Stamping
Parts:
The processing method for stamping and
forging are plastic processing (or pressure processing), forging stamping blank
collectively. Is hot-rolled and cold-rolled steel sheet and strip. The world of
steel, 60 ~ 70% is the plate, mostly made by stamping products. Automobile
body, chassis, tank, radiator, boiler drum, vessel shell, electric machine,
electric iron core silicon steel sheet are stamping processing. Instruments,
household appliances, bicycles, office machinery, household utensils and other
products, there are a large number of Stamping Parts stamping. Is powered by
conventional or special punching equipment, make sheet metal in the mold
directly affected by the deformation force and deformation, thus A certain
shape, size and performance of the product parts production technology. The
sheet metal, mold and equipment are the three elements of stamping. Temperature
divided by stamping hot stamping and cold stamping. The former is suitable for
high deformation resistance, sheet metal plasticity is poor; the latter was
carried out at room temperature, is commonly used in stamping method the sheet
metal plastic processing. It is (or pressure processing) one of the main
methods, but also forming part of materials engineering. Stamping mold called
stamping die, or die. The die is the material (metal or non-metal) batch
processing into the special tool stamping. Die is of vital importance in the in
the press, did not meet the requirements of the die, it is difficult to carry
out production batch stamping die; no advanced, advanced stamping process can
not be achieved. The stamping process and die, stamping equipment and stamping
materials to constitute three stamping processing Only when they combine with
each other can they get the stamping parts.
WHY
Stamping:
Stamping parts and castings, forgings, a
thin, uniform, light, strong character. Stamping can be produced from other
methods is difficult to manufacture with stiffeners, stamping parts stamping
rib, rolling or burring of the workpiece, to improve its rigidity. Because of
the use of precision molds, workpiece precision, and high repetition accuracy,
specifications, can punch a hole nest, boss. Cold stamping generally no longer
cutting machining, or only a small amount of cutting. The hot stamping
precision and surface state below the cold stamping, but still better than the
casting, forging, machining less.
(1) Stamping processing is of high
production efficiency, convenient operation, easy to realize mechanization and
automation. This is because the stamping dies and stamping equipment rely on to
complete the processing, ordinary press trips per minute up to dozens of times,
high pressure per minute up to hundreds or even thousands of times, and each
press stroke you may get a red piece.
(2) The stamping die ensure the dimension
and shape precision stamping parts, and generally do not damage the surface
quality of stamping, and die life is generally longer, so the stamping quality,
good interchangeability, "as like as two peas" feature.
(3) Stamping can press the processing size
range is large, complex shape parts, such as a small clock stopwatch, large car
rails, covering parts, stamping and material hardening effect of cold
deformation, punching strength and stiffness are higher..
(4) Stamping generally without cutting
scrap generated, material consumption is less, and no other heating equipment,
which is a kind of material saving, energy saving and processing, lower the
cost of stamping parts.
Category:
Stamping is mainly according to the process
of classification, can be divided into separation process and the forming
process of two categories. The separation process also known as blanking, its
purpose is to make the stamping parts along the contour line must be separated
from the sheet, and guarantee the quality of the separation section (Table 1).
The forming process is designed to make sheet metal in broken slab under the
condition of plastic deformation, the workpiece into the required shape and
size. In the actual production, often a variety of integrated process applied
to a workpiece. The blanking, bending, shear, tensile, bulging, spinning,
correction is the main stamping process of several.
Mainly speaking,based on the three
different material,we can make steel stamping farts,copper alloy stamping parts
and aluminium alloy stamping parts.
Stamping Parts Stamping Parts,Steel Stamping,Copper Stamping,Aluminium Stamping VESTA Motoring Ltd , https://www.vesta-industry.com
First, the effect of network cable on the power supply distance The equivalent impedance of Category 5 network cable, which is generally 100 meters, must be less than 12.5Ω, and IEEE802.3af needs to be less than 20Ω.
The PoE power supply distance is closely related to the network cable. The lower the impedance of the network cable is, the farther the transmission distance is. The distance between the PoE power supply and the network cable is a joke! To supply power far enough, the network cable must first buy authentic products.
Second, the IEEE802.3af/at standard requires a PoE power supply voltage. The PoE output voltage range is 44-57V, and the PD power supply voltage range is 36-57V.
2, PoE power supply distance requirements are far, the output voltage must be high.
In short, if the PoE power supply is far away, the cable must meet the standards and the output voltage of the PoE-powered product should be as high as possible within the 44-57V standard.
For example: Fengrun Da PoE switch adopts the output voltage of 48V or 52V, whether it is af standard or at standard, is enough bolt or wireless AP is working properly.
Of course, a healthy network should not only look at the PoE power supply distance that is long enough, but the transmission quality of the network cable must be guaranteed. According to IEEE regulations, transmission over 100 meters does not guarantee transmission quality, but in some cases, such as security cameras, it may exceed 10 meters. Here, Feng Runda teaches you a small trick: It is not too much. The camera's connection rate is manually set to 10M. For a 2 million-pixel camera, the 10M rate is sufficient and a very large chance of solving the problem. 
How to calculate the most suitable distance for PoE power supply
When buying a PoE product, many ask how far it can be transmitted? Feng Runda today answered this question for you, and only for PoE devices that meet the IEEE802.3af/at standard, non-standard ones do not consider. Because of the existence of the IEEE organization, most of the network products conform to the IEEE standards.