Rail wood sleeper advantages

Rail Track Structure

The rail track structure is composed of several main parts, which are steel rails, rail sleepers, track beds, and rail fastening parts. It is defined that sleeper is a device that bears the pressure of the rails and transfers it to the track bed evenly. It is connected to the rails by rail fastening partss. Today we only talk about rail sleepers, focusing on the application of sleepers on the subway.

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Rail Sleeper Types According to Application

The main rail sleeper types in the subway are ordinary sleeper and turnout sleepers. Now the bridge bed is usually used on the bridge. There is no special bridge sleepers. The so-called general sleeper is the sleeper of the ordinary line section, the turnout sleeper is the sleeper used on the ballast, the main difference is the length and position of the bearing.

Rail Sleeper According to Length

The length of the general sleeper is generally mm, which is 2.5 meters; the length of the turnout sleeper varies according to the laying position, ranging from to . Now there are many types of ballast, and there are also longer sleepers, which is rare to be seen.

Rail Wooden Sleeper Raw Materials

There are many kinds of sleeper materials, the earliest is the wood, the word "sleeper" is also derived from this. Wood sleeper is generally made of wood, such as masson pine, larch and other high oil content, its advantages and disadvantages are obvious.

Advantages of Wooden Sleeper

• Good elasticity. The stiffness (elasticity) under the rail is an important indicator of the track structure. Poor flexibility will cause extra damage to the rails and vehicles. The elasticity of the wooden sleeper is very good, and it is not even necessary to use the elastic spacer under the rail directly.
• Simple processing, transportation and laying. The wood can be directly processed into the required size and then the antiseptic solution can be soaked. It is also convenient because it is lighter to transport. Laying is the same reason, light and easy to transport the nature will be laid.
• Easy to connect with rails. The previous wooden sleepers were all made directly by a few dog spikes. Even if they were fixed, it was much simpler than the current type of fasteners. Of course, it is also a disadvantage, and it is not very reliable.
• Good insulation. The combination of wood + anti-corrosion oil, but how good the insulation in the end I .

Disadvantages of Wood sleeper

• Consumption of wood resource is not environmentally friendly. This needless to say, the basic wooden sleeper is grown up in the mountains, although it is now possible to use rotation and other methods to reduce the impact on the environment, but after all, there is still impact? It's okay to take the wood to make furniture.
• Uniformity is not good, uneven elasticity and strength. This is quite understandable. Different trees have different elasticities. Different locations of the same tree are also different. It is like that there are no two identical leaves, and there are no two sleepers. After all, natural growth is not the same model. from. This brings about the uneven stiffness under the rail, which is very unfavorable for the relatively fast running line, so now the wooden sleeper is mainly used in the depot, and the main line is basically unused.
• Erodible, short service life. Even it is soaked in preservative oil, and to be thoroughly soaked (now requiring a immersion depth of more than 13mm, different grade requirements are slightly different, not meticulous), but after all it is still wood, hardness, strength are not available with concrete, etc. Material ratio, wood sleepers can now use 10 years is very good. Ps, wooden sleeper looks black, because it is soaked with antiseptic oil
• The ability to hold dog spike is poor, and geometry is difficult to maintain. The form of the wooden sleeper fixed rail can be seen as the nail to the wooden sleeper (in fact, there are other fastening parts), the wheel will have a lateral force on the spike, the spike will move so are the rails, so that the gauge, which can be simply understood as the distance between the two rails, changes, and you need to adjust.

Due to the shortcomings of wooden sleepers, it was unable to adapt to the needs of high-speed, heavy-duty, passenger-only, and subway lines, and concrete sleepers emerged.

Shoulder holsters look cool, but are they pragmatic? Find out the pros and cons of using a shoulder firearm holster.

Pro: Capable of Carrying a Larger, Heavier Gun

Holster position is one thing that determines the size of the gun you can carry. A shoulder holster provides ample space for your gun and can handle weightier firearms. You won’t have to worry about the barrel poking you as you might with waistband carry.

This equipment can also make it easier for you to carry heftier firearms more comfortably. By balancing the weight of your ammo and firearm across your upper body, the holster can relieve pressure from your lower back.

Con: Can Be More Difficult To Conceal Than Waistband Carry

One potential negative of a shoulder holster is that it can be more difficult to conceal than waistband carry. Like with all concealment considerations, it depends on your circumstances.

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In cool or cold weather, your jacket can easily conceal the holster. Just ensure the gun doesn’t become visible when you move, such as when you raise your arm.

Pro: Excellent Carry Position When You’re Seated

Another reason to use a shoulder holster is that it’s an excellent carry position if you’re drawing while seated. It’s a great carry holster position in other circumstances too, but if you spend a lot of your time seated, you know how challenging it can be to find the right holster.

When you’re seated, carrying on the waistband can be uncomfortable, and it’s challenging to draw your gun at all, much less conspicuously. And while ankle carry can help, ankle holsters are generally suitable for smaller guns and keep them far from your hands at most times.

Con: Trickier Draw

Every type of holster requires you to train yourself to learn how to draw efficiently and safely. With a shoulder firearm holster, you must practice regularly to make sure you can always draw safely.

Because of the location of the holster, you can easily end up pointing the muzzle at bystanders. Sweeping is why most gun ranges prohibit live-fire practice with a shoulder holster. You’ll likely have to practice drawing your unloaded firearm at home.

Pro: Carry Gun and Ammo in One System

Finally, a shoulder rig makes it more convenient for you to carry your gun and ammo together. The convenience factor can save time when you put on your carry equipment. This factor can increase the regularity of carrying a firearm for some people.

If, after reading the pros and cons of using a shoulder firearm holster, you decide to get one for yourself, Elite Survival Systems has you covered. We carry a high-quality selection of nylon concealed carry holsters, including shoulder holsters.

The double-sided harness includes a double magazine pouch, whereas the single-sided harness is perfect for carrying the firearm alone. Shop with us today for your shoulder holster.

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