JB/T 10045.2-1999 This standard is equivalent to the German standard DIN 2310 B1-1980 "Thermal Cutting Terms and Definitions". This standard is a revision of ZB J59 002.2-88 "Thermal Cutting Terms and Definitions". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard specifies the relevant terms and definitions of incisions involved in the thermal cutting process. This standard is applicable to the terms used in the formulation of standards, preparation of technical documents and technical exchanges in relevant industries. This standard was first issued on August 10, 1988. JB/T 10045.2-1999 Thermal Cutting Terms and Definitions JB/T10045.2-1999 Standard download decompression password: www.bzxz.net

JB/T10045.2—1999
This standard is equivalent to the German standard DIN2310B1—1975 "Thermal cutting terms and definitions". This standard is a revision of ZBJ59002.2--88 "Thermal cutting terms and definitions". Only editorial changes were made during the revision, and the technical content remained unchanged.
This standard replaces ZBJ59002.2-88 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Welding Standardization. The drafting unit of this standard: Harbin Welding Research Institute. The main drafters of this standard: Wen Dehui, Wang Run, Lin Chaoyong. 621
Mechanical Industry Standard of the People's Republic of China
Thermal cutting
Terminology and definitions
Thermal cutting-Terminology and definitions This standard specifies the relevant terms and definitions of the incision involved in the thermal cutting process. This standard is applicable to the terms used in the formulation of standards, the preparation of technical documents and technical exchanges in relevant industries. 2 Definition of the National Interpretation
See Figures 1 to 4 for the definition of the diagram.
1 Cutting Square
Cutting East
Cutting Distance
Cut Length
Cutting Length
Cutting Moment
Cut Upper Edge
Cut Width
Cut Start
Cut End
Vertical Cut
Cutting Surface
Approved by the National Machinery Industry Bureau on June 24, 1999 622
Cutting Surface Angle
Cut Lower Edge
Figure 2 Oblique Cut
JB/T 10045.2--1999
Replaces ZBJ59002.2--88
2000-01-01 implementation
3 Terminology
Vertical cutting surface
Vertical incision
JB/T10045.2-1999
Identification of incision
Figure 3 Straight incision
Vertical curved incision
3.1 Cutting speed
Oblique curved incision
Figure 4 Curved incision
Relative moving speed between cutting torch and workpiece during cutting. 3.2 Kerf width
The distance between the two cutting surfaces caused by the cutting beam at the upper edge of the incision. In the case of melting of the upper edge, it refers to the distance between the two cutting surfaces close to the molten layer.
3.3 Drag
The maximum distance between two points on the same cut line along the cutting direction (see Figure 5). 623
BaselinebzxZ.net
JB/T10045.2—1999
Cutting width
Incision cutting
Cutting square
Figure 5 Drag
3.4 ​​Flatness of cutting surface uevenness of surface The distance between two parallel lines drawn along the inclination direction of the cutting surface through the highest point and the lowest point on the cutting surface of the measured part is the flatness of the cutting surface u (see Figure 6).
Bevel ruler
Right ruler
a) Vertical cutting surface
3.5 Cutting depth
Right ruler
b) Oblique cutting surface
Figure 6 Cutting surface flatness
The distance between the top line of the contour and the bottom line of the contour valley based on the theoretical cutting line on the cutting surface 20mm long along the cutting direction (see Figure 7).
Actual surface
3.6 Upper edge melting degree
Basic agent surface
Figure 7 Cutting depth
The upper edge melting degree r is the dimension that determines the shape of the upper edge of the cut (see Figure 8). 624
3.7 Notch
JB/T 10045.2
—1999
Upper edge melting degree,
Irregular defects in width, depth and shape formed on the cutting surface (see Figure 9), which interrupt the uniform cutting surface. Cutting beam
3.8 Adhering slag
Iron oxide slag attached to the lower edge of the cutting surface after cutting. 3.9 Kerf angle
Figure 9 Notch
Refers to the angle between the theoretical cutting surface and the actual cutting surface (see Figure 10). Contour cutting torch
Upper cut width
Cut angle
Actual cutting surface
Theoretical cutting surface
Figure 10 Kerf angle
Cutting direction
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