What is the difference between heating rod semi steel and all steel, and what is the specific differ

The difference between the so-called semi-steel and all-steel, semi-steel refers to the use of steel wire as a reinforcing layer for the tread part, and the carcass is made of nylon or polyester material;

All steel, in addition to the tread, the carcass is also all made of steel wire to bear the force.

The cord arrangement of the radial tire carcass is different from the bias tire, the cord of the radial tire is not crossed with each other, but is close to parallel to the outer tire section, like the earth meridian arrangement, the cord angle is small, generally 0 °, there is no maintenance intersection between the carcass cord, when the tire is in the process of driving, the stress around the crown increases, which will cause circumferential stretching, and the carcass becomes a radial crack. Therefore, the buffer layer of radial tires adopts a close circumferential arrangement of the cord layer, which intersects with the angle of the carcass cord at 90 °, generally 70 ° to 78 °, forming a rigid annular belt that can hardly be stretched, fixing the whole tire, limiting the circumferential deformation of the tire, and this buffer layer bears 60% to 70% of the internal stress of the whole tire, becoming the main stress component of the radial tire, so it is called the belt layer of the radial tire. The main stressed part of the bias tire is not on the buffer layer, and 80% to 90% of its internal stress is borne by the cord layer of the carcass.

It can be seen that the design of the radial tire belt layer is very important, it must have good rigidity, and multi-layer large-angle, high-strength and non-tensile fiber materials can be used, such as steel wire or aramid fiber.

All-steel radial tires, referred to as all-steel radial tires, refer to tires with steel cord cloth for the carcass and belt. (There is only one layer of wire cord).

Semi-steel wire radial tires are referred to as semi-steel radial tires: refers to tires with fiber materials for the carcass and steel cord for the belt. (only 2-3 layers of fiber cord layers).

The structure of the belt layer of all-steel tires and the buffer layer of semi-steel tires is also different.

Semi-steel refers to the use of steel wire as a reinforcing layer for the tread part, and the carcass is made of nylon or polyester material; All steel, in addition to the tread, the carcass is also all made of steel wire to bear the force. Radial tires are relative to bias tires.

The heating sheet on the vacuum packaging machine should be a high-resistance sheet, which will heat up after being energized, unlike ordinary stainless steel, the installation of ordinary stainless steel is equivalent to short-circuiting the live wire of alternating current with the neutral line, which will definitely burn the fuse or trip.

1) The heating sheet is generally made of iron, chromium, aluminum, nickel-chromium, nickel-chromium-iron and other materials, and has a certain resistance value.

2) Ordinary stainless steel is a non-resistive material, so if you install ordinary stainless steel, it is equivalent to short-circuiting the electricity, and it will definitely burn the insurance.

3) It is recommended that you go to the hardware and electrical material store to buy a special heating sheet.

50 and 100 are the same, except that 100 water heats up faster, 50 slower, and the electricity is the same. 40 cylinders of 50 are enough, and the disinfection of potassium permanganate water is light red.

Calculated by the height of the water body 40 Your fish tank has 40 liters of water

Based on our experience with 2 watts of heating rods per litre of water, your fish tank needs to be thermostat 100 W (I may have heard of 80W heating rods).

If you want to know other parameters, you can find a fish tank calculator and calculate them all

Whatever, this is as good as my Xilong miscellaneous brand, but the temperature is not so accurate, domestic products are like this, and you can buy foreign goods if you have money.

It is recommended to use the "Supreme" anti-riot glass rod between 30 and 40 yuan, which is very safe, and the non-riot-proof ones are generally only 10 yuan like Garbo's, and sometimes they will burst or fail.

Both all-steel tires and semi-steel tires are radial structures, and the middle is represented by r, for example, nylon wire tires are biased structures, and the middle is represented by -, for example. All-steel and half-steel are not visible from the specifications.

Cars and light truck tires only have semi-steel tires, and truck tires only have all-steel and bias line tires.

Car tires now basically have inner tubes, so things like the like must be truck tires, truck vacuum tires are generally inch steel rims, cars are generally 13-21 inches (individual supercar customized oversized sizes are not listed), such as 275 is a truck tire, 275 35R20 is a sedan tire, Pirelli can produce 295 25R28 is also a sedan tire.

Engineering tires generally refer to rim sizes of 24 inches and above, such as truck tires, which are engineering tires. Up to 59 80r63

Forklift tires are generally considered engineering tires, but they are special and have a small rim size.

There are a number of factors that go into this:

1. The contact resistance of the power plug is not good, which leads to the heating of the wire;

2. The power supply voltage is unstable, resulting in a large current, resulting in the heating of the wire;

3. Lack of air circulation, humidity and other reasons can also lead to wire heating.

See if there is any problem with the voltage and resistance.

Is it that the plug is loose and the contact is not good?