Production method of high-homogeneity chromium-nickel austenite stainless steel optical spectrum calibration example

A technology for austenitic stainless steel and calibration samples, which is applied in the direction of material analysis, measuring devices, instruments, etc. by optical means, can solve the problems of coarse and uneven grains, unclear targets, irregular sizes, etc., and reduce the cost of expensive metals. Consumption, huge economic benefits, uniform and consistent results
CN100585380CInactive Publication Date: 2010-01-27BAOSHAN IRON & STEEL CO LTD
4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BAOSHAN IRON & STEEL CO LTD
Publication Date
2010-01-27
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention discloses a method for preparing the high-homogeneity chromium-nickel austenite stainless steel optical spectrum correcting sample in order to provide a reliable optical spectrum correcting sample. The method comprises the following steps: 1) correcting the component of the sample to the following mass percentage: C<=0.20, Si<=1.0, Mn<=2.0, P<=0.035, S<=0.030, Cr 16-24, Ni 6-14, and the rest is Fe; 2) smelting and casting to steel ingot with the components; 3) smithing with the staring temperature: 1100 DEG C-1150 DEG C, and the finishing temperature: 900 DEG C-950 DEG C; 4) roller milling with staring temperature: 1100 DEG C-1150 DEG C, and the finishing temperature: 900 DEG C-950 DEG C; and 5) heat treating for solution temperature 1000 DEG C-1050 DEG C and temperature preserving time 40-50min, and at last water cooling with immersion type. The invention corrects the homogeneous austenite structure with grain fineness number larger than 7 and residual ferrite dispersed arranged in the sample block, satisfies the request of the spectrum analysis and leads to that the spectrometry obtains the best analyzing precision.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of component control and analysis in the steelmaking process, in particular to the component control and analysis technology in the chromium-nickel austenitic stainless steel process. Background technique

[0002] Austenitic stainless steel is the most important steel in stainless steel, and its production and usage account for about 70% of the total output and usage of stainless steel. According to the alloying method adopted to maintain the alloy austenite matrix, austenitic stainless steel can be divided into two series: chromium-nickel stainless steel and chromium-manganese stainless steel. Among them, the main chemical composition range of commonly used chromium-nickel austenitic stainless steel is shown in Table 1:

[0003] Table 1 Commonly used chromium-nickel austenitic stainless steel chemical composition range, wt%

[0004] the element C Si mn P S Cr 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