فروش لاک حرارتی ناخن اصل در پک 5 عددی مارک ویونا VIONA با پنج رنگ صورتی - یاسی - زرشکی - سبز و آبی با قیمت ویژه از فروشگاه اینترنتی پارس تینا ، شاید شما هم از عمل کرد این لاک تعجب کرده باشید ولی این لاک واقعا با تغییر دما تغییر رنگ می دهد و با دمای سرد به رنگ تیره و با دمای گرم به رنگ روشن تبدیل می گردد. اگر از زدن لاک های تکراری خسته شده اید همین حالا لاک حرارتی اورجینال که شامل 5 رنگ زیبا و دلنشین می باشد را از ما سفارش دهید.
صورتی - زرشکی - یاسی
سبز - آبی
یکی از علاقه مندی های دختر خانم ها لاک زدن است ، حتما شما هم می دانید دخترها خانم ها به لاک زدن علاقه شدیدی دارند و برای آنها زدن و طراحی ناخن دست و پایشان لذت فوق العاده ای دارد ، اگر می خواهید دوست و یا همسر خود را با هدیه ای ساده و جالب قافلگیر کنید حتما لاک حرارتی را از فروشگاه ما خریداری نمایید. لاک ناخن حرارتی محصول جدید آرایشی بهداشتی سال که قابلیت تغییر رنگ با سرما و گرما همچنین دمای بدن را داراست، لاک حرارتی جدید ناخن ها را به طرز خاصی زیبا و درخشنده خواهد کرد .
لاک طراحی ناخن حرارتی و حساس به سرما و گرما
لاک حرارتی قیمت ,لاک حرارتی فیونا ,لاک حرارتی عمده ,لاک حرارتی جادویی ,لاک حرارتی چیه , لاک حرارتی بیونا ,لاک حرارتی ارزان,لاک حرارتی اصفهان,لاک حرارتی الیت ,لاک حرارتی در شهر تهران ,پخش لاک حرارتی,لاک ویونا ,لاک حرارتی شیراز ,لاک حرارتی مشهد
حتما شما نیز تبلیغات لاک حرارتی را دیده اید و خواهان آن هستید ، در این فروشگاه می توانید لاک حرارتی اورجینال را با قیمتی عالی از نمایندگی رسمی شرکت خریداری کنید و از اصالت کالا مطمئن باشید. در صورت تمایل برای خرید اینترنتی و پستی لاک حرارتی اصل و ارزان کافیست روی دکمه خرید پستی زیر کلیک کنید و فرم درخواست کالا را تکمیل نمایید تا سریعا برای شما ارسال گردد. لاک حرارتی عرضه شده در این فروشگاه به دو صورت تکی و پک 5 عددی به فروش می رسد که می توانید در جدول زیر آن را خریداری نمایید .
رنگ های لاک حرارتی که با تغییر دمای محیط تغییر رنگ می دهند
لاک حرارتی یاسی,لاک حرارتی زرشکی,لاک حرارتی سبز,لاک حرارتی آبی,لاک حرارتی صورتی
Wahl promotes excellence through quality by
What's Fused Cast
Zirconite (ZB) Series
The Glass Phase Of Fused Cast AZS Block
Factors affecting the color of fused cast AZS block
How To Improve Operating Life
What are Alumina Refractories
The Cracking Of Fused Cast AZS Block
Novel Refractories For The Glass
Refractory Application in the Walls of Glass Furnace
Advantages of Ceramic Fiber Module
The Selection Of Refractories For Regenerator Checkers In Soda Lime Glass Furnaces
The Selection Of Refractories For Regenerator Checkers In Soda Lime Glass Furnaces
Crystalline Phases And Transformation Of Silica Bricks
The mission of Wahl Refractory Solutions is to provide our customers with superior products custom engineered for your demanding applications.
What Are Refractories?
Refractories are heat-resistant materials that constitute the linings for high-temperature furnaces and reactors and other processing units. In addition to being resistant to thermal stress and other physical phenomena induced by heat, refractories must also withstand physical wear and corrosion by chemical agents. Refractories are more heat resistant than metals and are required for heating applications above 1000°F (538°C).
While this definition correctly identifies the fundamental characteristics of refractories--their ability to provide containment of substances at high temperature--refractories comprise a broad class of materials having the above characteristics to varying degrees, for varying periods of time, and under varying conditions of use. There are a wide variety of refractory compositions fabricated in a vast variety of shapes and forms which have been adapted to a broad range of applications. The common denominator is that when used they will be subjected to temperatures above 1000°F (538°C) when in service. Refractory products fall into two categories: brick or fired shapes, and specialties or monolithic refractories. Refractory linings are made from these brick and shapes, or from specialties such as plastics, castables, gunning mixes or ramming mixes, or from a combination of both.
Many refractory products, in final shape, resemble a typical construction brick. However, there are many different shapes and forms. Some refractory parts are small and may possess a complex and delicate geometry; others are massive and may weigh several tons in the form of precast or fusion cast blocks.
What Are Refractories Made Of?
Refractories are produced from natural and synthetic materials, usually nonmetallic, or combinations of compounds and minerals such as alumina, fireclays, bauxite, chromite, dolomite, magnesite, silicon carbide, zirconia, and others.
What Are Refractories Used For?
In general, refractories are used to build structures subjected to high temperatures, ranging from the simple to sophisticated, e.g. fireplace brick linings to reentry heat shields for the space shuttle. In industry, they are used to line boilers and furnaces of all types--reactors, ladles, stills, kilns--and so forth.
Depending upon the application, refractories must resist chemical attack, withstand molten metal and slag erosion, thermal shock, physical impact, catalytic heat and similar adverse conditions. Since the various ingredients of refractories impart a variety of performance characteristics and properties, many refractories have been developed for specific purposes. It is a tribute to the refractory engineers, scientists and technicians, and plant personnel that more than 5000 brand name products are listed in the latest Product Directory of the Refractories Industry in the United States.
The term Fused Cast refers to a manufacturing process in which the ceramic bonding is obtained by the solidification of a mixture which has been melted in an electric furnace and cast in liquid state into molds.
Zirconite series are a high quality Al2O3-ZrO2-SiO2(AZS) fused cast refractories, consisting of crystallized baddeleyite (ZrO2) and corumdum (Al2O3), and matrix glass. It is made by melting refined raw materials through a Heroult type electric arc method under a throrough quality control process.
Silica and Sodium oxide are the main components of the glass phase of fused cast AZS blocks. The content of Silica and Sodium oxide is related to the amount of glass phase. Controlling the content of Silica and Sodium oxide strictly is the key to ensure the performance of glass phase.
The main composition of fused cast AZS block includes baddeleyite, corundum, a small amount of mullite, glass phase and pores. In order to reduce and eliminate the residual thermal stress, the glass phase is essential for fused cast AZS to act as a buffer for the thermal stress.
However, too much glass phase will weaken the corrosion resistance. In the process of corrosion, the glass phase exudes first and be replaced with the high temperature glass melt, which will accelerate the corrosion. Accompanying the exudation of glass phase, bubbles give off, which will contaminate the glass melt.
The segregation of fused cast AZS is also caused by the glass phase. in theory, Alumina, Zirconia and Silica do not exist in the glass phase. When the alkali metal oxides(Sodium oxide or Hydroxide) are introduced, most Silica will enter the glass phase. Sodium oxide constitutes the key components of glass phase with Silica and Alumina. With the decreasing of Sodium oxide, the glass phase decreases. But increasing the Sodium oxide can reduce the viscosity of glass phase.
Iron, titanium, calcium, magnesium and other impurities should be avoided. The impurities can increase the glass phase but reduce the the viscosity of glass phase and pollute the glass melt.
Sunrise is a refractory material supplier from China. The main products of Sunrise include fused cast AZS block, fused cast alumina block, mullite brick, zircon brick, alumina bubble brick, sillimanite brick, corundum brick, low porosity fireclay brick, high alumina brick, all kinds of glass furnace ramming masses, etc
There are many factors that affect the colors of fused cast block, such as the melting atmosphere, the solubility of the impurities, the valence of multivalent ions, and the reaction between the mold sand and the molten glass.
The oxidizing degree, the residual carbon content and the valence of the transition element ions have a significant effect on the color of fused cast AZS block.
There are two methods for the production of fused cast AZS block: reducing method and oxidizing method. The fused cast AZS block made in the reducing way features dense structure and low viscosity glass phase, while the AZS made in the oxidizing method features good corrosion resistance.
In the reducing atmosphere, the multivalent ions are Fe2+ and Ti3+. FeO is black and the Ti3+ is purple. The residual carbon content is higher compared to the oxidizing method. All these factors make the fused cast AZS darker in color.
In the oxidizing atmosphere, the multivalent ions are Fe3+ and Ti4+. Fe3+ is red and TiO2 is red or orange-red. The residual carbon content is lower. Thus the fused cast AZS is light yellow or white.
|Color||Iron valence||Residual carbon content %/Mass||Oxidizing degree|
Zhengzhou Sunrise is a refractory material supplier from China, offering high quality refractory materials for glass furnaces, including fused cast AZS block, fused cast alumina block, fused cast high zirconia block, mullite brick, zircon brick, alumina bubble brick, magnesia brick, sillimanite brick, corundum brick, low porosity fireclay brick, high alumina brick, all kinds of glass
The service life of the glass furnace, energy efficiency and the quality of glass is mainly up to refractory materials. The following practices can be performed in order to select the right refractory materials and ensure longer operating life of the glass furnace.
The quality of the refractories needs to be consistent and assured. Refractories should be bought from reliable manufacturers. Normally, reliable manufacturers can develop the correct physical properties of the refractories such as high temperature strength and correct mineral structure. Once these desired properties are achieved, the performance of the refractories will be predictable and better.
The use of larger refractory blocks reduces the number of joints while constructing a furnace. Recently, large sidewall blocks made up of fused cast AZS are used in the glass furnace to reduce the joints and the corrosion of refractories. The manufacturing of large blocks requires a high-capacity press for developing uniform property characteristics. Hence, it is necessary to consider the dimensions of the block and its properties to ensure its suitability for a particular application. Further, random samples should be analyzed to make sure that its properties can meet the requirement of the operating environment.
Alumina (Al2O3) refractories are the part of alumina- silica group of refractories. They differs from fireclay refractories in term of Al2O3 content and normally have Al2O3 content of more than 45 %. The raw material base for these refractories are different than the fire clay bricks.
As the Al2O3 content is increased, the melting point of the refractory increases to a maximum of 2054℃ which is the melting point of pure corundum. Refractoriness increases with the increase in the Al2O3 content. The only stable compound in the system is mullite, which has a defective space lattice and decomposes into corundum and liquid phase at around 1840℃.
According to the Al2O3 content, alumina refractories can be divided into:
Fireclay belongs to this group. Its main crystal phases are mullite and glass. It can contain free SiO2. Normally it is made from 100% fireclay. High quality fireclay is used at about 1600℃, Usually it contain 38 % to 42 % Al2O3 and are based on fireclay minerals.
The main crystal phases of these refractories are mullite as major phase and glass as minor phase. They can contain free SiO2. These refractories cannot be made from 100 % clay since Al2O3 content of clay are lower. They are made from minerals containing 60% Al2O3 and contains some fireclay. They can be made with bauxite and clay and can be used for temperatures greater than 1700℃.
The major phase of these refractories is mullite. They contain corundum, mullite and glass. They are made either from bauxitic clay or calcined bauxite and clay. They can be used for temperatures greater than 1750℃.
These refractories are made from calcined bauxite. The main phases of these refractories are corundum as the major phase along with minor quantity of mullite and glass.
These refractories consist of corundum as the major phase with a minor amount of mullite and glass. Fused cast alumina block belongs to this group. It is used in contact with liquid steel or glass due to its enhanced abrasion resistance and corrosion resistance. When in contact with molten glass, it barely produces any blistering or stones. so it is ideal for the high quality glass furnace and special glass furnace.
The quality of fused cast AZS block is related to many factors such as the chemical composition of raw materials, the melting process, the casting process and the annealing process. One of the main quality problems of the fused cast AZS block is cracking.
Fused cast AZS block is mainly composed of baddeleyite, corundum, and a small amount of mullite, glass phase and pores. When the Al2O3 content of the raw materials exceeds 30%, the raw materials is difficult to melt and the cracking rate will increase. So before feeding the raw materials into the furnaces, the Al2O3 content must be measured to ensure it does not exceed 30%.
The way of feeding will directly affect the melting. Once feeding all the raw materials may cause incomplete melting and the products will be easy to crack. Feeding small quantities repeatedly is better.
If the melting temperature is too high or low, the cracking rate will increase too. Melting the raw materials at the melting temperature and then increasing the temperature can reduce the cracking rate.
In order to reduce the residual thermal stress and avoid crack, there should be a certain amount of glass phase in the fused cast AZS to absorb the thermal stress. However, the glass phase is the weak point for the corrosion resistance of fused cast AZS. During the corrosion process, the glass phase is exuded first and replaced with the high temperature molten glass. Bubbles are released accompanying the exudation of the glass phase and pollute the glass. Fused cast AZS block (33#, 36# and 41#) contains 14-20% glass phase, thus the glass phase content has a big effect on its quality.
During the casting process, if the casting temperature is too high, the shrinkage rate and the temperature difference between the inside and outside increase and the products are easy to crack. Before casting, stop heating for 3-5 minutes to cool the molten glass to the casting temperature and then cast, which can greatly reduce the cracking rate.
During the annealing and cooling process, the casting products should be put in the insulating box. The initial temperature should not be too low. Then cool the products slowly. The crack rate can be reduced.
Zhengzhou Sunrise is a refractory material supplier from China, offering high quality refractory materials for glass furnaces, including fused cast AZS block, fused cast alumina block, fused cast high zirconia block, mullite brick, zircon brick, alumina bubble brick, magnesia brick, sillimanite brick, corundum brick, low porosity fireclay brick, high alumina brick, all kinds of glass furnace ramming masses, etc