What factors should I consider before choosing a lifting column? Shield standard protection lifting column manufacturers summarize the following points and hope to help you.
1. Width of the channel: The width of the channel to be processed determines the number of equipment to be used. Under normal circumstances, the column spacing should be 1 m to 1.3 m. It should not exceed 1.5 m. Different application occasions can control the distance width according to actual needs.
2. Traffic flow: This number is one of the main parameters for selecting the product zui, but the user usually neglects the parameter. Ling first understands the year/month total traffic volume of the installation, and evenly traffic.
3, the use of frequency: should understand the short-term traffic flow during the peak hours of the use of the car.
4, lifting speed: usually care about this parameter.
5, the use of thickness requirements for different applications: according to the use of custom lifting column thickness (6mm / 8mm / 10mm / 12mm can be customized)
6, group control: Is it necessary to drive the lanes in and out of the separation, perhaps grouping up and down by lane, and determine the configuration and selection of all control systems.
7. Rainfall and drainage: Because the demand for the lifting column is buried deep below the ground, it will inevitably bubble in the water. If the application has large rainfall, high probability of heavy rain, poor drainage system, low terrain or shallow groundwater, you must be careful when selecting equipment, because the equipment you choose may be soaked in water for a long time. In addition to doing the basic work of drainage, we must also consider the elements of the structure of the equipment. It is a very dangerous job to directly waterproof water-repellent equipment or use high-voltage equipment in water.
8. Orientation of the device: If the installation is in a geographically remote area, the time of selecting the equipment must be able to think about whether the selected equipment is easy to repair, whether the spare parts are convenient to purchase and so on.
Ok, after reading this article, I believe everyone knows how to choose the lifting column. Remember that all things are worth a penny. Don't choose something that is not suitable for you at a low price. That is really a waste of money! We must combine our own actual situation and choose good quality and cost-effective equipment.
Sand Casting, also known as sand molded casting, is a metal casting process characterized by using sand as Sand casting, The term "sand casting" can also refer to an object produced via the sand casting process. Sand castings are produced in specialized factories called foundries. Over 70% of all metal castings are produced via a sand casting process.
Sand casting is relatively cheap and
sufficiently refractory even for steel foundry use. In addition to the sand, a
suitable bonding agent (usually clay) is mixed or occurs with the sand. The
mixture is moistened, typically with water, but sometimes with other
substances, to develop strength and plasticity of the clay and to make the
aggregate suitable for molding. The sand is typically contained in a system of
frames or mold boxes known as a flask. The mold cavities and gate system are
created by compacting the sand around models, or patterns, or carved directly
into the sand.
There are six steps in this process:
1.Place a pattern in sand to create a mold.
2.Incorporate the pattern and sand in a gating
3.Remove the pattern.
4.Fill the mold cavity with molten metal.
5.Allow the metal to cool.
6.Break away the sand mold and remove the
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