CN102279152B - Metallic humidity-sensitive material, manufacturing technology thereof and manufacturing technology of metallic humidity-sensitive element - Google Patents
Metallic humidity-sensitive material, manufacturing technology thereof and manufacturing technology of metallic humidity-sensitive element Download PDFInfo
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- CN102279152B CN102279152B CN 201110165177 CN201110165177A CN102279152B CN 102279152 B CN102279152 B CN 102279152B CN 201110165177 CN201110165177 CN 201110165177 CN 201110165177 A CN201110165177 A CN 201110165177A CN 102279152 B CN102279152 B CN 102279152B
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Abstract
The invention discloses a metallic humidity-sensitive material, a manufacturing technology thereof and a manufacturing technology of a metallic humidity-sensitive element. The metallic humidity-sensitive material comprises a tin bronze base material and a cellulose acetate membrane pasted on the tin bronze base material with a largest surface, the thickness of the tin bronze base material is greater than zero and less than 0.2mm, and the thickness of the cellulose acetate membrane is greater than zero and less than 0.2mm. The manufacturing technology of the metallic humidity-sensitive material comprises the following steps: 1, pasting the cellulose acetate membrane on the largest surface of the tin bronze base materia; and 2, hot pressing at a temperature of 80-100DEG C. The manufacturing technology of the metallic humidity-sensitive element comprises the following steps: 1, strip cutting; 2, coiling; 3, roasting; and 4, dry-wet aging processing. The metallic humidity-sensitive material which can sense the humidity to generate a form change and has a low production cost is suitable for industrial production and application, and has a wide application scope, and the humidity-sensitive element manufactured with the material has the advantage of simple structure, low cost, good stability, wide application scope, and easy popularization.
Description
Technical field
The present invention relates to the wet element processing and fabricating method of a kind of wet sensory material, manufacture craft and sense, particularly a kind of can perception humidity metal wet sensory material and manufacture craft thereof and utilize the wet element manufacture craft of metal sense of described metal wet sensory material.
Background technology
The length of hair and some synthon becomes with ambient gas relative humidity: relative humidity is higher, and length is larger.Utilize this principle to become hair hygrometer by hygrometer processed.When the length of synthon changes with the change of relative humidity, just can change by mechanical transmission mechanism the position of pointer.But range of application and field when the characteristic of hair and these synthon itself has determined that it is as humidity inductive material are very limited, and basically are limited at present aspect meteorologic survey and use.
There is following technological deficiency in the hair formula hygrometer that the wet element of the sense that utilizes hair or these synthon to make is made: cost height, complex structure, card size are limited and make its range of application narrow with structure,, be difficult for universal.
In addition, there is following technological deficiency in the electronic type hygrometer that compares widespread use in the prior art: complex structure, cost height, need power supply (often changing battery), poor stability, and LCDs and sensor easily aging, can not in wet environment, use, serviceable life is short.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of cost low, be suitable for suitability for industrialized production and application, have wide range of applications, can respond to the metal wet sensory material of humidity, and provide the manufacture craft of above-mentioned metal wet sensory material, and providing a kind of metal sense that utilizes above-mentioned metal wet sensory material wet element manufacture craft, that the wet element of the metal sense of making has is simple in structure, cost is low, good stability, wide, the easy penetration and promotion of range of application.
Technical scheme of the present invention is achieved in that the metal wet sensory material, comprise the tin bronze base material and in the sticking cellulose acetate membrane of pressing of maximized surface of described tin bronze base material, the thickness of described tin bronze base material is greater than zero, less than 0.2 millimeter, and the thickness of described cellulose acetate membrane is greater than zero, less than 0.2 millimeter.Different according to purposes, stability and the sensitivity of needed metal wet sensory material in the reality can be regulated the thickness of described tin bronze base material and the thickness of described cellulose acetate membrane, make the two cooperatively interact to adapt to actual needs.
Above-mentioned metal wet sensory material, the thickness of described tin bronze base material are 0.05～0.2 millimeter, and the thickness of described cellulose acetate membrane is 0.04～0.2 millimeter.
Above-mentioned metal wet sensory material, described cellulose acetate membrane is pressed on maximized surface of described tin bronze base material by AAA is gluing.Use AAA glue that described cellulose acetate membrane and described tin bronze base material are pasted, have following technological merit: firm pasting, difficult drop-off, be beneficial to following process and application; Above-mentioned metal wet sensory material, in described tin bronze base material: the quality percentage composition of tin is 6～7%, plumbous quality percentage composition less than or equal to 0.02%, the quality percentage composition of phosphorus is 0.10～0.25%, the quality percentage composition of aluminium less than or equal to 0.002%, the quality percentage composition of iron less than or equal to 0.05%, the quality percentage composition of silicon less than or equal to 0.002%, the quality percentage composition of antimony less than or equal to 0.002%, the quality percentage composition of bismuth less than or equal to 0.002%, the quality percentage composition of other impurity less than or equal to 0.1%, surplus is copper.Use this tin bronze base material can be so that the stability of metal wet sensory material is higher, sensitiveer to humidity inductive, more be suitable for the practical application of metal wet sensory material.
Above-mentioned metal wet sensory material, the tensile strength of described tin bronze base material are that 650～750MPa, length growth rate are 5～10%.The tin bronze base material that use has this tensile strength and a length growth rate can improve the stability of metal wet sensory material and to the sensitivity of humidity inductive, make the metal wet sensory material more be suitable for feeling the making of wet element.
Above-mentioned metal wet sensory material, the tensile strength of described tin bronze base material are that 650～750MPa, length growth rate are 5～10%.
The manufacture craft of above-mentioned metal wet sensory material comprises the steps:
(a) relative humidity is under 50～60%RH condition described cellulose acetate membrane to be sticked on maximized surface of described tin bronze base material in 15-35 degree centigrade of environment; Preferably before pasting, be stained with acetone with rag and clean up described tin bronze base material surface contaminants oil stain.
(b) under being 80～100 degrees centigrade condition, temperature carries out hot pressing.
Utilize the wet element manufacture craft of metal sense of above-mentioned metal wet sensory material, comprise the steps:
(a) slitting: above-mentioned metal wet sensory material is cut into bar, and the width of bar can be selected according to actual needs;
(b) bending forming or coiling: different according to its purposes with the bar bending forming in the step (a) or be coiled into spring, can be coil spring or plane scroll spring;
(c) baking: 50～120 degrees centigrade of bakings 2～48 hours;
(d) dried deterioration with moisture is processed: transfer and set to 0 more than .5 hour at 15-40 degree centigrade, the condition of relative humidity≤20%RH, then transfer more than or equal to the condition of 95%RH and set to 0 more than .5 hour at 15-40 degree centigrade, relative humidity.Preferred dried deterioration with moisture number of processes is more than 10 times.
The above-mentioned metal sense element manufacture craft that wets, in step (b), bar is coiled in the typing hole that spring is placed on fixed cover (in the wet element manufacture craft of actual metal sense, also have and only the bar bending forming need need not put into the wet element of metal sense that fixed cover is made), the internal diameter in described typing hole equals the diameter of described spring, is beneficial to be fixed in baking procedure and finalize the design after the coiling; After step (c) baking, described spring is taken out from described typing hole, and then the dried deterioration with moisture that carries out in the step (d) is processed.
The invention has the beneficial effects as follows: metal wet sensory material of the present invention can be responded to humidity, solved the defective that does not have the metal wet sensory material in the prior art, have with low cost, be suitable for suitability for industrialized production and application, have wide range of applications, be applicable to the advantages such as every field, be suitable for as the wet element of sense, the on-off element etc. that can be applied to common hygroscopic making and change starting outfit according to humidity, it is the wet element of passive sense, itself need to can not respond to humidity by other any means, without manual control and operation, because the low disposable products of can making of cost use.The metal wet sensory material that the manufacture craft of metal wet sensory material of the present invention is produced has the advantages such as stability is high, reliability is quick on the draw to humidity by force, and is durable in use.The wet element of the metal sense that the wet element manufacture craft of metal sense of the present invention is produced can be used hygrometer and make and the different moisture levels inductive switch, has good stability, highly sensitive, and cost is low the advantage such as to be easy to popularize.
Description of drawings
Fig. 1 is the structural representation of metal wet sensory material of the present invention.
Among the figure: 1-tin bronze base material, 2-AAA glue, 3-cellulose acetate film.
Embodiment
Embodiment 1
As shown in Figure 1, present embodiment metal wet sensory material comprises tin bronze base material 1 and glues the cellulose acetate membrane 3 of pressure at 1 one maximized surfaces of described tin bronze base material, the thickness of described tin bronze base material 1 is greater than zero, less than 0.2 millimeter, and the thickness of described cellulose acetate membrane 3 is greater than zero, less than 0.2 millimeter.Different according to purposes, stability and the sensitivity of needed metal wet sensory material in the reality can be regulated the thickness of described tin bronze base material and the thickness of described cellulose acetate membrane, make the two cooperatively interact to adapt to actual needs.The thickness of preferred described tin bronze base material is 0.05～0.2 millimeter, and the thickness of described cellulose acetate membrane is 0.04～0.2 millimeter; Material is obtained easily, and processing and fabricating is convenient.Described tin bronze base material 1 can be sheet, strip or band shape.
In the present embodiment, described cellulose acetate membrane 3 is by AAA glue 2 sticking being pressed on 1 one maximized surfaces of described tin bronze base material.Use AAA glue 2 that described cellulose acetate membrane 3 and described tin bronze base material 1 are pasted, have following technological merit: firm pasting, difficult drop-off, be beneficial to following process and application; The cellulose acetate rete will expand or shrink the humidity inductive sensitivity in metal wet sensory material induction humidity, and the tin bronze layer is to not reaction of humidity, occur bending and deformation because 2 pairs of two-layer restraining functions of described AAA glue make described tin bronze base material 1, humidity changes described greatly tin bronze base material 1 distortion greatly.The characteristic of Here it is passive metal wet sensory material of the present invention.
In described tin bronze base material 1: the quality percentage composition of tin is 6～7%, plumbous quality percentage composition is less than or equal to 0.02%, the quality percentage composition of phosphorus is 0.10～0.25%, the quality percentage composition of aluminium is less than or equal to 0.002%, the quality percentage composition of iron is less than or equal to 0.05%, the quality percentage composition of silicon is less than or equal to 0.002%, the quality percentage composition of antimony is less than or equal to 0.002%, the quality percentage composition of bismuth is less than or equal to 0.002%, the quality percentage composition of other impurity is less than or equal to 0.1%, surplus is copper.Use this tin bronze base material can be so that the stability of metal wet sensory material is higher, sensitiveer to humidity inductive, more be suitable for the practical application of metal wet sensory material.The tensile strength of preferably utilizing described tin bronze base material 1 is that 650～750MPa, length growth rate are 5～10%.The tin bronze base material that use has this tensile strength and a length growth rate can improve the stability of metal wet sensory material and to the sensitivity of humidity inductive, make the metal wet sensory material more be suitable for practical application.
Embodiment 2
The manufacture craft of metal wet sensory material is characterized in that described in the embodiment 1, comprises the steps:
(a) be under 50～60%RH condition described cellulose acetate membrane 3 to be sticked on 1 one maximized surfaces of described tin bronze base material in relative humidity;
(b) under being 80～100 degrees centigrade condition, temperature carries out hot pressing.
In the step (a), be under 15～35 degrees centigrade the condition described cellulose acetate membrane 3 to be sticked on 1 one maximized surfaces of described tin bronze base material in temperature.
Embodiment 3
Utilize the wet element manufacture craft of metal sense of metal wet sensory material described in the embodiment 1, it is characterized in that, comprise the steps:
(a) slitting: above-mentioned metal wet sensory material is cut into bar;
(b) coiling: the bar in the step (a) is coiled into spring;
(c) baking: 50～120 degrees centigrade of bakings 2～48 hours;
(d) dried deterioration with moisture is processed: transfer and set to 0 more than .5 hour at 15-40 degree centigrade, the condition of relative humidity≤20%RH, then transfer more than or equal to the condition of 95%RH and set to 0 more than .5 hour at 15-40 degree centigrade, relative humidity.Preferred sense deterioration with moisture is processed and is repeated more than 10 times.
In step (b), bar is coiled in the typing hole that spring is placed on fixed cover, and the internal diameter in described typing hole equals the diameter of described spring; After step (c) baking, described spring is taken out from described typing hole, and then the dried deterioration with moisture that carries out in the step (d) is processed.
Embodiment 4
The wet element of the sense that utilizes metal wet sensory material of the present invention to make is made hygrometer:
The metal wet sensory material comprises tin bronze base material 1 and glues the cellulose acetate membrane 3 of pressing, 0.075 millimeter of the thickness of described tin bronze base material 1,0.065 millimeter of the thickness of described cellulose acetate membrane 3 at 1 one maximized surfaces of described tin bronze base material.Described cellulose acetate membrane 3 is by AAA glue 2 sticking being pressed on 1 one maximized surfaces of described tin bronze base material.
In described tin bronze base material 1: the quality percentage composition of tin is 6～7%, plumbous quality percentage composition is less than or equal to 0.02%, the quality percentage composition of phosphorus is 0.10～0.25%, the quality percentage composition of aluminium is less than or equal to 0.002%, the quality percentage composition of iron is less than or equal to 0.05%, the quality percentage composition of silicon is less than or equal to 0.002%, the quality percentage composition of antimony is less than or equal to 0.002%, the quality percentage composition of bismuth is less than or equal to 0.002%, the quality percentage composition of other impurity is less than or equal to 0.1%, surplus is copper.The tensile strength of described tin bronze base material 1 is that 650～750MPa, length growth rate are 5～10%.
The manufacture craft of metal wet sensory material comprises the steps: in the present embodiment
(a1) be that 25 degrees centigrade, relative humidity are under the 50-60%RH condition described cellulose acetate membrane 3 to be sticked on 1 one maximized surfaces of described tin bronze base material in temperature;
(b1) under being 80-100 degree centigrade condition, temperature carries out hot pressing.
Utilize the wet element manufacture craft of metal sense of the described metal wet sensory material of present embodiment, comprise the steps:
(a2) slitting: above-mentioned metal wet sensory material is cut into bar, and described bar width is 3 millimeters; Length is 73 millimeters;
(b2) coiling: the bar in the step (a) is coiled into spring, and axle diameter is 3.2 millimeters;
(c2) baking: 80 degrees centigrade of bakings 2 hours;
(d2) dried deterioration with moisture is processed: placed 1 hour under 25 degrees centigrade, the condition of relative humidity 20%RH, then placed 1 hour under 25 degrees centigrade, the condition of relative humidity 95%RH.So repeat 10 times.
In step (b2), bar is coiled in the typing hole that spring is placed on fixed cover, and the internal diameter in described typing hole equals the diameter of described spring; After step (c2) baking, described spring is taken out from described typing hole, and then the dried deterioration with moisture that carries out in the step (d2) is processed.And the number of times of burin-in process is 10 times (number of times is more, and stability is better, and is limited but stability improves, uneconomical from suitability for industrialized production) in the step (d2).
Present embodiment utilizes metal wet sensory material of the present invention to make hygrometer test result following (because the hygrometer and the thermometer that utilize metal wet sensory material of the present invention to make are made of one, therefore the temperature test result also being listed in the lump):
One, State Standard Matter Research Centre's test result is as follows:
1, calibrating institute is according to technological document
JJG 205-1980 mechanical type Hygrothermograph vertification regulation; JJG2046-1990 psychrometry utensil measurement verification system
2, test condition
Provide stable warm and humid environment by the MFT-434A climatic chamber, provide temperature and relative humidity standard value by the M4/1111H precise dew-point hygrometer, the uncertainty of humidity standard value is 1%RH, and the uncertainty of standard temperature is 0.1 ℃.Test environment conditions: temperature is 24.2 ℃, and relative humidity is 51%RH.
3, test result
Two, Henan Province's metering scientific research institute test result is as follows:
1, calibrating institute is according to technological document
JJG 205-1980 mechanical type Hygrothermograph vertification regulation; JJG2046-1990 psychrometry utensil measurement verification system
2, test condition
Main measurement instrument is the M4/1111H precise dew-point hygrometer.Test environment conditions: temperature is 30 ℃, and relative humidity is 60%RH.
3, test result
Three, East China country metrology and measurement center (Shanghai Institute of Measurement and Testing Technology) test result is as follows:
1, calibrating institute is according to technological document
JJG 205-2005 mechanical type Hygrothermograph vertification regulation
2, test condition
Accurate humiture calibrating tank EC30, precise dew-point hygrometer DEW PRIME II.
Test environment conditions: temperature is 22 ℃, and relative humidity is 50%RH.
The expanded uncertainty of this calibration result: humidity: U=2%RH (k=2); Temperature: U=1 ℃ (k=2).
3, test result
Four, Tianjin City Measuring Technology Inst.'s test result is as follows:
1, calibrating institute is according to technological document: JJG 205-2005 mechanical type Hygrothermograph vertification regulation
2, test condition
Precise dew-point hygrometer M4/1111H, 0.08 ℃ of accuracy (k=2).Test environment conditions: temperature is 23 ℃.
3, test result
Five, south China country metrology and measurement center (Guangdong Institute of Metrology) test result is as follows:
1, calibrating institute is according to technological document
JJG 205-2005 mechanical type Hygrothermograph vertification regulation; FFR200104 elasticity humidity-sensitive element thermohygrometer calibration steps file
2, test condition
The cloudy digital thermometer of self-correcting type platinum electricity/RCY-2A type, meter characteristic: 0.03-0.06 ℃; Temperature calibrating case/DJM+10A, meter characteristic: U=2%RH (k=2).
Test environment conditions: temperature is 25 ± 2 ℃, and relative humidity is less than or equal to 85%RH.
3, test result
Illustrate: (1), analysis are according to " JJF1059-1999 evaluation of uncertainty in measurement and expression ", and the expanded uncertainty of the error of indication data of giving: relative humidity is: U=4%RH (k=2), temperature is: U=1 ℃ (k=2).(2), during testing humidity, humidity the temperature inside the box is 25 ℃.
Six, National Meteorological Station's test result is as follows:
Seven, Beijing's metering detection research institute test result is as follows:
1, calibrating institute is according to technological document
JJF (capital) 35-2004 mechanical pointer thermohygrometer calibrating standard
2, test condition
Precise dew-point hygrometer M4/1311DR, M4/T-100E.Test environment conditions: temperature is 20.0 ℃, relative humidity 40%RH.
3, test result { can not deleted temperature }
| Standard temperature (℃) | The temperature displayed value (℃) | Modified value (℃) |
| 20.0 | 20 | 0.0 |
Testing humidity value under 20 ℃ of conditions:
| Humidity standard value (%RH) | Humidity display value (%RH) | Modified value (%RH) |
| 30.0 | 28 | 2.0 |
| 50.0 | 48 | 2.0 |
| 80.0 | 80 | 0.0 |
Eight, northeast country metrology and measurement center (Liaoning Institute of Metrology) test result is as follows:
1, calibrating institute is according to technological document
JJG205-2005 mechanical finger Hygrothermograph vertification regulation
2, test condition
Precise dew-point hygrometer.Test environment conditions: temperature is 20.6 ℃, relative humidity 57%RH.
3, test result
Claims (4)
1. the manufacture craft of metal wet sensory material is characterized in that, comprises the steps:
(a) the metal wet sensory material comprises tin bronze base material (1) and in the sticking cellulose acetate membrane (3) of pressing of (1) maximized surface of described tin bronze base material; The thickness of described tin bronze base material (1) is 0.05～0.2 millimeter, and the thickness of described cellulose acetate membrane (3) is 0.04～0.2 millimeter; In described tin bronze base material (1): the quality percentage composition of tin is 6～7%, plumbous quality percentage composition is less than or equal to 0.02%, the quality percentage composition of phosphorus is 0.10～0.25%, the quality percentage composition of aluminium is less than or equal to 0.002%, the quality percentage composition of iron is less than or equal to 0.05%, the quality percentage composition of silicon is less than or equal to 0.002%, the quality percentage composition of antimony is less than or equal to 0.002%, the quality percentage composition of bismuth is less than or equal to 0.002%, the quality percentage composition of other impurity is less than or equal to 0.1%, surplus is copper; The tensile strength of described tin bronze base material (1) is that 650～750MPa, length growth rate are 5～10%; Be under 50～60%RH condition described cellulose acetate membrane (3) to be sticked on by AAA glue (2) on (1) maximized surface of described tin bronze base material in relative humidity;
(b) under being 80～100 degrees centigrade condition, temperature carries out hot pressing.
2. manufacture craft according to claim 1, it is characterized in that, in the step (a), be that relative humidity is under the 50-60%RH condition described cellulose acetate membrane (3) to be sticked on the described tin bronze base material (1) in 15～35 degrees centigrade the environment in temperature.
3. utilize the wet element manufacture craft of metal sense of the metal wet sensory material of the described manufacture craft making of claim 1, it is characterized in that, comprise the steps:
(a) slitting: above-mentioned metal wet sensory material is cut into bar;
(b) bending forming or coiling: with the bar bending forming in the step (a) or be coiled into spring;
(c) baking: 50～120 degrees centigrade of bakings 2～48 hours;
(d) dried deterioration with moisture is processed: transfer and set to 0 more than .5 hour at 15-40 degree centigrade, the condition of relative humidity≤20%RH, then transfer more than or equal to the condition of 95%RH and set to 0 more than .5 hour at 15-40 degree centigrade, relative humidity.
4. the wet element manufacture craft of metal sense according to claim 3 is characterized in that, in step (b), bar is coiled in the typing hole that spring is placed on fixed cover, and the internal diameter in described typing hole equals the diameter of described spring; After step (c) baking, described spring is taken out from described typing hole, and then the dried deterioration with moisture that carries out in the step (d) is processed.
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| CN1019760B (en) * | 1987-06-11 | 1992-12-30 | 国家机械工业委员会上海材料研究所 | Make the method for multihole device by globular metallic powder |
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