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常见问题

氮气弹簧

搜索下面找到常见问题的答案 关于氮气弹簧普遍的问题

最大的操作速度是多少?
最大的操作压力是多少?氮气弹簧适合的工作温度是多少?

使用以下的彩页(Bulletin)来参照氮气弹簧最大的操作速度、压力以及工作温度:

氮气弹簧的寿命是多久?

DADCO warrants its products to be free from defects in workmanship or materials for a period of one year from date of manufacture. Many of our nitrogen gas springs are backed in writing by the exclusive 1 year/1 Million Strokes Gold Guarantee. DADCO offers a 2 year/2 million strokes Select Guarantee on the L Series (90.3) nitrogen gas springs. Contact DADCO for full warranty details.

如何能测量氮气弹簧的力量?

使用以下的测压仪与测试台或手板压机一起:

在冲压过程中,如何减少垫的反弹力?

组装和安装 替换和维修

如何用氮气弹簧来替换线型弹簧?

1. Determine force requirements The first step in retrofitting an existing die for nitrogen use is to calculate the force requirement. If you know the force required to complete your operation, simply use this number when selecting the gas springs. If you do not know the total force required in your application, you can calculate the force provided by the coil springs in your die. You must determine if the force required to do the operation is the initial force (at preload) or the final force (at full travel). Once you determine this, you can calculate the total force requirement. The most common method of finding coil spring force is to reference the manufacturer’s force chart. To use the chart you must know the coil spring size, color, preload, and the distance it travels in the die. A load cell can also be used to determine coil spring force. Once you have found the individual force of the coil springs, multiply it by the total number of coil springs in the die to calculate the total force requirement. Example: Ten .75″(19 mm) x 5″ (127 mm) diameter coil springs each provide 80 lbs. (.3 kN) of initial force when preloaded .75″ (19 mm). Total Initial Force = 80 lbs. (.36 kN) x 10 = 800 lbs. (3.6 kN) of force.

2. Calculate gas spring quantity First, you should match the diameter of the gas spring to the diameter of the coil spring. Gas springs are available in all of the popular coil spring sizes, from .5″ (12 mm) to 2″ (51 mm) in diameter. To determine how many gas springs you will need, divide the total force requirement by the highest force available at that diameter. In most cases fewer gas springs are required to meet force requirements. Keep in mind, however, that the force must be distributed evenly on the pressure pad. You may need to use more gas springs of a lower force model to balance pressure in the die. Example: A .75″ (19mm) diameter gas spring is available in a 200 lbs. (.9 kN) force model. Divide total force required by gas spring force to determine gas spring quantity. Quantity = 800 lbs. (3.6 kN) ÷ 200 lbs. (.9 kN) = .4 If necessary to balance pressure in your application, you can choose a lower force model and increase the number of gas springs.

3. Select gas spring stroke length The final factor to consider when selecting the gas spring is the stroke length. To choose the right gas spring stroke length, first determine the distance the coil spring travels in the die. Add a minimum of 10 percent to the coil spring travel and choose the gas spring stroke length that is equal to or greater than this number. Example: The coil spring measures 5″ (127 mm) free length, is preloaded .75″ (19 mm) and is traveled .75″ (19 mm) in the die. Add 10 percent to coil spring travel to determine minimum gas spring stroke length. Minimum stroke length = .75″ (19 mm) + (.75″ (19 mm) x 10%) = .825″ (21 mm). Once you have determined the minimum gas spring stroke length, you can then select the particular stroke length that is best suited to your space requirements. For example, if your application requires that you preload the gas spring, select a stroke length that is greater than the minimum length to allow for preload. When possible, select the stroke length so that the OAL of the gas spring is as close as possible to OAL of the preloaded coil spring. Example: The coil spring is preloaded .75″ (19 mm) to meet the force requirements. Its OAL at preload is 4.25″ (108 mm). In this example you could select the gas spring with a .98″ (25 mm) stroke. This spring would have a corresponding OAL of 3.62″ (92 mm). Alternatively, you may select a longer stroke and preload the gas spring to meet your space constraints. In our example, a spring with a stroke length of 1.5″ (38 mm) and an OAL of 4.65 (118 mm) could be selected and preloaded .40″ (10 mm).

4. Install the gas spring In most applications the nitrogen gas spring can be installed easily in the same cored pocket used for the coil spring. Simply ensure that the bottom of the pocket is flat and that the sides of the hole are square to the pressure pad. The pocket depth should be a minimum of 50 percent of the length of the gas spring can or 1.25″ (32mm) whichever is greater. The pressure pad should have a smooth area for the gas spring rod to contact and should remain in contact with the rod throughout the stroke. In some applications, you can take advantage of gas spring mounting options, such as attachable flange mounts, tapped hole(s) in the base of the cylinder, and threaded body styles. These options offer increased flexibility for using nitrogen gas springs in existing dies. When the size of the gas spring selected does not match the coil spring being replaced, there are simple steps that can be taken before installing the gas spring. Spacers or sleeves may be used in the pocket if the gas spring is smaller than the coil spring, or the gas spring may be flange mounted in the appropriate position. If the existing pocket is too shallow it may be cored deeper, if possible, or the gas spring may be preloaded to meet space requirements. When coring a pocket for gas spring installation, maintain a clearance of .02 to .04 inches (.5 to 1.0 mm) to the diameter of the gas spring. One final concern when installing the gas spring is the use of fluids in the die. Direct contact with certain die lubricants, coolants and cleaners can be harmful to gas springs and should be avoided. Shield gas springs from harmful fluids and provide adequate drainage in gas spring pockets.

如何维修氮气弹簧?

1. Determine the repair kit needed.

2. Follow repair bulletin to repair gas springs.

排管系统

How do I convert a gas spring from self-contained to a linked operation?

 

90.5B2 / 90.10 / 90.8 / UX / UH / UT / SCR Series (G1/8 Port)

Self-Contained to Linked Operation

  1. Always wear safety glasses when maintaining nitrogen gas springs. When exhausting pressure, place the gas spring horizontally with the port up for safety.
  2. Remove port plug 90.505.110 (F1). With the cylinder in the horizontal position, depress the steel valve stem using the appropriate tool (F2). Cover the port with a cloth to absorb discharge.
  3. After all of the gas pressure is exhausted, be sure that the piston rod retracts into the tube manually. If not, try depressing the valve again. If still unsuccessful, stop and contact your DADCO service representative.
  4. Remove the valve using the appropriate tool (F3). Lubricate the threads and O-ring of the port adapter being installed (F4).
  5. Install port adapter in open port (F4). A wide variety of port adapters are available, see DADCO’s 90.10 Series Catalog.linked_operation_image

进行排管系统时,应注意的事项是什么?

能不能把微型氮气弹簧作为排管系统?

能不能把微型氮气弹簧作为排管系统?

监控

How do I monitor, fill, and adjust the multi panel?

充气和排气

如何对氮气弹簧充气?

Never fill a gas spring unless the rod is in the fully extended position. Filling a gas spring with its rod down can result in an improperly seated retaining ring. Thread a T-handle into the rod end and depress the valve stem with the appropriate tool, then pull the rod cartridge assembly up until it is seated firmly against the retaining ring.

  1. Prepare the Filling Port. Self-contained operation: Attach a filler valve to the port. Linked system operation: Pipe all gas springs back to the control panel. Make sure all hoses and fittings are tight. Attach the charging assembly to the control panel.
  2. Set the desired charging pressure on the regulator.
  3. Open the main valve on the nitrogen tank.
  4. Slowly open the shut-off valve and allow each gas spring to reach the desired charging pressure.
  5. After each spring has been charged to the desired pressure, close the shut-off valve and tank shut-off valve. Disconnect the charging assembly from the control panel or gas spring port. The small amount of nitrogen trapped between the shut-off valve and the filler valve will bleed off as you disconnect the fitting.

如何对氮气弹簧充气?

当充气和排气中,有没有一种简单的方法来监测氮气弹簧里的压力?

订购配件

如何定购弹簧的 DADCO Duralene®活塞刮垢器?

如何订购一组DF金属管组件?

如何订购一组软管组件?

工具和配件

Do alternative mounting methods for the DADCO common control panel exist?

如何操作便携式缩管机?

如何识别在模具中安装有高压的氮气弹簧?