Recently, Volkswagen (China) Sales Co., Ltd. filed a recall plan with the General Administration of Quality Supervision, Inspection and Quarantine. From February 18, 2016, it will recall some imported 2011-2014 Volkswagen Touareg hybrid vehicles. The production date is September 6, 2010. As of August 13, 2014, according to the company's statistics, a total of 2,120 vehicles were involved in mainland China.
If there is water leaking into the trunk and cannot be discharged, the water will accumulate under the floor of the trunk and cannot be found by visual observation. If the water accumulates too much, the high-voltage battery will be immersed and a short circuit will occur. In some cases, it may cause ablation of the two poles of the high-voltage battery or even cause a fire, which poses a safety hazard. Volkswagen (China) Sales Co., Ltd. will entrust an authorized dealer to install a drain valve in the spare compartment of the trunk of the vehicle involved in the recall to eliminate safety hazards.
Volkswagen (China) Sales Co., Ltd. will notify the owner of the relevant defect information by telephone and written (registered mail) from the date of the recall. For users who do not have customer files, you can use the official website of Volkswagen (China) Sales Co., Ltd. ( http://vico.vw.com.cn ) to provide free service hotline and related authorized dealers. Users can also visit the AQSIQ website for import and export commodity inspection (jyjgs.aqsiq.gov.cn), the AQSIQ Defective Product Management Center website ( ) and the WeChat public account (AQSIQDPAC). to know more information. In addition, you can also call the quality hotline of the AQSIQ Defective Product Management Center or the quality hotline of the local entry-exit inspection and quarantine institution: 12365 (switch No. 2) to reflect the problems in the implementation of the recall activities or to submit defects.

The common methods used in cutting metal are oxygas flame cutting, air carbon-arc cutting, and plasma-arc cutting. The method used depends on the type of metal to be cut and the availability of equipment. As a welder, oxygas or air carbon-arc equipment is the most common type of equipment available for your use.

The oxygas cutting torch has many uses in steelwork Often, the welder finds the cutting torch an excellent tool for cutting ferrous metals. This versatile tool is used for operations, such as beveling plate, cutting and beveling pipe, piercing holes in steel plate, and cutting wire rope.

When using the oxygas cutting process, you heat a spot on the metal to the kindling or ignition temperature (between 1400°F and 1600°F for steels). The term for this oxygas flame is the preheating flame. Next, you direct a jet of pure oxygen at the heated metal by pressing a lever on the cutting torch. The oxygen causes a chemical reaction known as oxidation to take place rapidly. When oxidation occurs rapidly, it is called combustion or burning. When it occurs slowly, it is known as rusting.

When you use the oxygas torch method to cut metal, the oxidation of the metal is extremely rapid and part of the metal actually burns. The heat, liberated by the burning of the iron or steel, melts the iron oxide formed by the chemical reaction and accelerates the preheating of the object you are cutting. The molten material runs off as slag, exposing more iron or steel to the oxygen jet.

In oxygas cutting, only that portion of the metal that is in the direct path of the oxygen jet is oxidized. The narrow slit, formed in the metal as the cutting progresses, is called the kerf. Most of the material removed from the kerf is in the form of oxides (products of the oxidation reaction). The remainder of the material is molten metal that is blown or washed out of the kerf by the force of the oxygen jet.

The walls of the kerf formed by oxygas cutting of ferrous metals should be fairly smooth and parallel to each other. After developing your skills in handling the torch, you can keep the cut within close tolerances; guide the cut along straight, curved, or irregular lines; and cut bevels or other shapes that require holding the torch at an angle. Partial oxidation of the metal is a vital part of the oxygas cutting process. Because of this, metals that do not oxidize readily are not suitable for oxygas cutting. Carbon steels are easily cut by the oxygas process, but special techniques (described later in this chapter) are required for the cutting of many other metals.

Cutting Equipment

Cutting Equipment,Gas Cutting Machines,Gas Cutting Nozzles,Cutting Torches

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