What is the most important thing about a car? Of course, the three major parts of the car, the engine, transmission, chassis, there are a lot of users on the Internet have responded to the situation of their own car leak, which in the end is the quality of the problem or other reasons? In fact, whether the car is a new car or an old car, the problem of oil leakage may still occur. In the end is why?
Neither the engine nor the gearbox is a whole, nor is it totally sealed. An assembly is a combination of hundreds of small parts, and we have to rely on "oil" for lubrication, heat dissipation, etc. Therefore, the occurrence of oil leakage is very common, and the leaking places are the joint positions and the positions near the bearings. Therefore, we can follow the oil traces to find out the leakage.
In the following situations, the oil leakage screw will surely not be tight and slippery; the most common place is the fixing screw of the oil pan (it is easy to break off with too much force). It is very troublesome to take it out, and you have to use it. Professional tools can solve the problem. If the torque is not enough, it will seep out of the surrounding oil.
Oil drain screws (oil discharge screws for engines and gearboxes. The phenomenon of slipping is common due to frequent dismantling); some models (such as Toyota) have disposable gaskets on the drain screws, and each replaces. Once the oil needs to be replaced, many times the gasket failure will lead to oil leakage, and the drain screw appears slippery wire, most of the maintenance workers will choose to put waterproof adhesive tape on the bread, and then play sealant practice. But the professor thinks it's better to change the screw.
The oil filter screw (the mounting machine oil grid too hard will appear the situation of sliding teeth); directly replace the filter screw, but the probability is not high, the general appearance of the slide wire is the screw thread on the oil filter, Professor needs to remind is the oil The filter does not need to be tightened too tightly.
Oil seal aging; Oil seal is also called oil guard ring, which is an indispensable non-metallic fitting in the car to keep rotating parts, mainly to prevent sediment, dust, water and gas from invading the bearing from the outside and limiting the leakage of the oil in the bearing. Once there is aging, it will surely leak oil. Most of the oil spills are the front oil seal of the engine and the axle shaft oil seal on the transmission. They are generally leaky, and which of the oil seals will be directly replaced will solve the problem.
Sealing gasket aging; General engine will have valve chamber cover gasket, engine cylinder gasket and oil pan gasket (some will use sealant instead), as long as the above three gasket problems, will lead to oil leakage At this time, you need to replace the gasket.
The occurrence of oil leakage on the engine and gearbox is mainly divided into the following types. One is clear leakage, the other is leakage and the other is oil dripping.
Most of the reasons for leaking are because you have worn the oil sump. This is a clear leak. You should not choose to continue driving. You should call for assistance. Otherwise, if you continue to drive down, your car will show Lava, Locked up and finally overhauled the engine.
Leakage refers to the presence of oil traces on the engine block, and even a layer of black sludge may be adhering to the vicinity. In the event of such a leak, there is no need for rush repair.
Dropping oil, after staying in the car for a period of time, it will be found that there will be traces of oil underneath the car, which is generally a poor seal of the oil pan, oil leakage, slippery oil leakage, and this happens even though the oil is not for a short time. Will leak light, but it is recommended to replace it as soon as possible.
The professor concluded: Some people must come back and ask the professor. Can you find that the car could not be opened if it leaks? As long as it is not a large area of ​​oil leakage can be opened, found that there is a large area of ​​oil spill or drop of oil, the most quickly go to the repair shop to replace the accessories, otherwise by the time it went to even the oil is leaking, and you Not worth the candle.
1.Welding materials
In Welding, substances called filler materials or consumables are used. As the name implies, these substances provide filler or a body of molten materials that provides a strong bond to be formed between the base metals used. Most welding processes will also require some form of shielding to protect both the main components and filler from being oxidized during the process.
The type of welding materials used during welding depends on the nature of the job intended. Electrodes draw the necessary energy in order to perform welding applications. Luoyang Golden Egret Company has any kind of welding materials include CTC Welding Rod /rope, SCTC welding rod/rope, TC electronic welding rod, Ni-based welding rod, flux-cored Welding Wires, solid welding wires and etc.
Welding can be applied in different kinds of industries such as building and construction, oil and gas, marine, power generation, steel, mine tools, automobile, transportation and etc.
2. Welding rod
1)Cast tungsten carbide based tubular rod
The hard phase of the rod is cast tungsten carbide which leads to higher hardness and better wear-resistance.
Wear resistance: the wear resistance is 6-7 times better than others. Tested by ASTM G65
Mainly used for Mining machinery, Geological tools, Petroleum drilling tools etc, by Oxy-Acetylene with weak carburizing flame.
Product recommendation:
GT1103 (CTC, 60-80 mesh),
GT1103-1(CTC, 20-30 um),
GT1103-2(CTC, 40-60 um)
2)The hard phase of tube rod is carbide pellets which leads to higher impact resistance and better wear resistance than CTC cloase rod.
Wear resistance: the wear resistance is 6-7 times better than others. Tested by ASTM G65 wear test.
Mainly used for mining machinery. Geological tools etc; by Oxy-acetylene with weak carburizing flame.
Product recommendation:
GT2102 (Cemented carbide grit, 30-60mesh)
GT2102-2(Cemented carbide grit, 30-40mesh)
GT2102-3(Cemented carbide grit, 40-60mesh)
3)Tube rod is composited by Cemented carbide pellets, Spherical CTC and CTC. The layer has higher impact resistance, better wear resistance and good fluidity than other rods.
Wear resistance: the wear resistance is 6-7 times better than others. Tested by ASTM G65.
Mainly used for oil method drill bits, such as Tri-cone bit, Steel tooth bit, PDC bit, etc. By Oxy-Acetylene with weak carburizing flame.
Product recommendation:
GT3302 (carbide pellets, 20-40mesh)
GT3302-1(carbide pellets, 14-40um)
4)The hard phase of the rod is monocrystal WC, the welding layer has a higher wear resistance and better impact resistance.
The wear resistance is 6-7 times better than others, tested by ASTM G65 method.
Mainly used for the repair and strength for oil drills bits, such as PDC bit diameter holding by Oxy-Acetylene with weak carburizing flame.
Product recommendation:
GT4104 (Monocrystal WC, 80-200mesh)
3. Welding Rope
Made form mixture of CTC and self-fluxing nickel alloy covering on nickel wire. The CTC is in spherical or irregular with good wear resistance; the nickel alloy is in spherical or nearly spherical shape with good wettability and erosion resistance and better corrosion resistance than tubular rod.
Recommend to use Petroleum drilling tools, Concrete mixing blade, Mud pump, Coal sluice, Coal drill pipe, Tunnel drilling machinery etc.
By Oxy-Acetylene Welding with weak carburizing flame.
Product recommendation:
GS110450N (CTC, 4mm, HRC 47-55)
GS110550N (CTC, 5mm, HRC 47-55)
GS110650N (CTC, 6mm, HRC 47-55)
4. Welding Bar
The rod is sintered by CTC and Ni-based powders. The CTC(Cast Tungsten Carbide) is in irregular or spherical shape with better wear resistance and the nickel alloy is in spherical or nearly spherical shape and has good wettability with cast tungsten carbide. The cladding layer has a higher impact resistance and better wear resistance.
Its wear resistance and corrosion resistance is between tube rod and flexible rope.
Mainly used on the Steel PDC bit, Concrete mixer blade, Mud pump, Miner chute, Miner drill stem and Mechanical parts of Tunnel rock drill machine etc.
Welded by Oxy-Acetylene with weak carburizing flame.
Product recommendation:
GD4025253-3(CTC, SCTC, 4*600/6*600)
GD4030303-3(CTC, SCTC, 4*600/6*600)
5. Welding wire
Intensified molybdenum titanium vanadium composite chromium carbide welding wire can improve layer`s bonding strength and tenacity. This wire can use for multilayer welding which has no peel off, and it can maintain good wear resistance under certain impact working condition.
Product recommendation:GSQD671Mo-4(1.6mm)
Medium carbon and high chromium wear resistance welding wire has a higher hardness, stronger wear resistance, and excellent toughness by adding a certain amount of molybdenum alloys and boride. It has a better impact resistance and strip resistance than high chromium cast iron type materials
Product recommendation: GSQD621Mo-4(1.6mm)
With high sphericity & excellent alloy organization, cemented carbide pellet is mainly used in welding, as an adding material of PTA Powder , tubular welding rod, to improve the wear resistance of the workpieces greatly.
Product recommendation: GQ06
Cemented carbide grit with different percent of cobalt has good abrasive resistance and is widely used for making grinding, polishing and cutting tools.
Product recommendation: GS08A
Weld Materials,Tubular Welding Rod,Welding Electrodes,Stainless Steel Welding Rod
Luoyang Golden Egret Geotools Co., Ltd , https://www.hvafspray.com