogen in water, and hydrogen after hydrogen cannot be replaced.

Oxidizing and reducing metals react first, and metals that are more active than magnesium react with water first.

As far as I can see, you have a bit of inflammation of the lower urethra, which should be a non-specific bacterial infection!

Fungal infections are unlikely, and cefradine is basically ineffective against fungal infections!

I still take medicine!!

It is best to take the drug for more than a week, and add a little metronidazole After adding three gold tablets (three gold tablets for two weeks), the purpose is that the constipation urinary tract infection is not easy to break the root, it is easy to **, and the medication time should be longer!!

Don't just suspect that you have this disease or that disease.

You should have prostatitis, and the clear mucus flows out of the urine is white, and you should eat it to treat prostatitis, and you need to specialize. If you go to the hospital for an anti-inflammatory injection, you should not be able to remove the root.

Hello: From a physiological point of view, it is normal to have such a situation occasionally, especially in the adolescent period, which is more likely to have spermatozoa in the summer, of course, it varies from person to person, when the amount is very small or the excitement is not reached, there will only be prostate discharge, that is, the kind of transparent pale white discharge you described, colorless and odorless. Of course, if your symptoms are too frequent and accompanied by other symptoms such as urinary frequency, urgency, dysuria or blood in the urine, you should go to a specialist hospital for examination. After all, the body is the capital of the revolution.

Finally, I wish you soon**.

Experts provide:

Of course, it is very soluble in water, and it is 1:700

Ammonia is ammonia dissolved in water, and you can add as much water as you want.

Ammonia and water are infinitely miscible with water, which is actually dilution.

Soluble in ah, how is water not soluble in water...

In this sentence, it means that you can't continue to fight for some reason, and you should evacuate.

Unintentional love war means not having the heart to think about it anymore.

That is, if it is suitable, it will be done, and if it doesn't work, it will be pulled.

Gigabit Ethernet. Gigabit Ethernet (GBE) is a term used to describe a variety of technologies for transmitting Ethernet frames at gigabit per second, as defined by the IEEE standard.

The standard allows for half-duplex gigabit connections connected through hubs, but full-duplex connections that utilize switches are the standard in the market.

There is a certain relationship between these pressures!

First of all, the system pressure is the basis, fast pressure.

The oil-filled pressure of the booster depends on the system pressure (it cannot be greater than the system pressure);

Secondly, the oil filling pressure of fast pressure and booster is proportional to the nitrogen filling pressure of each (about times);

Thirdly, the feeding pressure is actually defined by two processes, namely the injection pressure and the booster pressure; The injection pressure is related to the fast-pressing oil filling pressure, and the boosting pressure is related to the pressurization and oil-filling pressure.

Fourth, the pressure of pressurization and nitrogen filling is related to the performance requirements of the product to be produced;

Fifth, the calculation between them requires some dimensional data of the die casting machine;

Sixth, these parameters will be described in some press manuals.