CN214584658U - Device for measuring smokable substances in powder coating - Google Patents

Abstract

The utility model relates to a technical field of the survey of volatile matter content in the coating. Wherein, the utility model provides a device for surveying smokeable thing in powder coating, it includes the translucent cover body, weighs the material ware and heating device, it holds to weigh material ware and hot plate among the translucent cover body, wherein this a device for surveying smokeable thing in the powder coating still is equipped with cooling crystallization device, cooling crystallization device include cooling tank and crystallization plate, cooling tank and crystallization plate be located the top of the translucent cover body. The device can not only qualitatively judge whether the powder coating contains the smokable component, but also quantitatively analyze the content of the smokable component. In addition, the device has simple structure and easy operation.

Description

Device for measuring smokable substances in powder coating

Technical Field

The utility model belongs to the technical field of the technique of assay of volatile matter content in the coating and specifically relates to a device that is arranged in determining powder coating and can smokes the thing.

Background

The powder coating is a solid powder synthetic resin coating composed of solid resin, pigment, filler, auxiliary agent and the like.

In the prior art, powder coatings are prepared entirely from solid materials. However, some organic substances which can be volatilized by small molecules still exist therein. In the high-temperature curing process of the coating, the volatile organic compounds of the small molecules are formed into vapor and then are recrystallized when meeting cold air after being volatilized, and thus smoke is easily formed. Such fumes can adversely affect the application of the coating.

Such a phenomenon of generating smoke is often caused by a large difference between the ambient temperature and the temperature in the curing oven when the air temperature is low. However, no actual detection device has been known in the prior art for accurate evaluation thereof.

In the prior art, similar test methods are based mainly on the test methods described in GB/T1725 determination of the nonvolatile content of paints, varnishes and plastics. Specifically, the test method comprises the following steps: taking a sample with fixed mass, then placing the sample in a high-temperature oven, baking the sample for 1 hour at a rated temperature, and taking out the sample, and measuring the mass loss of the sample. The content of the volatile components is calculated accordingly.

However, this test method can only quantitatively analyze the content (e.g., water content) of the volatile component in the paint, but cannot determine whether the volatile component contains an aerosol-forming substance, and even the specific content thereof. The testing method can not judge whether the volatilized organic matters form crystals under the condition of quenching to generate smoke, so that the testing method is ineffective in smoke verification.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve foretell not enough among the prior art, and provide a device that is arranged in survey powder coating can smoke the thing.

The utility model discloses a device has simulated the formation process of smog to reduced the mechanism of the production of crystallization thing, it can contain the smokeable thing component to powder coating and carry out qualitative judgement, can also carry out quantitative analysis to the content of smokeable thing component.

According to the utility model discloses, wherein provide a device for surveying smokeable thing in powder coating, it includes the translucent cover body, weighs the glassware and heating device, it holds to weigh glassware and hot plate among the translucent cover body, wherein the device still is equipped with cooling crystallization device, cooling crystallization device include cooling tank and crystallization plate, cooling tank and crystallization plate be located the top of the translucent cover body.

As mentioned above, the utility model is further provided with a cooling crystallization device which is arranged above the heating device, and the cooling crystallization device is composed of the cooling tank and the crystallization plate. If the powder coating contains crystallizable smokable substances, the crystallizable smokable substances are volatilized at a high position after heating, and the crystallizable substances are cooled to form crystals when the crystallizable substances are cooled after volatilization. In this way, it is possible to qualitatively determine whether or not the volatile substance contains a crystallizable substance, and further, to quantitatively analyze the content of the smokable substance component.

Further, the transparent cover is unsealed. Preferably, the transparent cover body is made of organic glass.

Further, the weighing pan is located above the heating plate. Preferably, the cooling bath is disposed above the crystallization plate.

Further, the material weighing dish is a glass or metal material weighing dish.

Further, the heating device is a heating plate. Preferably, the heating plate is an electric heating plate or a ceramic heating plate.

Further, the crystallization plate is a thin plate made of metal having good heat conductivity. Preferably, the thickness of the crystal plate is 0.3-0.8mm, and the material of the crystal plate is aluminum or stainless steel. More preferably, the crystallization plate is an aluminum plate with a thickness of 0.5 mm.

Further, the cooling tank is a glass or metal tank body. Preferably, the cooling liquid used in the cooling tank is an ice-water mixture.

Compared with the prior art, the utility model provides a device for determining smokable material among powder coating, its cooling crystallization device through being equipped with makes volatile smog form the crystallization to the device not only can contain the smokable material component to powder coating and carry out qualitative judgement, can also carry out quantitative analysis to the content of smokable material component. In addition, the device has simple structure and easy operation.

Drawings

The advantages and spirit of the present invention can be further understood by the following detailed description of the invention and the accompanying drawings.

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a cooling tank 2, a crystallization plate 3, a transparent cover 4, a weighing dish 5 and a heating plate.

Detailed Description

The following detailed description of the embodiments of the present invention refers to the accompanying drawings. However, the present invention should be understood not to be limited to such an embodiment described below, and the technical idea of the present invention may be implemented in combination with other known techniques or other techniques having the same functions as those of the known techniques.

In the following description of the embodiments, for the purposes of clearly illustrating the structure and operation of the present invention, directional terms are used, but terms such as "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "axial", "radial", etc. should be construed as words of convenience and should not be construed as limiting terms.

In the following description of the specific embodiments, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "a" and "an" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "a", "an", or "two" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically stated otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Unless clearly indicated to the contrary, each aspect or embodiment defined herein may be combined with any other aspect or embodiments. In particular, any feature indicated as being preferred or advantageous may be combined with any other feature indicated as being preferred or advantageous.

The invention will be further described with reference to the following specific examples:

examples

As shown in fig. 1, the device for measuring smokable substances in powder coating according to the present invention comprises: a cooling tank 1, a crystallization plate 2, a transparent cover body 3, a weighing dish 4 and a heating plate 5. The weighing dish 4 is positioned inside the transparent cover body 3 and is arranged on the heating plate 5, the crystallization plate 2 is positioned above the top of the transparent cover body 3, and the cooling tank 1 is arranged on the crystallization plate 2.

Specifically, according to the present invention, a cooling crystallization device is further provided above the heating device, and the cooling crystallization device is composed of the cooling tank 1 and the crystallization plate 2.

The heating plate 5 adopted in the utility model is an electric heating plate. When the powder coating curing device is used, the temperature of the heating plate is set to 180-210 ℃ according to the curing condition of the powder coating to be measured.

The weigh pan 4 is a glass weigh pan placed over the middle of the hot plate to achieve uniform heating.

The transparent cover body 3 is a cylindrical organic glass cover, the bottom end of the transparent cover body is placed on the heating plate 5, and the material weighing dish 4 is contained in the transparent cover body. The transparent cover body 3 has an inner diameter of 150mm and a height of 250 mm.

The crystallization plate 2 is made of a metal thin plate with good heat conductivity, specifically an aluminum plate with a thickness of 0.5mm, and is located on the top end of the transparent cover body 3.

The transparent cover 3 is non-sealed as a whole.

The cooling tank 1 is a metal tank body, the bottom of which is arranged on a crystallization plate, and an ice-water mixture is placed in the tank body, so that the aim of rapidly cooling and crystallizing volatilizable smoke dust is fulfilled.

The working mode of the device is as follows:

in use, 50 grams of the powder coating to be measured is weighed out by a spatula and placed in a glass weighing pan 4. Then, the electric heating plate 5 is turned on to maintain the temperature thereof between 180 ℃ and 210 ℃. After the powder coating in glass weigh pan 4 is heated, the volatilizable material in it turns into organic vapor and volatilizes. When the volatilized organic vapor rises and comes into contact with the crystallization plate 2 cooled by the cooling bath 1, crystallization starts and adheres to the crystallization plate 2. Since the transparent cover body 3 is not sealed as a whole, organic volatile components such as water vapor and other small molecules can be discharged out of the measuring device through the unsealed gap without affecting the qualitative judgment of the smokable component and the quantitative analysis of the quality of the smokable component.

The test time is 1 hour, and the inside volatilization and crystallization conditions can be observed through an organic glass cover. And after the test is finished, observing the condition of the crystal on the crystal plate to perform qualitative judgment. Further, the mass changes of the weighing dish 4 and the crystallization plate 2 were measured. Wherein the weight of the weighing dish 4 is changed into the weight of the volatile component, and the weight of the crystallization plate 2 is changed into the weight of the smokable component, so that the weight of the smokable component can be quantitatively analyzed.

The preferred embodiments of the present invention are described in the specification, and the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit the present invention. All technical solutions that can be obtained by logical analysis, reasoning or limited experiments according to the concept of the present invention by those skilled in the art are within the scope of the present invention.

Claims (10)

1. A device for determining smokable substances in powder coating materials, comprising a transparent cover body, a weighing pan and a heating device, the weighing pan and the heating plate being accommodated in the transparent cover body, characterized in that,

the device for measuring the smokable substances in the powder coating is also provided with a cooling crystallization device, wherein the cooling crystallization device comprises a cooling tank and a crystallization plate, and the cooling tank and the crystallization plate are positioned above the transparent cover body.

2. An apparatus for determining smokable material in a powder coating according to claim 1, wherein said transparent cover is non-sealable.

3. The apparatus of claim 1, wherein the weigh pan is positioned above the heating plate and the cooling bath is positioned above the crystallization plate.

4. The device for determining smokable material in a powder coating material according to claim 1, wherein said transparent cover is a transparent cover made of plexiglass.

5. An apparatus for determining smokable material for a powder coating according to claim 1, wherein said weigh pan is a glass or metal weigh pan.

6. The device for determining smokable material in a powder coating material according to claim 1, wherein said heating means is a hot plate.

7. The device of claim 5, wherein the heater plate is an electrical heater plate or a ceramic heater plate.

8. The apparatus of claim 1, wherein the crystalline plate has a thickness of 0.3-0.8mm and is made of aluminum or stainless steel.

9. An apparatus for determining smokable material for a powder coating according to claim 1, wherein said cooling bath is a glass or metal cooling bath.

10. The apparatus for determining smokable material in a powder coating material according to claim 1, wherein said cooling liquid used in said cooling bath is an ice-water mixture.

Images