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In the intense market competition, enhancing professional knowledge is crucial for enterprises to win customer trust and expand their business reach. On March 7,Nolifrit conducted a highly valuable training session—a furnace knowledge seminar presented by experts from an enamel furnace factory, providing a "booster shot" for the business abilities of export trade salesmen.

The training began with a comprehensive introduction to the fundamental framework of furnace knowledge. Starting with the critical factor of product material—steel & cast iron—the trainers guided the salesmen to consider how to match materials and furnace types based on the actual needs of customers.

Next, regarding product dimensions, weight, and types, the trainers emphasized that understanding the customer's expected production volume and maximum product characteristics is key to developing a suitable furnace solution. It is particularly important to accurately grasp the specific dimensions, weight, and type of products in order to select the most suitable furnace.

The process requirements of Enamel Factories also influence furnace selection. Factors such as the number of enamel layers, whether to use electrostatic or wet methods, and whether to apply porcelain through dipping or spraying determine whether drying is necessary.

Choosing the type of energy source is equally critical. By comparing the advantages and disadvantages of electric heating versus natural gas heating.The trainers pointed out that electric heating allows for precise temperature control but incurs higher long-term costs, while natural gas requires substantial initial investment but is more economical for long-term use. Additionally, gas furnaces are better suited for large products, while electric furnaces are preferred for smaller items. This segment deepened participants' understanding of energy efficiency and cost control.

Regarding production requirements, the lecturer stressed the need to clarify the customer's production count per hour and provided examples of how to calculate the output of composite products, such as "1 set of pot + lid = 1 nos," ensuring that the plan meets actual needs.

In terms of furnace type selection, the application scenarios for hanging furnaces and roller furnaces vary: the former is primarily used for high-temperature rapid firing of steel enamel products, such as BBQ grills, while the latter is more suitable for low-temperature slow firing of cast iron pots. This distinction aids in providing highly customized furnace solutions for different customers.

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nolifrit

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How To Judge The Firing of Enamel Products?

The firing of enamel products is a very important part of the enamel process. During the firing process, the various firing technical parameters and operating points that the operators of the enamel factory must strictly follow, and strictly follow the reasonable process production and implementation, is conducive to improving the enamel production. product quality. So how to judge the time and firing effect of enamel products? The firing temperature of enamel products is set with a furnace temperature gauge, and the firing time is controlled by a stopwatch. After the firing, relevant instruments and equipment are used to detect the gloss or adhesion strength of enamel products to judge the firing quality of enamel products. If it is fired in a batch muffle furnace, it can generally be judged by visual inspection. Put the dry powder blank into the furnace, under the contrast of the bright red furnace wall, the powder blank shows a dark color, and when the temperature rises, it will turn into a light and color similar to the furnace wall, indicating that the temperature of the blank at this time is the same as the furnace wall. The temperature is close, but the internal temperature of the iron billet may not have reached it, and it will take a while to be fired. As for how long it takes to burn, it depends on the experience of the operator, which is related to the wall thickness and material of the enamel billet. If it is a continuous firing furnace, it is adjusted by setting the furnace temperature table and the linear speed of the transmission chain (or the speed of the driving wheel), and the temperature and speed are the product's adhesion, porcelain surface gloss and smoothness by the on-site technical supervisor. The casting adjustment is determined after multiple inspections such as the degree and so on.


What produces enamel?

The body when making teeth. Factories making iron bathtubs.


What are the causes and solutions of the enamel orange peel defect?

The orange peel-like irregular wrinkles on the surface of the porcelain enamel layer are called orange peel wrinkles (orange peel wrinkles). Orange peel wrinkles are a kind of defects on the enamel surface, which directly affect the appearance quality of enamel products. Smooth and smooth, no defects such as pores, de-porcelain, line spots and so on. There are many reasons for orange peel wrinkles, generally enamel frit or enamel slurry. If your product has orange peel wrinkles, it can be analyzed from the following reasons: The enamel frit used has high surface tension and high viscosity; The enamel frit slurry is stored for too long, and the coarse grains sink; The enamel slurry particles are too coarse and the enamel is too thick; The temperature of the enamel firing furnace is too high; Uneven dissolution during firing; Excessive air pressure during enamel spraying. When encountering orange peel wrinkles, it should be noted that the enamel slurry should not be stored for too long and the furnace temperature for firing the enamel cover coat should not be too high. If it is daily enamel, pay attention to the lower surface tension in the choice of cover coat.


What are the advantages of a gas enamel firing furnace?

Gas radiant tube enamel firing furnace gas burns liquefied petroleum gas, etc. At present, the gas fuel of gas enamel firing furnace on the market is mainly natural gas and liquefied petroleum gas. The main components of the fuel are methane, propane, butane, and also contain a small amount of ethylene, propylene, butylene, etc.; as long as the fuel is fully burned, the gas enamel firing furnace will have little pollution to the environment, and the waste heat can be recycled. Higher, easy to realize automatic control. Due to the relatively sufficient supply of gas fuel, relatively low energy prices, high calorific value, and relatively low comprehensive cost of energy consumption, gas-fired enamel furnaces are widely used by major enamel manufacturers. As a clean energy source, gaseous fuel has been widely used in various industries. Gas enamel firing furnace, as an enamel firing furnace powered by gas fuel, has many advantages: ①Energy saving and low energy consumption. Due to the sufficient supply of gas fuel energy, high calorific value of fuel and low unit price, the overall energy cost of gas enamel firing furnace is relatively low. ② High utilization rate of heat energy. The gas is completely burned, and the tail gas produced has a lot of heat. As long as the waste heat of the tail gas is used well, the heat energy can be fully utilized, and the utilization rate of heat energy can be maximized. ③ The temperature in the furnace is uniform. As long as the burners can be arranged reasonably, the uniformity of the furnace temperature can be fully guaranteed. ④ Little pollution. As long as the fuel is fully combusted, the environmental pollution is small. Because the electric power of the gas enamel firing furnace is small, it will not have an impact on the transformer current; but the gas fuel is prone to insufficient combustion due to insufficient oxygen supply or gas leakage due to various reasons. Therefore, the gas enamel firing furnace puts forward high requirements for the safety control of the equipment.


What are some examples of enamel products?

Enamel products include a variety of items such as cookware (like enamel-coated cast iron pots and pans), decorative art pieces (like enamel jewelry and wall plaques), and household items (like enamel mugs and bowls). Additionally, enamel is used in the automotive industry for coatings on car bodies and in electrical applications for insulating wires. Enamel's durability and aesthetic appeal make it a popular choice across different industries.


Where can one purchase Por15 enamel paint?

Por 15 sell their various enamel paints from their web site. There is the high temperature engine enamel, and other automotive single part and two part enamel top coats to choose from.


What is titanium cream enamel for enamel cups and enamel potsWhat is titanium cream enamel for enamel cups and enamel pots?

Enamel cups, enamel pots, enamel pots, etc., as daily enamels, need practical and beautiful attributes. Therefore, when enamel factories produce daily enamels, they must consider not only the quality requirements of the products, but also the appearance design, such as the color and decoration of the product. , which in turn cost extra. So how to achieve the effect of cost control under the premise of ensuring the beauty of the appearance? Titanium cream enamel is a good choice. Titanium cream cover cEnamel cups, enamel pots, enamel pots, etc., as daily enamels, need practical and beautiful attributes. Therefore, when enamel factories produce daily enamels, they must consider not only the quality requirements of the products, but also the appearance design, such as the color and decoration of the product. , which in turn cost extra. So how to achieve the effect of cost control under the premise of ensuring the beauty of the appearance? Titanium cream enamel is a good choice. Titanium cream cover coat fired with yellow enamel presents a light cream yellow color, no need to add other enamel pigments. This color is light and warm, which is very popular in the market. Even if it is the same titanium cream enamel, the enamel surface effect of different products is different. At the beginning of September, we received an order from a customer who wanted to order a titanium custard enamel for the production of daily enamel. After detailed communication with the customer, in order to better show the product effect, the Nuoli technical team proofed samples made of 3 different titanium cream yellow enamels. The difference is only in the color. Customers are satisfied with both of them, and the follow-up cooperation is still under negotiation.oat fired with yellow enamel presents a light cream yellow color, no need to add other enamel pigments. This color is light and warm, which is very popular in the market. Even if it is the same titanium cream enamel, the enamel surface effect of different products is different. At the beginning of September, we received an order from a customer who wanted to order a titanium custard enamel for the production of daily enamel. After detailed communication with the customer, in order to better show the product effect, the Nuoli technical team proofed samples made of 3 different titanium cream yellow enamels. The difference is only in the color. Customers are satisfied with both of them, and the follow-up cooperation is still under negotiation.


Dry and Wet Powder Enamel, Which Cost Higher?

What kind of production process is used in enamel directly determines the level and quality of the product. The enamel factory will choose the enamel process according to the metal type, shape, and volume quality of the green body. Generally, it is divided into two categories: wet enamel coating and dry enamel coating. So which one costs more, dry powder enamel or wet powder enamel? What are the advantages and disadvantages? How to choose an enamel factory? After reading this article, I believe you will have the answer. (1) Dry powder enamel Dry powder enamel is the abbreviation of electrostatic dry powder automatic adsorption process, also known as electrostatic enamel. The enamel powder is electrostatically sprayed, adsorbed on the metal surface, and then sintered at a high temperature above 800 °C, so that the expansion coefficient of the enamel powder and the steel plate can be nearly the same. The biggest advantage of dry electrostatic enamel coating is that the utilization rate of enamel can reach 97%~98%. The enamel dry powder can be used directly without grinding the enamel slurry. high. The service life of dry powder enamel is 2~3 times that of ordinary wet enamel, but the cost is also 2 times. The equipment of dry powder enamel is expensive and suitable for powerful enamel manufacturers. Dry powder enamel is a high-quality advanced process, generally used in enamel ovens, water heaters, microwave ovens, washing machines and other household appliances, and gradually extended to kitchen utensils and wall panels. (2) Wet enamel Enamel powder and other raw materials are ground into enamel slurry with water, and then enamel is applied to the surface of the casting and then sintered at high temperature. Because the liquid spraying process is not like electrostatic spraying, it is easy to flow unevenly, and it will cause enamel defects such as blasting in case of shocks. However, the investment in equipment is small, the price is cheap, and the production is simple. The enamel products made by this process are often used in enamel products such as daily necessities and decorations.


How To Solve Enamel Chipping-Off And Fish-Scale??

Enamel chipping-off and fish-scale are common defects of enamel products, which refer to the internal and external stress on the porcelain surface after the enamel products are fired. If the enamel finished product is de-ceramic, you can start to analyze it from the following reasons. (1) De-Porcelain: The enamel falls off Cause Analysis: Devitrification due to severe cracks; 2. The ground coat is too thin on the sides, handles, feet, and bottom, and the firing temperature is high; 3. The cover coat is too thick and the firing is insufficient. Solution: Appropriately increase the curvature radius of the side, handle, foot and bottom; 2. Adjust the bulk density of the enamel slurry to avoid local coating too thin or too thick. (2) Fish scale: The porcelain surface is scaly and loses the porcelain (some appear after firing, and some appear in a week or more) Reason analysis: 1. The content of C.S.P.Si in the thin steel plate is high; 2. The acid concentration is high, and the pickling time is long; 3. The clay is of poor quality and there are many impurities; 4. The furnace temperature is high, and the ground coat is partially scorched. Solution: 1. Choose a high-quality steel plate suitable for enamel; 2. The acid concentration should not be too high. The pickling time should be appropriate; 3. Choose high-quality clay; 4. Use hard and soft mixed primer. Grind and add about 10% calcined quartz, and the ground coat firing furnace temperature should not be too high to avoid local scorching.


What should enamel factories pay attention to when purchasing enamel frit?

Enamel frit has a great influence on the quality of enamel products, including acid resistance, alkali resistance, gloss, impact resistance and other physical and chemical properties of enamel finished products. Therefore, enamel manufacturers should pay special attention to the following three points when purchasing enamel frit: Compare the properties of the enamel. Different products have different quality requirements for enamel frit. First of all, according to the characteristics of their own products, understand the properties of enamel frit. For example, for enamel ground coat, consider whether the thickness of the ground coat is conducive to the discharge of gas; Whether the firing temperature of the ground coat is appropriate, and whether it can reduce the generation of gas during firing; the enamel cover coat should consider the opacity and have a good surface covering power; the surface tension and viscosity of the cover coat can ensure the formation of Smooth and smooth porcelain surface...and other properties such as acid and alkali resistance. Are there any mature formulas and technical solutions? The determination process of the enamel formula is very complicated. A set of mature formula needs to continuously carry out batching, melting, ball milling, and enamel tests, measure the performance test of each enamel, and continuously adjust the test, so as to finally achieve the target performance requirements. Therefore, if the enamel manufacturer chooses the enamel frit, the supplier can have the corresponding mature formula, on the one hand, it can ensure the qualified rate of the product and reduce the occurrence of defects, on the other hand, it also reduces the cost of the enamel manufacturer and reduces the process. Sample test. When purchasing enamel frit, the enamel factory fully communicates with the supplier in advance. If there is a favorite product, you can ask the other party to send a sample, and then place an order after passing the test, which can effectively avoid some unnecessary after-sales links and save costs.


Is there a spray on enamel for a bathtub?

Yes there are several varieties of spray on enamel. Most spray on products can be found at any hardware store or purchased online.


What is a low-temperature enamel coating?

For enamel manufacturers, temperature control has always been a key factor affecting product quality and production costs. Recently, Nolifrit launched a low-temperature, one-coat enamel coating designed specifically for porcelain enamel stove grates, successfully breaking the limitations of traditional high-temperature firing and bringing new production solutions to porcelain enamel manufacturers. This low-temperature enamel coating can be fired at 800℃, significantly reducing energy consumption and production costs compared to traditional high-temperature firing processes. At the same time, it can achieve a porcelain surface gloss of about 100, making the surface of the enamel stove grill smoother, more beautiful, and highly decorative and practical. More importantly, low-temperature firing does not compromise performance. On the contrary, this enamel coating maintains excellent gloss while demonstrating outstanding durability and corrosion resistance. It can maintain stable performance in the face of daily wear and high-temperature environments, ensuring the service life and safety of the enamel stove grill. For enamel product factories, the launch of this low-temperature enamel coating is undoubtedly a major benefit. Compared to traditional high-temperature enamel coating, low-temperature enamel coating reduces furnace energy consumption and reduces energy consumption during production, thus reducing production costs. Especially for new entrants to the enamel industry, the firing process of low-temperature enamel coating is simpler, reducing production processes. Furthermore, due to the low heat resistance requirements of low-temperature enamel coating for furnaces, enamel product factories do not need to invest heavily in high-performance furnaces, reducing equipment investment costs.