Measuring method of solid-solution boron content in steel

A determination method and technology of boron content, applied in the field of analytical chemistry, can solve the problems of large error of subtraction method and uneven distribution of inclusions

Inactive Publication Date: 2013-02-13
INNER MONGOLIA BAOTOU STEEL UNION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, solid solution boron in steel is obtained by subtraction method (total boron - compound boro

Method used

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  • Measuring method of solid-solution boron content in steel
  • Measuring method of solid-solution boron content in steel
  • Measuring method of solid-solution boron content in steel

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0044] Example 1

[0045] The sample is made into a cylindrical shape with a diameter of 8 mm and a length of 80 mm, and a groove with a depth of 2 mm is dug at a position 4 mm away from the top of the sample. The observation shows that there are no holes and no cracks.

[0046] The BT100H steel 1 # The sample was soaked in a measuring cup containing 25mL of water and ρ1.19g / mL of 25mL of hydrochloric acid for 30min, taken out, washed, and dried; accurately weighed the steel sample weight 88.4052g, used the weighed steel sample as the anode, stainless steel cylinder For the cathode, put the glass beaker containing the prepared electrolyte into the electrolytic cell, the electrolysis current is 0.5A, at 1 ℃, electrolyze for 90min, remove it, put it into a 150mL quartz beaker for ultrasonic vibration sampling, wash the steel sample with water, Rinse with ethanol, dry and weigh 86.9012g. Take out the glass beaker from the electrolytic cell, stir the electrolyte solution after e...

Example Embodiment

[0055] Example 2

[0056] The BT100H steel 2 # The sample was made into a column with a diameter of 8 mm and a length of 80 mm, and a groove with a depth of 2 mm was dug at 4 mm from the top.

[0057] Soak the BT100H steel sample in a measuring cup containing 25 mL of water and 25 mL of hydrochloric acid of ρ1.19 g / mL for 30 min, take it out, wash it, and dry it; accurately weigh 90.3174 g of the steel sample, and use the weighed steel sample as the anode , the stainless steel cylinder is the cathode, put the glass beaker containing the prepared electrolyte into the electrolysis cell, the electrolysis current is 0.4A, at 3 ℃, electrolyze for 60min, remove it, put it into a 150mL quartz beaker for ultrasonic vibration sampling, and use water for the steel sample Washed, rinsed with ethanol, dried and weighed 89.2947g. Take out the glass beaker from the electrolytic cell, stir the electrolyte solution after electrolysis of the sample with a glass rod, pipette 10mL of the elect...

Example Embodiment

[0061] Example 3

[0062] Will Q 960 Steel 1 # The sample is made into a column with a diameter of 6 mm and a length of 80 mm, and a groove with a depth of 2 mm is dug at 4 mm from the top. The observation shows that there are no holes and no cracks.

[0063] Soak the Q 960 steel sample in a measuring cup containing 25 mL of water and 25 mL of ρ1.19 g / mL hydrochloric acid for 35 minutes, take it out, wash it, and dry it; accurately weigh 77.7851 g of the steel sample, and take the weighed steel sample as The anode, the stainless steel cylinder is the cathode, the glass beaker containing the prepared electrolyte is put into the electrolysis cell, the electrolysis current is 0.5A, and the electrolysis is carried out at 5°C for 75 minutes, then removed, and placed in a 150mL quartz beaker for ultrasonic vibration sampling, the steel sample Wash with water, rinse with ethanol, dry and weigh 76.5833g. Take out the glass beaker from the electrolytic cell, stir the electrolyte solu...

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Abstract

The invention relates to a measuring method of solid-solution boron content in steel, and belongs to the technical field of analytical chemistry. The method comprises the steps of: using a constant current electrolysis method to extract solid-solution boron at low temperature; transferring electrolyte with a certain volume, and diluting the electrolyte to be in a ruled volume; using an inductively coupled plasma source mass spectrometer to measure the solid-solution boron; and using a matching method to eliminate the influence of the components of the electrolyte on the measurement of the inductively coupled plasma source mass spectrometer. The measuring method has the advantage that the solid-solution boron content in the steel can be accurately measured.

Description

1. Technical field [0001] The invention belongs to the technical field of analytical chemistry and relates to a method for determining the content of solid solution boron in steel. 2. Background technology [0002] Boron is an important alloying element in steel. Boron mainly exists in the form of solid solution, carbide and nitride in steel. Different forms have different effects on the properties of steel. Especially under various heat treatment systems, the content of solid solution boron in steel is different, which has a great influence on the performance of steel, so it is very important to accurately determine its content. At present, solid solution boron in steel is obtained by subtraction method (total boron-compound boron). Due to the uneven distribution of boron inclusions in steel, the error of subtraction method is large. 3. Contents of the invention [0003] The purpose of the present invention is to disclose a method for measuring the content of solid-solut...

Claims

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Application Information

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IPC IPC(8): G01N27/64
Inventor 丁美英石林田永生刘淼
Owner INNER MONGOLIA BAOTOU STEEL UNION
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