CN112161915A - Method for detecting corrosion resistance of fastener - Google Patents
Method for detecting corrosion resistance of fastener Download PDFInfo
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- CN112161915A CN112161915A CN202011026504.2A CN202011026504A CN112161915A CN 112161915 A CN112161915 A CN 112161915A CN 202011026504 A CN202011026504 A CN 202011026504A CN 112161915 A CN112161915 A CN 112161915A
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- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
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Abstract
The invention discloses a method for detecting the corrosion resistance of a fastener, which relates to the technical field of fastener detection and comprises the following steps: (1) selecting a sample; (2) preparing corrosive liquid; (3) setting a control experiment group; (4) and carrying out corrosion test operation; (5) and identifying the detection result; (6) and analyzing the detection result. According to the method for detecting the corrosion resistance of the fastener, the corrosive liquid in the corrosive liquid preparation process is acidic corrosive liquid, corrosion resistance of a fastener sample is detected by using the corrosion effect of the acidic corrosive liquid, a detection result analysis step is arranged after the detection result is identified, and the corrosion type of the fastener and the corrosion resistance of the fastener under different temperature conditions can be known and mastered by analyzing and evaluating the data of the detection result under the condition of constant humidity, so that the corrosion degree of the fastener under different environmental conditions can be deduced, and the corrosion resistance result of the fastener detected by the detection method is more comprehensive and comprehensive.
Description
Technical Field
The invention relates to the technical field of fastener detection, in particular to a method for detecting the corrosion resistance of a fastener.
Background
A fastener, also known on the market as a standard, is a mechanical element that can mechanically fix or bond two or more elements together. It features various varieties and specifications, different functions and usages, and very high standardization, serialization and universalization degree. The fastener is the most widely used mechanical basic member and has a large demand. The corrosion resistance of the fastener needs to be tested during the production process, and the ability of the metal material to resist the corrosive destructive effects of the surrounding medium is called corrosion resistance.
The existing detection method for the corrosion resistance of the fastener is rough in detection process, cannot perform contrast detection on a fastener sample, causes detection data to be one-sided, is low in reliability, and cannot judge the corrosion resistance of the fastener sample under the corrosion conditions of corrosive liquids with different concentrations and the corrosion conditions of different temperatures.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for detecting the corrosion resistance of a fastener, and solves the problems that the detection process of the conventional method for detecting the corrosion resistance of the fastener in the background art is rough, the comparison detection of a fastener sample cannot be carried out, the detected data is relatively smooth, the reliability is low, and the corrosion resistance of the fastener sample cannot be judged under the corrosion conditions of corrosive liquids with different concentrations and the corrosion conditions at different temperatures.
In order to achieve the above purpose, the invention is realized by the following technical scheme, and the method for detecting the corrosion resistance of the fastener comprises the following steps:
(1) selecting a sample;
(2) preparing corrosive liquid;
(3) setting a control experiment group;
(4) and carrying out corrosion test operation;
(5) and identifying the detection result;
(6) and analyzing the detection result.
Optionally, the method for detecting the corrosion resistance of the fastener comprises the following specific steps:
(1) sample selection
Selecting a plurality of identical standard fasteners as samples, testing initial information of the standard fasteners, namely the size, weight, compression resistance and the like of the standard fasteners, and simultaneously recording data;
(2) preparing the corrosive liquid
Configuring corrosive medium solution, configuring the corrosive medium solution into three different concentrations, and sequentially setting the corrosive medium solution into three experimental groups of A group corrosive liquid, B group corrosive liquid and C group corrosive liquid, wherein each group is set into three comparison units, the A group can be divided into A1, A2 and A3, the B group can be divided into B1, B2 and B3, and the C group can be divided into C1, C2 and C3;
(3) and setting a control experiment group
Respectively placing fastener samples into A-group corrosive liquid, B-group corrosive liquid and C-group corrosive liquid with different concentrations to enable the humidity of the fastener samples to be constant, then sealing containers of three groups of experimental groups, setting A1, B1 and C1 as an S1 control experimental group, setting A2, B2 and C2 as an S2 control experimental group, and setting A3, B3 and C3 as an S3 control experimental group;
(4) corrosion test operation
Sealing the three groups of control experiment groups, putting the three groups of control experiment groups into a control experiment box, setting the S1 control experiment group, the S2 control experiment group and the S3 control experiment group to different temperatures respectively, placing the control experiment groups for a certain period of time, periodically taking out containers of the S1 control experiment group, the S2 control experiment group and the S3 control experiment group, and periodically taking out a fastener sample in the container to identify the corrosion condition of the fastener sample;
(5) and identifying the detection result
Observing and recording the change of the surface appearance, the area size and the change degree of the fastener sample, determining the corrosion performance of the fastener sample according to the oxidation, color change, corrosion degree and quality loss of the fastener sample, simultaneously recording the test data of an S1 control experiment group, an S2 control experiment group and an S3 control experiment group, and photographing and storing;
(6) and analyzing the detection result
Through analysis and evaluation of data of detection results, under the condition that the humidity is constant, the corrosion type of the fastener and the corrosion resistance of the fastener under different temperature conditions are known and grasped, and the corrosion degree of the fastener under different environmental conditions is deduced.
Optionally, the fastener sample in the step of sample selection can be selected to be a bolt or a nut.
Optionally, the corrosive liquid in the corrosive liquid preparation process in the second step is an acidic corrosive liquid.
Optionally, the control test box in the four-step corrosion test operation process is used for controlling three comparison units A1, B1 and C1 in an experiment group of S1, and the design temperature is 48-50 ℃.
Optionally, the control box in the four-step corrosion test operation process is used for controlling three comparison units A2, B2 and C2 in an experiment group of S2, and the design temperature is 18-20 ℃.
Optionally, the control test chamber in the four-step corrosion test operation process is used for comparing three comparison units A3, B3 and C3 in an S3 control test group, and the design temperature is-8 to-10 ℃.
The invention provides a method for detecting the corrosion resistance of a fastener, which has the following beneficial effects: the corrosion resistance detection method of the fastener comprises the steps that a corrosive liquid in the corrosive liquid preparation process is an acidic corrosive liquid, corrosion resistance detection is carried out on a fastener sample by utilizing the corrosion effect of the acidic corrosive liquid, three experimental groups of group A corrosive liquid, group B corrosive liquid and group C corrosive liquid are arranged, each group is provided with three comparison units, the group A can be divided into A1, A2 and A3, the group B can be divided into B1, B2 and B3, the group C can be divided into C1, C2 and C3, the comprehensiveness of detection data can be improved, in the corrosion test operation process, the S1 comparison experimental group, the S2 comparison experimental group and the S3 comparison experimental group adopt the same temperature and humidity to detect the corrosion conditions of the corrosive liquids with different concentrations, the S1 comparison experimental group, the S2 comparison experimental group and the S3 comparison experimental group respectively adopt different comparison temperatures, and the corrosion conditions of the corrosive liquids with different concentrations and the corrosion resistance of the fastener sample under the corrosion conditions with different temperatures can be conveniently judged on the basis And the corrosion degree of the fastener under different environmental conditions can be inferred by analyzing and evaluating the data of the detection result and knowing and mastering the corrosion type of the fastener and the corrosion resistance of the fastener under different temperature conditions under the condition of constant humidity, so that the corrosion resistance result of the fastener detected by the detection method is more comprehensive and comprehensive.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
A method for detecting the corrosion resistance of a fastener comprises the following steps:
(1) selecting a sample;
(2) preparing corrosive liquid;
(3) setting a control experiment group;
(4) and carrying out corrosion test operation;
(5) and identifying the detection result;
(6) and analyzing the detection result.
The method for detecting the corrosion resistance of the fastener comprises the following specific steps:
(1) sample selection
Selecting a plurality of identical standard fasteners as samples, testing initial information of the standard fasteners, namely the size, weight, compression resistance and the like of the standard fasteners, and simultaneously recording data;
the fastener sample in the sample selection process can be selected to be a bolt or a nut, the bolt or the nut are all metal fasteners, and the detection method can be used;
(2) preparing the corrosive liquid
Configuring corrosive medium solution, configuring the corrosive medium solution into three different concentrations, and sequentially setting the corrosive medium solution into three experimental groups of A group corrosive liquid, B group corrosive liquid and C group corrosive liquid, wherein each group is set into three comparison units, the A group can be divided into A1, A2 and A3, the B group can be divided into B1, B2 and B3, and the C group can be divided into C1, C2 and C3;
the corrosive liquid in the corrosive liquid preparation process is acidic corrosive liquid, and the acidic corrosive liquid can corrode the metal fastener so as to facilitate corrosion performance detection;
(3) and setting a control experiment group
Respectively placing fastener samples into A-group corrosive liquid, B-group corrosive liquid and C-group corrosive liquid with different concentrations to enable the humidity of the fastener samples to be constant, then sealing containers of three groups of experimental groups, setting A1, B1 and C1 as an S1 control experimental group, setting A2, B2 and C2 as an S2 control experimental group, and setting A3, B3 and C3 as an S3 control experimental group;
(4) corrosion test operation
Sealing the three groups of control experiment groups, putting the three groups of control experiment groups into a control experiment box, setting the S1 control experiment group, the S2 control experiment group and the S3 control experiment group to different temperatures respectively, placing the control experiment groups for a certain period of time, periodically taking out containers of the S1 control experiment group, the S2 control experiment group and the S3 control experiment group, and periodically taking out a fastener sample in the container to identify the corrosion condition of the fastener sample;
in the corrosion test operation process, a control test box is arranged in three comparison units A1, B1 and C1 of an S1 control test group, and the design temperature is 48-50 ℃; in the corrosion test operation process, a control test box is arranged in three comparison units A2, B2 and C2 of an S2 control test group, and the design temperature is 18-20 ℃; in the corrosion test operation process, a control test box is used for controlling three comparison units A3, B3 and C3 of an experimental group at S3, the design temperature is-8-10 ℃, and the corrosion conditions of corrosion solutions with different concentrations are detected by adopting the same temperature and humidity;
(5) and identifying the detection result
Observing and recording the change of the surface appearance, the area size and the change degree of the fastener sample, determining the corrosion performance of the fastener sample according to the oxidation, color change, corrosion degree and quality loss of the fastener sample, simultaneously recording the test data of an S1 control experiment group, an S2 control experiment group and an S3 control experiment group, and photographing and storing;
(6) and analyzing the detection result
Through analysis and evaluation of data of detection results, under the condition that the humidity is constant, the corrosion type of the fastener and the corrosion resistance of the fastener under different temperature conditions are known and grasped, and the corrosion degree of the fastener under different environmental conditions is deduced.
In summary, the method for detecting the corrosion resistance of the fastener in use comprises the following specific steps:
(1) and selecting a sample: selecting a plurality of identical standard fasteners as samples, testing initial information of the standard fasteners, namely the size, weight, compression resistance and the like of the standard fasteners, and simultaneously recording data;
(2) preparing a corrosive liquid: configuring corrosive medium solution, configuring the corrosive medium solution into three different concentrations, and sequentially setting the corrosive medium solution into three experimental groups of A group corrosive liquid, B group corrosive liquid and C group corrosive liquid, wherein each group is set into three comparison units, the A group can be divided into A1, A2 and A3, the B group can be divided into B1, B2 and B3, and the C group can be divided into C1, C2 and C3;
(3) and setting a control experiment group: respectively placing fastener samples into A-group corrosive liquid, B-group corrosive liquid and C-group corrosive liquid with different concentrations to enable the humidity of the fastener samples to be constant, then sealing containers of three groups of experimental groups, setting A1, B1 and C1 as an S1 control experimental group, setting A2, B2 and C2 as an S2 control experimental group, and setting A3, B3 and C3 as an S3 control experimental group;
(4) and corrosion test operation: sealing the three groups of control experiment groups, putting the three groups of control experiment groups into a control experiment box, setting the S1 control experiment group, the S2 control experiment group and the S3 control experiment group to different temperatures respectively, placing the control experiment groups for a certain period of time, periodically taking out containers of the S1 control experiment group, the S2 control experiment group and the S3 control experiment group, and periodically taking out a fastener sample in the container to identify the corrosion condition of the fastener sample;
(5) and identifying the detection result: observing and recording the change of the surface appearance, the area size and the change degree of the fastener sample, determining the corrosion performance of the fastener sample according to the oxidation, color change, corrosion degree and quality loss of the fastener sample, simultaneously recording the test data of an S1 control experiment group, an S2 control experiment group and an S3 control experiment group, and photographing and storing;
(6) and analyzing the detection result: through analysis and evaluation of data of detection results, under the condition that the humidity is constant, the corrosion type of the fastener and the corrosion resistance of the fastener under different temperature conditions are known and grasped, and the corrosion degree of the fastener under different environmental conditions is deduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A method for detecting the corrosion resistance of a fastener is characterized by comprising the following steps:
(1) selecting a sample;
(2) preparing corrosive liquid;
(3) setting a control experiment group;
(4) and carrying out corrosion test operation;
(5) and identifying the detection result;
(6) and analyzing the detection result.
2. The method for detecting the corrosion resistance of the fastener is characterized by comprising the following specific steps of:
(1) sample selection
Selecting a plurality of identical standard fasteners as samples, testing initial information of the standard fasteners, namely the size, weight, compression resistance and the like of the standard fasteners, and simultaneously recording data;
(2) preparing the corrosive liquid
Configuring corrosive medium solution, configuring the corrosive medium solution into three different concentrations, and sequentially setting the corrosive medium solution into three experimental groups of A group corrosive liquid, B group corrosive liquid and C group corrosive liquid, wherein each group is set into three comparison units, the A group can be divided into A1, A2 and A3, the B group can be divided into B1, B2 and B3, and the C group can be divided into C1, C2 and C3;
(3) and setting a control experiment group
Respectively placing fastener samples into A-group corrosive liquid, B-group corrosive liquid and C-group corrosive liquid with different concentrations to enable the humidity of the fastener samples to be constant, then sealing containers of three groups of experimental groups, setting A1, B1 and C1 as an S1 control experimental group, setting A2, B2 and C2 as an S2 control experimental group, and setting A3, B3 and C3 as an S3 control experimental group;
(4) corrosion test operation
Sealing the three groups of control experiment groups, putting the three groups of control experiment groups into a control experiment box, setting the S1 control experiment group, the S2 control experiment group and the S3 control experiment group to different temperatures respectively, placing the control experiment groups for a certain period of time, periodically taking out containers of the S1 control experiment group, the S2 control experiment group and the S3 control experiment group, and periodically taking out a fastener sample in the container to identify the corrosion condition of the fastener sample;
(5) and identifying the detection result
Observing and recording the change of the surface appearance, the area size and the change degree of the fastener sample, determining the corrosion performance of the fastener sample according to the oxidation, color change, corrosion degree and quality loss of the fastener sample, simultaneously recording the test data of an S1 control experiment group, an S2 control experiment group and an S3 control experiment group, and photographing and storing;
(6) and analyzing the detection result
Through analysis and evaluation of data of detection results, under the condition that the humidity is constant, the corrosion type of the fastener and the corrosion resistance of the fastener under different temperature conditions are known and grasped, and the corrosion degree of the fastener under different environmental conditions is deduced.
3. The method for detecting the corrosion resistance of the fastener according to claim 2, wherein: the fastener sample in the step of sample selection can be selected to be a bolt or a nut.
4. The method for detecting the corrosion resistance of the fastener according to claim 2, wherein: and the corrosive liquid in the corrosive liquid preparation process in the second step is acidic corrosive liquid.
5. The method for detecting the corrosion resistance of the fastener according to claim 2, wherein: in the fourth step, the control test box in the operation process of the corrosion test is arranged in three comparison units A1, B1 and C1 of an S1 control test group, and the design temperature is 48-50 ℃.
6. The method for detecting the corrosion resistance of the fastener according to claim 2, wherein: in the fourth step, the control test box in the operation process of the corrosion test is arranged in three comparison units of A2, B2 and C2 of an S2 control test group, and the design temperature is 18-20 ℃.
7. The method for detecting the corrosion resistance of the fastener according to claim 2, wherein: in the fourth step, the control test box is arranged in three comparison units A3, B3 and C3 of an S3 control test group in the corrosion test operation process, and the design temperature is-8-10 ℃.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113433054A (en) * | 2021-06-18 | 2021-09-24 | 深圳市卡德姆科技有限公司 | Method for testing corrosion resistance after surface treatment of metal material |
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| CN113433054A (en) * | 2021-06-18 | 2021-09-24 | 深圳市卡德姆科技有限公司 | Method for testing corrosion resistance after surface treatment of metal material |
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Application publication date: 20210101 |