News

Home > News > Content
Door Closer Impact Resistance
Sep 29, 2017

Door Closer Impact resistance

A good performance of the door closet in addition to a good design structure, but also need to cooperate with advanced production technology to achieve, this time we want to share with you is the main body of the production of several major processes and their characteristics 

Aluminum extrusion

Aluminum extrusion process principle is to aluminum alloy heated to 400 ℃ ~ 550 ℃ between, so that it can be molded state, and then use the extruder oil pressure squeeze material to squeeze the mold to reach the The need for the appearance of this process requires a lower cost of the mold, the production cycle is fast, high material density, if the appropriate heat treatment can achieve a very good strength, hardness and impact resistance.

A good performance of the door closet in addition to a good design structure, but also need to cooperate with advanced production technology to achieve, this time we want to share with you is the main body of the production of several major processes and their characteristics

Aluminum extrusion process principle is to aluminum alloy heated to 400 ℃ ~ 550 ℃ between, so that it can be molded state, and then use the extruder oil pressure squeeze material to squeeze the mold to reach the The need for the appearance of this process requires a lower cost of the mold, the production cycle is fast, high material density, if the appropriate heat treatment can achieve a very good strength, hardness and impact resistance.

Sand casting

Is the molten metal solution (such as iron, stainless steel), in the appropriate temperature range and conditions, into the sand in the production of mold, the metal liquid cooling and solidification after removal from the mold, the appropriate cleaning and processing, The required castings. This process is suitable for the production of complex shapes of the product.This process requires the mold cost is not high, the product looks more rough, suitable for the production of iron or not steel materials and other products. Door closers are mainly used in commercial, residential and public buildings, According to the use of demand can choose outside the door closers, hidden door closers, mobile door closers and so on. Door closers play a vital role in fire protection. Product stability and good quality can provide security for people's work and life, and greatly reduce the loss of personal property in accidental fire.

The key idea of this design is to achieve the control of the process of closing the door, this design and its application in different environments under the function of the people to provide a great convenience.

The use of the positioner is to assist the door closers to complete the order of the door closed, this seemingly simple function, there is a great practical significance.

In some cases, if the double fans are not well closed, there will be a series of problems such as safety, such as: double fan door in the fire due to personnel access, if you can not guarantee the correct order to close, it will produce gap Problem, and can not meet the requirements of fire and smoke. Therefore, the positioner is used for fire doors.

The positioner has a built-in sequencer to ensure that the passive door takes precedence over the active door. It is operated by a push rod clamping system to ensure proper closing sequence, which is particularly safe and reliable as the system works independently of the door press's hydraulic system.