2017年1月23日星期一

On Die Casting Toolings





Dies, or die casting tooling, are made of alloy tool steels in at least two sections, the fixed die half, or cover half, and the ejector die half, to permit removal of castings. Modern dies also may have moveable slides, cores or other sections to produce holes, threads and other desired shapes in the welding. Sprue holes in the fixed die half allow molten metal to enter the die and fill the cavity. The ejector half usually contains the runners (passageways) and gates (inlets) that route molten metal to the cavity. Dies also include locking pins to secure the two halves, ejector pins to help remove the cast part, and openings for coolant and lubricant.

When the die casting machine closes, the two die halves are locked and held together by the machine’s hydraulic pressure. The surface where the ejector and fixed halves of the die meet and lock is referred to as the "die parting line." The total projected surface area of the part being cast, measured at the die parting line, and the pressure required of the machine to inject metal into the die cavity governs the clamping force of the machine.


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How to choose the car cover?





In the end the car cover product is useful, how to choose a suitable car cover? This is a lot of friends in the face of a car car clothing a question.

Here for everyone to solve these two problems.

Any commodity has its pure value, of course, car clothing is no exception. Car garment belongs to automobile maintenance supplies, in early twenty-first Century, the domestic auto industry began to develop rapidly, and vehicle maintenance supplies by 2010 to the golden period of development, car garment has been a very vague concept to show people in the country thinking, in foreign car garment has decades of development the garment industry is quite mature,

Here I specifically analyze the role of a car to get off:

1: can play a good role in preventing dust. As his car in the garage, if a good environment can also, if the environment is poor, so you will see your car will be above a layer of dust when driving, so it will inevitably have to go to the car wash clean, if his love to wear "clothes", the go to the car wash shop will reduce a lot of times.

2: you can play a good role in sun rain and snow prevention. If you put your car on the outside, sunny fortunately, encountered snow, will give the car cover a layer of snow. Now the snow contains large amounts of acidic substances, and help on the surface of the vehicle, will corrode the automobile paint, a long time will cause the body to lose luster, but also reduce the service life of the vehicle.

3: can play a role in preventing ultraviolet. The car on the outside of the sun, if the cover on the car, you can prevent ultraviolet light on the car paint. Trim. Tire damage, thereby greatly increasing the service life of the car.

4: can prevent accidental scratches on the car. The car on the outside, there will be people from the side after, if the bad guys, let his car destroyed, the car will surely complain distressed clothes. Cover the clothes can let those who can not start.

5: maintenance engine.

To start the winter cold, the main engine is out of the question, the engine is not just car "heart", or "stomach", the car it digested gasoline and air, any one of which "digest" part of the problem, may lead to a car difficult phenomenon, this is winter car engine drag due to the large, experts recommend the use of cotton and car garment. Now many varieties of car clothing market in china. Choose car clothing as the selection of clothes, not only the price to be appropriate, the quality is equally important, how to choose clothes;

1: size to fit. Sewing is not suitable in the body when the wind blows, slack, because car coat doesn't fit, will the wind in the body and swing, if is inferior sewing sewing fabric without a wet wipe, sewing is indeed very likely to scratch the surface of the car with the wind.

2: sewing material: in the market many clothing quality, divided into tens of dollars to hundreds, or even thousands of yuan a range, generally recommended in the choice of clothing when less than one hundred yuan a car coat suggest that you used with caution. The sewing appearance is really good, is simply not what good material, suggest you use some high-grade, nano PU material, Larkin, printing, sewing car cover.

3: brand choice. Suggest your car owners to use some good material brand clothing. Brand garment fabric from the choice of material, workmanship, quality to the function, than the cheaper car clothing good, car clothing must go through water treatment, waterproof, fireproof effect must be better, and that single car clothing, soft texture, so as to ensure that there will be no damage to the car what.
HUILI INDUSTRIAL LTD is a specialized manufacture and exporter for auto accessories,covering full line of car sun (snow) shades,car seat cushions,car mat and car covers product.

More information,please click:http://www.huiliauto.com

Email:sales@huiliauto.net
Ms Cathy Tel: (+86) 156 0676 8582
Mr Carlos Tel: (+86) 139 6396 9950
AddS: TANTOU SHANGZHAI INDUSTRY AREA,TIANTAI,ZHEJIANG,CHINA


2017年1月22日星期日

What is Molecular Sieve?How to use molecular sieve?





Principle & Application:
A molecular sieve is a material with very small holes of precise and uniform size. These holes are small enough to block large molecular while allowing small molecular to pass. Molecular sieve has a very wide range of applications, can be used as a efficient desiccant, selective adsorbent, catalyst, ion exchange, etc., mainly used in automobile, building glass, medicine, paint, packaging and other fields.
Type:
3A, 4A, 5A, 13X molecular sieve, Insulating glass molecular sieve, Air separation special molecular sieve etc.
Regeneration:
1.       Methods for regeneration of molecular sieve include pressure change (as in oxygen concentrators), heating and purging with a carrier gas (as when used in ethanol dehydration), or heating under high vacuum.
2.       Regeneration temperatures range from 175℃to 315℃depending on molecular sieve type. In contrast, silica gel can be regenerated by heating it in a regular oven to 120℃(250℉) for two hours.
3.       However, some types of silica gel will “pop” when exposed to enough water. This is caused by breakage of the silica gel spheres when contacting the water.

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