Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of better heat preservation is provided, the thermal insulation nursing bottle that the time is longer.Technical scheme of the present invention is as follows to achieve these goals:
A kind of thermal insulation nursing bottle, comprise cup, bowl cover, described cup comprises outer wall, inwall, is vacuum layer between described outer wall and described inwall; Described outer wall is made up of transparent material, and the outside of described inwall is provided with infrared reflecting layer, cermet coating and antireflection layer from inside to outside successively.
Preferably, described antireflection layer is SiO
2thin film or Al
2o
3thin film.
Preferably, described antireflection layer surface roughness is not more than 100nm.
Preferably, described infrared reflecting layer comprises by mass percentage:
Cu 40~45%、Fe 15~20%、Al 20~25%、Zr 3~8%、Ni 10~15%。
Preferably, described infrared reflecting layer comprises by mass percentage:
Cu 42.5%、Fe 16.2%、Al 22.3%、Zr 5.6%、Ni 13.4%。
A processing technology for thermal insulation nursing bottle, described infrared reflecting layer preparation technology comprises the following steps:
A: carry out weigh comparison, mixing by metal dust Cu and Zr, adopts three target magnetic control sputtering techniques, forms first coating plated film in the outside of described inwall;
B: on the basis of first coating plated film, the mixture of Fe and Ni is formed second coating plated film by same three target magnetic control sputtering techniques of passing through;
C: on the basis of second coating plated film, is evenly coated with spray by three target magnetic control sputtering techniques by the mixture of Zr and Al equally.
Thermal insulation nursing bottle provided by the invention is except the vacuum layer adopted in conventional vacuum plate delays heat radiation, more adopt infrared reflecting layer in conjunction with transparent cup outer wall, thus reach solar radiation is converted into heat, and then be the liquid heat in cup, thus its heat insulation effect time is longer.
Detailed description of the invention
Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Embodiment:
As shown in Figure 1, a kind of thermal insulation nursing bottle, comprises cup 1, bowl cover 2, and described cup 1 comprises outer wall 11, inwall 13, is vacuum layer 12 between described outer wall 11 and described inwall 13; Described outer wall 11 is made up of transparent material, and the outside of the described inwall in outside of described inwall 13 is provided with solar energy absorbing coating 14, and solar energy absorbing coating 14 comprises infrared reflecting layer, cermet coating and antireflection layer from inside to outside successively.
Wherein, infrared reflecting layer is positioned at the bottom, requires to have higher infrared reflectivity, has higher antioxidation and anti-diffusivity under high temperature, have good adhesion with base material, therefore described in the present embodiment, infrared reflecting layer comprises by mass percentage simultaneously:
Cu 40~45%、Fe 15~20%、Al 20~25%、Zr 3~8%、Ni 10~15%。
Preferably, described infrared reflecting layer comprises by mass percentage:
Cu 42.5%、Fe 16.2%、Al 22.3%、Zr 5.6%、Ni 13.4%。
The infrared reflecting layer preparation technology of above-mentioned thermal insulation nursing bottle comprises the following steps:
A: carry out weigh comparison, mixing by metal dust Cu and Zr, adopts three target magnetic control sputtering techniques, forms first coating plated film in the outside of described inwall;
B: on the basis of first coating, the mixture of Fe and Ni is formed second coating plated film by same three target magnetic control sputtering techniques of passing through;
C: on the basis of second coating, is evenly coated with spray by three target magnetic control sputtering techniques by the mixture of Zr and Al equally.
Three target magnetic control sputtering techniques are employing three targets magnetic sputtering film plating machines, utilize physical gas phase deposition technology, there is after charged particle is accelerated in the electric field the feature of certain kinetic energy, ion is guided into the target electrode (negative electrode) made for sputtered material, and target atom is sputtered out make it move to substrate along certain direction and the final method in deposited on substrates film forming.Magnetron sputtering is that magnetic control principle to be combined with common sputtering technology the trajectory of electron motion utilized in the special distributed controll electric field in magnetic field, the technique of sputtering is improved with this, make coating film thickness and uniformity controlled, and good, the cohesive force of thin film compactness of preparation is strong and high purity.Patent of the present invention, quotes three target heads, points three times by than the Coating Materials uniform sputter converted to milk bottle inner tube outer wall.
The Main Function of cermet coating realizes the absorption (300 ~ 2100nm) to solar radiation wave band, ensures to have higher transmitance at infra red radiation band (2100 ~ 25000nm) simultaneously, namely do not have an impact to infra-red radiation.
Antireflection layer is positioned at outermost layer, and its Main Function is the reflectance reducing solar spectral, thus realizes solar absorptance to greatest extent, and the antireflection layer in the present embodiment adopts SiO
2thin film or Al
2o
3thin film.Roughness reduces another key factor of surface reflection, and simulation result shows, when surface roughness is not more than 100nm, along with the increase of roughness, absorbs and constantly increase, but infra-red radiation also corresponding enhancing simultaneously; When surface roughness is greater than 100nm, absorbance substantially no longer increases, and emissivity increases fast.
According to micro-plane theory, surface is done special custom process and the aperture on surface is mated with incident light frequency, trap effect can be reached, improve absorbance.
Above the technical scheme that the embodiment of the present invention provides is described in detail, apply specific case herein to set forth the principle of the embodiment of the present invention and embodiment, the explanation of above embodiment is only applicable to the principle helping to understand the embodiment of the present invention; Meanwhile, for one of ordinary skill in the art, according to the embodiment of the present invention, detailed description of the invention and range of application all will change, and in sum, this description should not be construed as limitation of the present invention.