Principle of the battery

In chemical batteries, the direct conversion of chemical energy into electrical energy is the result of spontaneous chemical reactions such as oxidation and reduction inside the battery. This reaction is carried out on two electrodes. The negative electrode active material is composed of a reducing agent having a relatively low potential and being stable in the electrolyte, such as an active metal such as zinc, cadmium or lead, and hydrogen or a hydrocarbon. The positive active material is composed of an oxidizing agent having a positive potential and being stable in the electrolyte, such as metal oxides such as manganese dioxide, lead dioxide, and nickel oxide, oxygen or air, halogens and salts thereof, oxyacids and salts thereof, and the like. . The electrolyte is a material having good ionic conductivity, such as an aqueous solution of an acid, a base, a salt, an organic or inorganic nonaqueous solution, a molten salt or a solid electrolyte. When the external circuit is disconnected, there is a potential difference (open circuit voltage) between the two poles, but there is no current, and the chemical energy stored in the battery is not converted into electric energy. When the external circuit is closed, a current flows through the external circuit under the action of the potential difference between the two electrodes. At the same time, inside the battery, due to the absence of free electrons in the electrolyte, the transfer of charge is inevitably accompanied by oxidation or reduction of the interface between the bipolar active material and the electrolyte, and migration of the reactants and reaction products. The transfer of charge in the electrolyte is also accomplished by the migration of ions. Therefore, the normal charge transfer and mass transfer process inside the battery is a necessary condition for ensuring normal output of electric energy. When charging, the direction of the internal power transmission and mass transfer process of the battery is exactly opposite to the discharge; the electrode reaction must be reversible to ensure the normal mass transfer and transmission process in the opposite direction. Therefore, the reversible electrode reaction is a necessary condition for constituting a battery . For Gibbs reaction free energy increment (focal); F is Faraday constant = 96500 library = 26.8 ampere-hour; n is the equivalent number of battery reactions. This is the basic thermodynamic relationship between the battery electromotive force and the battery reaction, and is the basic thermodynamic equation for calculating the energy conversion efficiency of the battery. In fact, when current flows through the electrode, the electrode potential deviates from the thermodynamically balanced electrode potential, a phenomenon known as polarization. The greater the current density (the current passing through the unit electrode area), the more severe the polarization. Polarization is one of the important causes of battery energy loss. There are three reasons for polarization: 1 the polarization caused by the resistance of each part of the battery is called ohmic polarization; 2 the polarization caused by the blockage of the charge transfer process in the electrode-electrolyte interface layer is called activation polarization; - The polarization caused by the slow mass transfer process in the electrolyte interface layer is called concentration polarization. The method of reducing the polarization is to increase the electrode reaction area, reduce the current density, increase the reaction temperature, and improve the catalytic activity of the electrode surface.

Tractor is developed on the basis of the Italian Wheeled Tractor chassis technology, adopting the British technology-based 6-cylinder turbocharged engine. The machine body has a streamline configuration. It is low in specific fuel consumption and better in power economic efficiency. It has multiple gears and a wide speed range. Besides, it is flexible in steering and easy to operate.

Model	ME1200	Unit
Overall dimension		mm	4600*2150*2870
Min. Operating weight		kg	4205
Wheel base		mm	2510
Wheel track	Front	mm	1610
	Rear	mm	1620
Min. Ground clearance		mm	430
Min, Turning radius		mm	5500
Gears		/	16F+8R
Engine	Max torque	N.m	430
	Displacement	L	7.4
	Fuel tank capacity	L	240
	Engine rated power	KW	88.2
	Fuel consumption rate	G/kw.h	≦242
Drive train	clutch	/	Single disc, dry, independent dual-stage
	Standard PTO speed	rpm	(760/850)/(540/760)(760/1000)/(540/1000)
	Gear shift mode	/	Meshing gear shift
Break system	type	/	Mechanical brake, hydraulic brake, disc
Walk system	Front tire	/	6.5-20
	Rear tire	/	16.9-34
General parameter	Max. Lifting capacity	KN	21.2
	Tillage depth adjustment	/	Draft and position adjustable

After-sales service

 

1.Warranty

Gold Dafeng grants our clients twelve-month-period warranty for any machine purchased from us which could reach the certain target quantity. During the warranty period, in case the defect of material or workmanship has occurred with spare parts in normal operation, the defective part will be repaired or replaced free of charge, at our discretion.

 

2.Spare parts

Gold Dafeng is dedicated to provide our clients with genuine spare parts with the highest quality, exact fitness and appropriate function. With our global distributor network, you are guaranteed with fast delivered and services, wherever you are, please submit your spare parts request to us, and list products name, model, equipment serial number, description of required parts. We guarantee that your request will be handled quickly and appropriately.

 

3.Installation&Maintenance

Gold Dafeng is able to provide you with the overall installation of complicated machinery and equipment, allowing you to start the normal operation of handling machinery immediately. After installation, we will make inspection of the whole machine, operate equipment, and provide you with testing data reports of installation and operation.

 

4.Training

 

Gold Dafeng  offer perfect facilities and comfortable environment and can provide training service to different users. The training sessions include product training, operation training, maintenance know-how, technical know-how training, standards, laws and regulations training and other training, all of which are tailored to fulfill your individual needs. Training programs can be conducted in our factory field, or at the client`s site.

 

5.technical advice

Gold Dafeng can also help clients coordinate with trained service personnel to provide you detailed and extensive knowledge about your specific machine. With our technical advice, your machine service life can be significantly prolonged and sustained with high capacity.

 

120Hp Wheeled Tractor

120Hp Wheeled Tractor,120Hp Compact Wheeled Tractor,Four Wheel Drive Tractor,Wheeled Mini Farming Tractor

Shandong Gold Dafeng Machinery Co., Ltd , http://www.golddafengharvester.com