How to choose the material of high quality performance for circular waterproof connector

The structure design of circular waterproof connector cannot be separated from the selection of materials. A good designer must be familiar with the performance, price and processing characteristics of all kinds of popular engineering materials. Otherwise, the design structure is not necessarily Z-optimal. Maybe the structure would be completely different with another material. Maybe the performance will be better. It is important to keep costs low, including material costs and processing costs, under the premise of meeting demand.



Materials science is a complex subject, can not be described clearly in a text, this article on the commonly used materials to do a simple list, please do not dislike, I hope you can find some useful things.

Materials are roughly divided into metallic materials and non-metallic materials. Common metals include aluminum, iron, copper, and alloys. Non-metallic abs, silicone, polytetrafluoroethylene, acrylic, pc plus glass fiber, rubber, foam plastics, etc.



Aluminum:

According to the standard of 1 to 8 series aluminum, hundreds of kinds. Commonly used 1a12, 2a12, 6061, a380, 7075 and so on, the price is generally between 22-45 yuan/kg retail. There are 7075 similar aluminum alloy, imported from the United States, about 68 yuan/kg, but its performance is really excellent.

The form of bar material, plate, profile, etc



Iron:

Commonly used iron plate belongs to A3 steel, carbon content about 0.08%, the most common, Q235-A. Other common steels are 20,35,45, with carbon content of 0.2%, 0.35%, and 0.4%, respectively, which gradually increase in hardness and strength, as well as hardness after quenching. Saw blades and files, etc., use T8, 9, and 10 steel, which can be hardened to a very high degree and become brittle.

Stainless steel is commonly used: 0Cr18Ni9(American standard 304), 1Cr18Ni9(American standard 316), 40Cr, 40Cr belongs to the low grade stainless steel.

The spring steel is commonly used at 65Mn, and the sheet thickness is relatively complete. With a certain quenching effect, if better elasticity is needed, it must be quenched again. Generally, quenching at 940 degrees Celsius and then tempering at 400 degrees Celsius can obtain the best comprehensive effect of elasticity and toughness.



W18Cr4V2 is a classic high speed steel brand, is used for ordinary turning tool tool material, in the structural design can be wire cutting or spark machining into super hard tools.

The track material of tracked vehicle is a kind of non-machined manganese boron steel, which is characterized by a very good cold hardening effect.

Steel has casting, forging, profile, sheet material, bar material and other forms.



Copper:

Divided into brass (copper zinc alloy, do valves, etc.), copper (red copper, pure copper, good conduction, soft texture, conducive to sealing), copper (copper nickel alloy, beautiful appearance), bronze (copper tin alloy, and many kinds of bronze), electric discharge copper (dedicated to the electrode of electric discharge processing, generally made into the required shape), the form is generally plate and bar material and casting parts.



Alloy:

Commonly used carbide (yg class for processing cast iron, yt class for processing iron and steel, etc., very many kinds, can be wire cutting car into special tools), zinc and iron alloy (do belt buckle that, low melting point, easy casting), ferrosilicon alloy (used for steelmaking as deoxidizing agent and other alloy additives, transformer core silicon steel is also a ferrosilicon alloy) and so on.



Abs:

Is A mixture of three kinds of A, B, S English beginning of the plastic, there are a variety of formulas, known as engineering plastics, injection molding industry Z is commonly used.



Silica gel:

A type of rubber containing silicon, also known as silicone rubber, used for casting soft parts, a wide variety, most of the soft texture, easy deformation, waterproof characteristics. It's usually heated.



Teflon:

Commonly known as the king of plastic, touch candle feeling, greasy and slippery surface, the only choice of strong acid environment, can be slightly deformed to seal, difficult to bond, good strength, beautiful appearance.



Acrylic:

Is a pc mixture, old called glass steel, has a good variety of characteristics, can be completely transparent.



pc plus glass fiber:

It is one of the most powerful materials. The greater the proportion of glass fiber, the greater the hardness and the more brittle it is. Processing surface is easy to burr, the more grinding more. Suitable for injection molding and surface spray painting treatment.



Rubber:

Has good toughness, strength, fatigue resistance characteristics, quite a variety of automobile tire is a kind of rubber.



Foaming plastics:

Commonly known as plastic foam, sponge, etc., with a variety of styles, generally used for packing box padding products filling, light weight, good retention.