Nitrogen potential calculation method and system

A calculation method and a calculation system technology, applied in the analysis of materials, instruments, etc., can solve problems such as the inability to realize the real-time control of nitrogen potential and the inability to accurately and accurately calculate the nitrogen potential value

Active Publication Date: 2021-09-10
QINGDAO FENGDONG HEAT TREATMENT
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of this application provides a nitrogen potential calculation method and system, at least through the present invention to solve the real-time control and Problems such as the inability to accurately and accurately calculate the nitrogen potential value

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nitrogen potential calculation method and system
  • Nitrogen potential calculation method and system
  • Nitrogen potential calculation method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] This embodiment provides a nitrogen potential calculation method. Please refer to figure 1 , figure 1 It is a flowchart of a nitrogen potential calculation method according to an embodiment of the present application. As shown in the figure, the nitrogen potential calculation method includes the following steps:

[0075] Collection step S1: use a measuring instrument to collect the partial pressure value of hydrogen and the amount of gas introduced into the furnace;

[0076] Water vapor partial pressure value calculation step S2: calculate and obtain water vapor partial pressure value according to the hydrogen partial pressure value and the gas flow rate;

[0077] Ammonia partial pressure value calculation step S3: calculate and obtain the ammonia gas partial pressure value according to the water vapor partial pressure value;

[0078] Nitrogen potential calculation step S4: Calculate the nitrogen potential according to the partial pressure of hydrogen and the partial...

Embodiment 2

[0121] Please refer to image 3 , image 3 It is a structural schematic diagram of the nitrogen potential calculation system of the present invention. like image 3 As shown, the invented nitrogen potential calculation system is applicable to the above-mentioned nitrogen potential calculation method, and the nitrogen potential calculation system includes:

[0122] Acquisition unit 51: use a measuring instrument to collect the partial pressure value of hydrogen and the amount of gas introduced into the furnace;

[0123] Water vapor partial pressure value calculation unit 52: calculate and obtain water vapor partial pressure value according to the hydrogen partial pressure value and the gas flow rate;

[0124] Ammonia partial pressure value calculation unit 53: calculate and obtain the ammonia gas partial pressure value according to the water vapor partial pressure value;

[0125] Nitrogen potential calculation unit 54: calculate nitrogen potential according to the hydrogen ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a nitrogen potential calculation method and system. The nitrogen potential calculation method comprises the following steps: an acquisition step: acquiring a hydrogen partial pressure value and the introduction amount of gas introduced into a furnace by using a measuring instrument; a water vapor partial pressure value calculation step: calculating the water vapor partial pressure value according to the hydrogen partial pressure value and the gas introduction amount; an ammonia gas partial pressure value calculation step: calculating according to the water vapor partial pressure value to obtain an ammonia gas partial pressure value; and a nitrogen potential calculation step: calculating the nitrogen potential according to the hydrogen partial pressure value and the ammonia partial pressure value. According to the principle that carbon dioxide reacts with hydrogen in the nitriding atmosphere after being added into the nitriding atmosphere, the accuracy degree of nitrogen potential calculation is influenced, the hydrogen value is compensated and reduced by calculating the hydrogen consumed by the carbon dioxide reaction, and the nitrogen potential value is accurately calculated.

Description

technical field [0001] The present application relates to the technical field of nitrogen potential control, in particular to a method and system for calculating nitrogen potential. Background technique [0002] The nitriding process is widely used in the production of mechanical parts and is an important surface treatment method. The nitriding process can improve the surface hardness, wear resistance, corrosion resistance and fatigue strength of the workpiece; and the lower nitriding temperature (theoretically 400°C-580°C) has little effect on the deformation of the workpiece, and is often used as the final treatment process of the workpiece or The existence of sub-processes plays a vital role in the performance of the workpiece. The quality of nitriding often depends on the nitrogen concentration absorbed by the workpiece surface. Different nitrogen concentrations, different components and contents of alloying elements in the raw materials of parts will cause different n...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityApplications(China)
IPC IPC(8): G01N7/10
CPCG01N7/10
Inventor李丹赵程邢雪徐志斌范祥森安欣
OwnerQINGDAO FENGDONG HEAT TREATMENT