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The rheology of biobased white knife in molten state is better, and the influence of pressure on viscosity is greater than that of temperature, so the activity of melt is mainly changed from pressure. Plastic bottles have different states of use in different environments, so the rheology and viscosity are effectively controlled in the molten state of the plastic bottle. Next, let's take a look at the production process of biobased white knife.
1, plastic treatment
Because biobased white knife macromolecules contain lipid groups, with a certain hydrophilicity, the particles are more sensitive to water at high temperatures, when the water content exceeds the limit, the molecular weight of biobased white knife decreases in processing, and the products are colored and brittle. Therefore, the material must be dried before processing, and the drying temperature is 150 ° C for more than 4 hours, generally 170 ° C for 3-4 hours. The material can be checked by air fire to see if it is completely dry. When using materials, the raw materials should be dried to a certain extent, and different drying temperatures and time limits should be paid attention to to ensure that the plastic bottles produced have good product function.
2, injection molding machine selection
biobased white knife Because of the short time after the melting point is not chaotic, and the melting point is high, so the injection system with more temperature control sections and less self-friction heat generation during plasticization should be selected, and the actual weight of the product (water mouth material) can not be less than 2/3 of the machine injection amount.
3. Retention time
Do not use too long retention time to prevent molecular weight drop. Try to avoid temperatures above 300 ° C. If the shutdown is less than 15 minutes. Only air fire processing is required; If it is more than 15 minutes, it is necessary to clean with viscosity pe, and reduce the barrel temperature to pe temperature until it is turned on again. In the detention time of plastic bottles should be strictly controlled, different temperatures need to be treated differently, and the time limit should be strictly grasped.
4. Pay attention
The recycled material can not be too large, otherwise it is easy to produce the "bridge" at the bottom of the material and affect the plasticization, in the recycling of plastics, strictly control the number of recycled materials to ensure the plasticization quality of plastics. If the mold temperature control is not good or the material temperature control is improper, it is easy to produce "white fog" and opaque. It is necessary to strictly control the mold temperature, otherwise there will be events that you do not want to see, the mold temperature is low and average, the cooling speed is fast, and the product is transparent with less crystallization.
5. Mold and gate design
biobased white knife embryo is generally molded with hot runner mold, and it is best to have a heat shield between the mold and the injection molding machine template, the thickness of which is about 12mm, and the heat shield must be able to withstand high pressure. The exhaust must be sufficient to avoid local overheating or fragmentation, but the depth of the exhaust port is generally not more than 0.03mm, otherwise it will easily produce a flash. The production process of biobased white knife requires strict quality system maintenance to ensure that the plastic bottles produced have good product quality and assurance. The production process is complex and requires strict control of different production processes to ensure that each process is carried out in strict accordance with the scale.
biobased white knife https://www.plasticsproduct.com/Biobased-Heavy-Duty-Knife-184mm.html
biobased fruit forks are ubiquitous in our daily lives, but do you know some common problems with biobased fruit forks in production use? Let's take a look at the common problems with biobased fruit forks.
1, because most plastics have notch sensitivity, biobased fruit fork at the sharp corner, the root of the mouth thread, neck and other parts, easy to produce cracks and cracking phenomenon, so these parts should be designed as rounded corners. For the transfer of rectangular biobased fruit fork, most of the load of biobased fruit fork needs to be supported, so locally increasing the wall thickness of the biobased fruit fork is also conducive to improving the stiffness and load-bearing strength of the Biobased fruit fork.
2, in the design of extrusion biobased fruit fork, if the material is high-density polyethylene or polypropylene, the cross section of biobased fruit fork should be rectangular or oval, for the material is low density polyethylene or other flexible biobased fruit fork, Its cross section is better to be circular. This allows the contents to be extruded from the biobased fruit fork. The plastic parts used with biobased fruit fork mouth are mainly bottle caps and sealers. The design of biobased fruit fork mouth should focus on how to make the food plastic bottle mouth better fit with the lid and seal. The bottom of biobased fruit fork is the weak part of biobased fruit fork's mechanical properties. Therefore, the bottom of biobased fruit fork is generally designed to be concave; The corners of biobased fruit fork and the inner recesses are made with large circular arc. In order to facilitate the stacking of biobased fruit fork and increase the stacking stability of biobased fruit fork, internal grooves should be designed at the bottom of biobased fruit fork.
3, when the surface of biobased fruit fork is labeled, the surface of the label should be smooth. A "frame" can be designed on the surface of the biobased fruit fork so that the label is accurately positioned without movement. In blow molding, the first part of the billet blown contact, always tend to be the first hardening part. So the wall thickness there is also larger. The edge and the corner part are the last contact parts of the billet blowing, and the wall thickness of this part is small. Therefore, the edges and corners of biobased fruit fork should be designed with rounded corners. The stiffness and bending resistance of biobased fruit fork can be improved by changing the surface shape of biobased fruit fork, for example, the middle of biobased fruit fork is relatively thin, and increasing the circumferential grooves or convex ribs on the surface of biobased fruit fork. Longitudinal grooves or stiffening bars can eliminate the deviation, droop or deformation of the biobased fruit fork under long-term load.
4, the printed surface of biobased fruit fork is the most concentrated part of consumer attention. The printing surface should be smooth and continuous; If biobased fruit fork contains handles, grooves, reinforcing bars and other structures, the design should be careful not to cause inconvenience to the printing operation. Elliptical biobased fruit fork, the rigidity is also higher, but the manufacturing cost of the mold is higher. Therefore, in order to ensure the stiffness of biobased fruit fork, in addition to selecting materials with high stiffness, the stiffness and load-bearing strength of biobased fruit fork should be enhanced through the shape design of biobased fruit fork.
In the process of producing biobased fruit fork, pay attention to these common problems, you can make the production of biobased fruit fork more comfortable.
biobased fruit fork https://www.plasticsproduct.com/DisposableCutleries
The selection and use of materials is one of the important links of packaging design, which is directly related to the quality and effect of product packaging. Reasonable selection of paper materials, and master the use of skills, can improve the visual appeal of packaging, protection performance and user experience. This paper will discuss the selection and use of lift-up flaps book materials from the aspects of paper material selection, paper characteristics, printing technology and so on.
First, paper material selection
Wear resistance: The wrapping paper material needs to have a certain amount of wear resistance, which can protect the product from damage during transportation and use. Common paper materials with good wear resistance include kraft paper and corrugated paper.
Strength and hardness: The strength and hardness of the packaging material determine the carrying capacity and compressive capacity of the packaging. For products with large load-bearing capacity, thicker and stronger paper materials, such as corrugated cardboard, should be selected.
Paper color: The color of the paper directly affects the printing effect and product image. In general, white paper is suitable for most products and can show the bright color of the product. In addition, you can also choose a special color paper that is coordinated with the product to enhance the uniqueness of the product.
Surface treatment: The surface treatment of the wrapping paper material can improve the hardness, gloss and anti-pollution properties of the paper. Common surface treatment methods include coating, laminating and hot stamping. According to the needs of the product, choosing the appropriate surface treatment can improve the texture and quality of the packaging.
Environmental protection: In the process of paper material selection, the environmental protection of paper needs to be considered. Choosing renewable and degradable paper materials that meet environmental standards can reduce the negative impact on the environment and enhance the brand image.
Second, paper characteristics
Paper gloss: The gloss of the paper determines the appearance of the printed matter, which is divided into high gloss paper, matte paper and matt paper. Highlighter paper is usually used to print color pictures and can show bright colors; Matte paper is suitable for printing text and patterns, which can increase the comfort of reading; Matte paper is often used to print black and white patterns and text, which can provide a better reading experience.
Ink absorption of paper: The ink absorption of paper affects the printing effect of printed matter. Choosing a paper with good ink absorption can enhance the saturation and clarity of the color and improve the printing effect.
Paper thickness: The thickness of the paper determines the strength and carrying capacity of the package. Choose the right paper thickness according to the weight and size of the product to ensure the stability and protection of the packaging.
Paper moisture content: The moisture content of paper has a great impact on the quality and stability of printed matter. Paper moisture content is too high or too low will cause the print deformation, wrinkles or discoloration. In the printing process, the appropriate moisture content of the paper should be maintained to obtain good printing results.
Three, printing technology
Printing method: Select the appropriate printing method according to the packaging design and printing needs, such as offset printing, letterpress printing, screen printing, etc. Offset printing is often used to print large areas of flat patterns and text; Letterpress is suitable for printing three-dimensional patterns and text; Screen printing can be printed on surfaces of various materials.
Printing color: According to the requirements of the product and design style, choose the appropriate printing color. Common printing colors are monochrome, two-color and full-color. Monochrome for black and white printing and simple design; Two colors are suitable for colorful designs; Full color can show more layers of color, suitable for the need to highly restore the true color design.
Post-printing treatment: Post-printing treatment can increase the texture and quality of the package. The common post-printing treatment methods are hot stamping, embossing, glue and so on. Through the rational use of these techniques, the packaging can be made more unique and attractive.
lift-up flaps book https://www.thpkgg.com/Lift-up-flaps-book.html
In today's competitive market environment, the image of a product is crucial to the success of a business. custom lift-up flaps book, as an important means of publicity, can enhance the image of the product and attract the attention of consumers. So, how to effectively use custom lift-up flaps book to enhance the image of your product?
First of all, packaging design is the key to enhance product image. A good packaging design can make the product stand out among many competitors and attract the attention of consumers. Packaging design needs to be created according to the characteristics, positioning and target audience of the product. The packaging design should conform to the style and brand image of the product, and create a distinctive packaging image through beautiful, unique and creative design, so as to attract the interest of consumers.
Secondly, the quality of the custom lift-up flaps book is crucial to the enhancement of the product image. Whether it is the choice of packaging materials, or the fine printing process, it directly affects the shaping of product image. In order to enhance the image of the product, enterprises should choose high-quality packaging materials to ensure the texture and appearance of the product packaging. At the same time, the fine degree of the printing process is also an important factor to enhance the image of the product, printing can choose high-definition printing technology, so that the graphic information on the packaging is clearer and clearer, increase the attractiveness of the product and the sense of grade.
Thirdly, the innovative and personalized customization of custom lift-up flaps book is also an effective means to enhance the product image. In the market, the homogenization of products is more serious, and enterprises need to distinguish themselves from competitors through the innovation of custom lift-up flaps book. By adding creative elements to the packaging design, showing the characteristics and advantages of the product, highlighting the uniqueness of the product, you can attract the attention of consumers, and increase the competitiveness of the product. In addition, the custom lift-up flaps book is also an important way to enhance the product image. According to different consumer needs and preferences, customized packaging design, so that consumers feel valued and cared about, enhance the added value and image of the product.
In addition, the text information in the custom lift-up flaps book is also key to enhancing the product image. Text information is an important content of product communication, which can convey important information such as product characteristics and functions. The text information on the package should be concise and clear, with the ability to attract consumers. A simple and attractive tagline or slogan can get consumers interested in the product and increase their desire to buy it. At the same time, the text information should be consistent with the style and positioning of the product, through the choice of words and layout design, so that the overall custom lift-up flaps book is more unified and reasonable.
custom lift-up flaps book, while enhancing the product image, should also comply with laws and regulations and environmental requirements. In the process of custom lift-up flaps book, enterprises should rationally use and choose environmentally friendly materials to reduce pollution to the environment. In addition, attention should be paid to the information security and authenticity of custom lift-up flaps book to avoid false publicity and misleading consumer behavior. custom lift-up flaps book can increase the trust of consumers and enhance the reliability and credibility of the product image.
In summary, custom lift-up flaps book is one of the important means to enhance the product image. Through good packaging design, high-quality printing process, innovative and personalized elements, as well as accurate and attractive text information, you can effectively enhance the image of the product and attract the attention of consumers. But at the same time, the custom lift-up flaps book should comply with laws and regulations and environmental protection requirements, pay attention to information security and authenticity, and safeguard the rights and interests of consumers. Only by considering these aspects comprehensively, can we better enhance the product image and enhance the competitiveness of enterprises.
custom lift-up flaps book https://www.thpkgg.com/Lift-up-flaps-book.html
What spindle does the rotary table intelligent assembly machine use? The spindle is the main part of a CNC lathe, so what spindle is used by rotary table intelligent assembly machine, today we will talk about the rotary table intelligent assembly machine spindle.
Main transmission form: three-speed mechanical transmission, frequency conversion in the gear stepless adjustment;
Spindle speed range: 50 -- 1500
Spindle end structure: C8
Main shaft hole diameter: 82 (standard) /104 (custom)
Front taper of main shaft hole: 1:20
Main motor model: YVP160M-4-7.5KW
Maintenance and maintenance of spindle components
The main shaft component is an important part of the CNC machine tool, which is mainly composed of the main shaft, bearing, spindle stop device, automatic clamping and chip removal device.
The lubrication, cooling and sealing of the spindle parts of CNC machine tools are important problems in the process of machine tool use and maintenance.
First of all, good lubrication and effect can reduce the working temperature and extend the service life of the bearing. Therefore, in operation and use should pay attention to: at low speed, use grease and oil for circulation lubrication; High speed oil mist and oil lubrication. However, when using grease lubrication, the sealing amount of the spindle bearing is usually 10% of the volume of the bearing space, and it is strictly prohibited to fill it at will, because too much grease will aggravate the heat of the spindle. Oil circulation lubrication, check the spindle lubricating constant temperature tank every day to see if the oil is sufficient. If the amount of oil is insufficient, add lubricating oil in time. At the same time, pay attention to check whether the temperature range of the lubricating oil is appropriate.
In order to ensure the good lubrication of the spindle, reduce friction and heat, while taking away the heat of the spindle assembly, the circulation lubrication system is usually used, and the oil temperature controller controls the oil temperature in the tank. The spindle bearing of the high-end CNC machine tool is lubricated by the high-grade grease reservoir, which can be used for 7 to 10 years each time the grease is added. The new lubrication and cooling method not only reduces the temperature rise of the bearing, but also reduces the temperature difference between the inner and outer rings of the bearing to ensure that the thermal deformation of the spindle is small.
There are two common methods of spindle lubrication. Oil and gas lubrication is similar to oil mist lubrication, but oil mist lubrication is a continuous supply of oil mist, and oil and gas lubrication is a regular quantitative oil mist into the bearing gap, which not only realizes oil mist lubrication, but also avoids excessive oil mist pollution to the surrounding air. Spray lubrication method is to spray a large flow of constant temperature oil (3 to 4 L/min per bearing) to the main shaft bearing for lubrication and cooling. Here, the large flow of injected oil must be forced out by the pump, rather than natural backflow. At the same time, a special large-capacity, high-precision constant temperature tank should be used, and the oil temperature change should be controlled at 0.5.
Secondly, the cooling of the spindle components is mainly to reduce the bearing heat and effectively control the heat source.
Third, the sealing of the spindle components should not only prevent dust, debris and cutting fluid from entering the spindle components, but also prevent oil leakage. The sealing of spindle components includes contact sealing and non-contact sealing. For the contact seal of the linoleum ring and the oil-resistant rubber seal ring, pay attention to check its aging and damage; For non-contact seals, in order to prevent leakage, it is important to ensure that the return oil can be discharged as soon as possible and the return oil hole is smooth.
rotary table intelligent assembly machine https://www.zjshuangzheng.com/Rotary-Table-Intelligent-Assembly-Machine.html
