Asphalt extension instrument main structure and working principle - Database & Sql Blog Articles

Asphalt extender

Main structure and working principle

The instrument is mainly composed of a mechanical stretching device, a temperature control device and a liquid crystal display.

1.

Mechanical stretching device driven by low speed motor

,

Through the gearbox drive rack and pinion

,

Move it from one end to the other

.

There is also a shifting mechanism on the transmission

,

Available

50 mm

/min

with

10 mm

/min

Two different stretching speeds

.

2.

Temperature control device

(

Compressors, condensers, fans, etc.

)

And heaters, pumps, water tanks, etc.

.

Cycle through the pump

,

Make the water in the sink warm

5-50 ° C

Adjustable thermostat

.

3.

The ductility liquid crystal display can directly display the extension length of three test pieces

,

And can automatically calculate and display the average value of the three specimens

.