Q:Will the brush grease not short-circuit the commutator?

The reverse pole surface should be clean and dry. Any grease, moisture or dust will destroy the carbon film on the commutator surface. The carbon film can not be formed or destroyed. It is very harmful. Grease material will be embedded in the joint between commutator and commutator. Under the action of electric spark, it will be carbonized and conductive. When serious, it will cause partial short circuit between the reversing pieces and reduce the service life of reversing.

Q:Electrolytic water solution, two electrodes are graphite electrode, the negative electrode can produce large amounts of hydrogen, the anode does not produce half of oxygen, and only a small amount of it?

Anodic iron is directly oxidized without oxygen generation

Q:Why is the production of one ton of ultra high power graphite electrode requires 1.05 tons of coke?

Petroleum coke is divided into needle coke and sponge coke and projectile reef, fixed carbon content components of petroleum coke is around 80%

Q:What is the role of the Pt electrode? What is the difference between the graphite electrode and the graphite electrode?

In the electrochemical process, the electrode should not affect the reaction on the working electrode, so platinum and graphite are often chosen

Q:What are the factors that affect the electrode wear rate of machine tools?

Effect of processing voltage on electrode wear. The processing voltage is the average voltage between the discharge time and the gap. When the voltage is lower than the power supply voltage (voltage) 25%, electrode loss will increase, which is due to the electrode and the workpiece is too close, the discharge column energy is too large, the electrodes generate heat radiation is too strong, at the same time, there are a large number of continuous arc discharge. But the working voltage is too high (partial load processing), bad conditions of thermal effect in the gap, is not conducive to the adsorption of copper electrode of carbon graphite, destroy the covering effect. Similarly, the electrode loss increase, therefore, corresponding to different processing standards should be selected to adjust the discharging gap voltage.

Q:Why use platinum ferroalloy instead of iron as electrode?

Its surface properties must comply with the characteristics of the additives so that they can be dispersed evenly.

Q:How long is the graphite electrode machining cycle?

The dust produced in the processing of graphite electrode is relatively large, the possible intrusion to the machine tool guide screw and spindle, which requires a corresponding machining device of graphite graphite dust machine, sealing better, because the graphite toxic.

Q:How can hydrogen be produced by electrolysis of sodium hydroxide with graphite as an electrode?

You can think so, since sodium has been reduced, so there is always an atom is oxidized, it can only be oxygen oxidation reaction

Q:What is the difference between SGL graphite electrode and graphite electrode in general?

Pure graphite is a kind of high-purity graphite. The processing technology of fine graphite and high purity graphite is basically the same, that is, the purity of graphite is different, the purity is higher, and the particle size is basically the same

Q:How to improve the efficiency of graphite electrode milling, please tell me

There are many factors that determine the need to continue producing graphite electrodes, so high-speed machining has become a key manufacturing process in the die manufacturing industry. Compared with the time required for the milling of graphite electrodes, the processing of high rigidity hard steel still takes longer. When milling dies, cavities, and complex 3D surfaces on hard steel, radial runout errors and tool deviations often result in fracture of the tool. When the tool is broken, it will not only stop the continuous processing of the steel, but also affect the quality of the product, which will lead to the scrap of the parts and the waste of the material.