Positioning angle ruler

How to use the Positioning angle ruler:

1.Positioning squares are generally used to inspect measuring tools;Level 1 is used to inspect workpieces;Level 2 is used to inspect general workpieces.

2.Before use,check whether the working surface and edges are bruised.The left and right sides of the long side of the square and the top and bottom sides of the short side are the workpiece surfaces(i.e.internal and external right angles).Wipe the working surface of the ruler and the working surface to be inspected clean.

3.When using,place the Positioning angle ruler against the working surface of the workpiece to be measured,and use the light gap method to identify whether the angle of the workpiece is correct.Pay attention to handling,leaning and placing gently to prevent bending and deformation.

4.In order to obtain the measurement result,the Positioning angle ruler can be turned over 180 degrees and measured again.The arithmetic mean of the two readings is taken as the measurement result,and the deviation of the square itself can be used.

Classification:

Positioning squares can be divided into cast iron Positioning angle rulers,magnesium aluminum Positioning angle rulers and granite Positioning angle rulers according to materials.

Cast iron Positioning angle ruler

Made of stone that is mechanically processed and finely ground by hand.Black gloss,structure,uniform texture,good stability,high strength,can be maintained under heavy load and normal temperature,and has the advantages of no rust,no magnetization,no deformation,etc.Used for detection,measurement,marking,equipment installation,and industrial engineering construction.The cast iron ruler is made according to the standard and is made of HT250 material.The working surface adopts scraping or grinding process.It is used to measure the straightness and flatness of the workpiece and equipment installation.The operating temperature is(20±5℃).

Granite Positioning angle ruler

The granite Positioning angle ruler is made of"Jinan Qing"stone through mechanical processing and manual fine grinding.Black gloss,structure,uniform texture,good stability,high strength,can be maintained under heavy load and normal temperature,and has the advantages of no rust,no magnetization,no deformation,etc.Used for detection,measurement,marking,equipment installation,and industrial engineering construction.

Magnesium aluminum Positioning angle ruler

Magnesium-aluminum Positioning angle rulers are also called magnesium-aluminum alloy Positioning angle rulers.They are light in weight and easy to carry.They do not allow magnesium-aluminum Positioning angle rulers to deform easily and have a yield point higher than that of ordinary steel,cast iron,etc.Refers to the measuring instrument that the measuring surface and the base surface are perpendicular to each other and used to check right angles,verticality and parallelism.It is also called a bent ruler,a back ruler,and a 90-degree square.It has a simple structure and is easy to use.It is one of the commonly used measuring instruments in equipment installation,adjustment,marking and platform measurement.