Clean Room Pass Through Box,Modular Cleanroom,Air Shower For Clean Room Suppliers
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Kenmold is an ISO 9001-2008 and ISO 13485 certified custom manufacturer from Ningbo, China. We have 20+ years experience in tooling and plastics industry for USA and Europe markets. Our capabilities include: Precision mold design and building, MUD mold, Complex mold, Two Shot, double-color, Gas-assist, and Hot runner molds. The industries we server include: Automotive, Appliance, Consumer products, Electronics, Medical, Outdoor, Industrial. We set up our first USA office in 2007. Now we have two offices in Bowling Green, Ky and Phoenix, AZ with American professions hired to provide technical support to local customers. We partner with some local mold shops for mold service and repair. We warrant our tools. Interested? Contact us!
بازدید : 49 [ پنجشنبه 23 اسفند 1397 ] [ پنجشنبه 23 اسفند 1397 ]
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How to choose a polypropylene model ?
Although polyacrylamide is favored by everyone in sewage treatment, it is not a panacea, not a single model can solve all the problems, and different types and models of polyacrylamide are needed for different water quality of sewage.
Different enterprises of the nature of the wastewater is different, have plenty of acidic water, have plenty of alkaline water quality, and water quality is neutral, some containing oil, some contain lots of organic compounds, some color, some contain large amounts of sediment, there are all kinds of situation, foshan jianmei aluminum group is a large aluminum plant, the company to provide customers the anionic polyacrylamide have solved the problem of aluminum sewage, and get the customers satisfied with the products. So, how to choose the right polyacrylamide better and more reasonably?
Generally speaking, the treatment effect of cationic polyacrylamide is good for wastewater with acidic water quality, and anionic polyacrylamide is good for wastewater with alkaline water quality. Of course, the quality of neutral sewage shows relatively alkaline and acidic sewage is easy to treat. If the water quality of sewage is too acidic, it is generally difficult to treat. The usual practice is to add alkali into the sewage to adjust the ph of sewage so that the sewage reaches the best neutral level.
[ چهارشنبه 16 آبان 1397 ] [ چهارشنبه 16 آبان 1397 ]
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In order to make the coloring uniform and stable and control the color difference within a certain range to reduce the production of coloring defects, in the actual production process, the first step is to strengthen the control of anodizing process operation, and pay attention to the following aspects of the operation requirements.
1. When the anodized profile enters the coloring tank, it must maintain a large inclination and place in the middle of the two poles to ensure the equal distance between the left and right poles.Control on the tie material area at the same time, each hanging maximum total surface area of no more than 44 ㎡.
2. Check the concentration of tank fluid to ensure that it meets the technical requirements.
3. For electrification, the crane hook and the conductive beam hook must be separated, and the electrification can only be done after being left for 0.5 - 1 minute.
4. The coloring voltage of the same color must be equal, and the power supply voltage must be adjusted before coloring.
5. At the end of coloring, the crane must be lifted immediately, drain the liquid and transfer it to the water bath in the tank, and it shall not stay in the coloring tank. Strictly control the lifting time in the air, fully clean the acid in the internal hole of the profile before using the color board. When comparing colors, grasp the profile color slightly darker than the sample color. When the color is too light, put the coloring tank again to make up the color with electricity. When the color is too dark, put the coloring tank again (without electricity) or the acidic water tank behind the oxidation tank to fade.
6. Because golden color can not fade, so set coloring time should not be too long.
7. The colored profile should be washed out of acid water after secondary washing before electrophoretic or sealing treatment.
8. Strengthen the washing before dyeing. The workpiece should be fully rinsed after being taken out from the anodic oxidation tank. Especially in the slit and blind hole of the workpiece, otherwise the residual acid and alkali will flow out slowly during the dyeing process, so that the pH value of the dye solution will deviate from the normal range, and the color on the surface of the residual acid and alkali parts will be significantly different from the clean parts, or even corrode the oxide film to show white.
9. After anodizing, the workpiece should be dyed immediately after anodizing. If the workpiece is exposed to the air for too long after anodizing, the film will shrink and may be stained with dirt, which will lead to the difficulty of dyeing. If the dyeing tank is too small and needs to be dyed in batches, the dyeing parts should be soaked in clean water.
10. The workpiece shall not be overlapped during dyeing, and the workpiece shall not be overlapped during dyeing, especially in the plane part. Otherwise the overlap will be covered and the color will be different.
11. Strengthen the washing after dyeing. If the surface of the workpiece is not cleaned, the remaining pigment will contaminate the composition.
Related reading:Anodic Oxidation of Aluminium, Chemical Auxiliary Agent
[ پنجشنبه 03 آبان 1397 ] [ پنجشنبه 03 آبان 1397 ]
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There are a variety of surface modes of aluminum alloy profile. At present, more than the use of high-temperature wood grain transfer printing, spray oxidation, coating film and so on.Aluminum oxide coating can protect aluminum profile from corrosion, which is the main reason of corrosion resistance of aluminum alloy.
Now let's look at the methods of surface oxidation for aluminum alloy profiles!
I. Natural oxidation
Natural oxidation is to make aluminum alloy profile react with oxygen in the natural environment, forming a protective layer of aluminum oxide on the surface and continuing the reaction between the internal matrix and oxygen -- forming a transparent protective layer, namely an oxidation film.The naturally oxidized oxide film is not uniform, the color is not attractive, and the corrosion resistance is not strong, so few people use this method now.
II. Chemical oxidation
Chemical oxidation is the reaction of aluminum alloy profile after degreasing and deashing from the surface and putting it into oxidizing solution of oxidant and active agent to form a layer of artificial oxide film. The role of the active agent is to partially dissolve the oxide film in the process of formation, to produce pores, so that the oxidation continues, and the oxide film can be thickened.
There are many kinds of oxidation solutions, often with chromate as oxidant and carbonate as active agent. The advantages of chemical oxidation are easy to control and easy to operate, but the disadvantages are that the cost is high, which will cause environmental pollution, and the oxide film obtained by chemical oxidation is thin and the production capacity is low.
III. Anodic oxidation(Anodizing)
Anodic oxidation is to put aluminum profile into acidic electrolyte solution, as an anode, through the high voltage direct current, so that anions move towards the anode, and in the anode oxygen and anodic aluminum alloy production oxidation film. In the electrolyte, the acid can partially dissolve the oxide film and produce pores, so that the oxidation reaction can be further developed. This method makes the surface of aluminum to form a porous structure, which can be used for various coloring treatment, and can be used as a coating layer.
The advantages of anodizing are the thickness of oxide film, more corrosion resistance, better grade, and can be processed in batches. At present, many aluminum alloy enterprises and aluminum door and window accessories enterprises are keen on anodizing.
Related reading:Aluminium Anti Corrosion Treatment, Anodized Sealing Agent
[ چهارشنبه 02 آبان 1397 ] [ چهارشنبه 02 آبان 1397 ]
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Drip Coffee Makers Offer Both Convenience and Efficient Brewing
If you are an avid consumer of coffee, or even if you aren't, you are most likely very familiar with drip coffee brewers. These basic and world-renown coffee brewers are found everywhere from the average home kitchen, to restaurants, offices, and convenience stores.
Drip coffee brewers are popular due to their ease of use and affordable pricing. The process is quite simple: Fill a filter with ground coffee, fill the brewer's reservoir with the appropriate amount of water, place the coffee pot under the filter, hit the brew button, and you have yourself a fresh pot of hot brewed coffee in as little as three minutes.
Also drip have below advantage:
Easy Set-up
Easy to Maintain
Maximum Control of Flavor and Strength
Simple, Artisanal Brewing Made Easy
Related reading:Coffee Packaging Machine,Coffee Packing Machine,Coffee Bag Packaging Machine. more information,pls contact fellow: Attn: Shirley Cai Phone:+86-13779922513(Whatsapp/Wechat) Email:sales@sengongpack.com Website:www.sengongpack.com Facebook: shirley.cai.75839 Twitter:@shirleycai6
[ جمعه 09 شهریور 1397 ] [ جمعه 09 شهریور 1397 ]
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Removal of Branding Imagery from Cigarette Packets
Related Reading: High Efficiency Packaging Machinery, Tobacco Packaging Machine, Filter Rod Manufacturing Machine
بازدید : 149 [ پنجشنبه 12 فروردین 1395 ] [ پنجشنبه 12 فروردین 1395 ]
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In the aspect of emergencies, water has an important role especially in tackling fire. This has been the most traditional way of putting out fire. In fact, since it has been very effective certain devices have been made to make it more effective. One of which is the evolution of Water Spray Extinguishing Systems. It is actually more convenient to fight small fires using this device rather than trying to throw a pail of water. It is faster and all you have to do is to spray the nozzle on the base of the fire. Although it is traditional medium for fire fighting, using this device is most advisable in flames caused by ordinary materials like pile of papers or even a burning wood. It is also safe to use on human body when it catches fire but it all depends on the additives incorporated. Additives in here help put out fire in the process of saponification, which means to coat fire with soapy solution. At most times, it is safe but careful administration should be practiced because the contents of these devices are highly pressurized. How do you identify this kind of Horizontal Foam Chamber? Different countries have different ways of labeling their fire equipment. In United States, this kind of device is labeled with a triangle and is colored green. However, in Australia and Europe, they use a red band, which includes a numerical and alphabetical rating. The numerical part indicates the size of fire that it can extinguish while the alphabet is the indication of its class. A water fire extinguisher is usually a class A, which stands for the simple organic materials that can easily burn. There are other devices used to fight fire in case of emergency such as Flange Butterfly Valve and automatic sprinklers. They are usually embedded on the pipelines or part of the plumbing systems of many buildings and homes. Once an ample amount of heat and flame is recognized, it sprays water all over the place. This can help a lot when fire is spreading in the room. Having specialized in the water fire extinguishers trade for many years, winanfire provides reliable water spray extinguishing systems for you.
بازدید : 152 [ پنجشنبه 20 اسفند 1394 ] [ پنجشنبه 20 اسفند 1394 ]
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Either pharmacy or biological grade refrigerators/freezers are recommended for just these functions. All personnel using these units should be briefed on proper operating procedures including record keeping. All vaccines are not the same. For example the vaccine for the 2010 2011 flu season will be damaged by freezing, while others must be kept frozen from the time of manufacture to just prior to administering. Guidelines provided by California's Department of Public Health state that because manual defrost refrigerators have significant temperature variations, often freezing and damaging vaccines, they should not be used for vaccine storage. Instead specify auto defrost refrigerators. Conversely manual defrost units are preferable for vaccine freezers providing there is an alternate freezer to hold the vaccines while the primary freezer undergoes defrosting. Temperature control is critical and the correct storage temperature is provided by the vaccine supplier. Most vaccines should be refrigerated between 36 degrees and 46 degrees F year around, while freezers should maintain a temperature of 5 degrees F or below. Auto defrost refrigerators feature digital LED microprocessor controls with temperature displays and high low audible and visual alarms that signal if the unit operates outside preset temperature limits. Manual defrost laboratory freezers feature adjustable temperature control and offer an optional digital thermometer alarm. If a refrigerator or freezer does not have an external temperature display an NIST or ASTM certified thermometer should be placed centrally in the unit. Temperatures should be recorded at the beginning and end of the day. The size of the units should store the largest number of vaccine doses expected to be administered while allowing enough space to keep the vaccines 2 to 3 inches away from walls, floors and other materials inside. With the exception of other medications the units should not be used to refrigerate or freeze any other products. Glass doors allowing constant monitoring of contents, magnetic door gaskets for improved sealing and lockable doors for further product protection are desirable features. Before purchasing a new Power Saving Vaccine Refrigerator or vaccine freezer take the time to find space for it in your healthcare facility. Units should not be placed in areas where they receive direct sunlight, or under or near heating and air conditioning ducts. Units should have their own electrical outlet, preferably on its own circuit. Be sure to allow enough room for air to freely circulate above and around the unit. Steps should be in place to quickly relocate contents in the event of a power failure or unit malfunction. In summary, proper vaccine storage is critical in any healthcare facility for the protection of patients and protection of the vaccine inventory. Residential refrigerators and freezers are a poor substitute for scientific grade equipment designed especially for vaccines. More details at syroundfin. Related Reading: Carousel Tissue Processor, Paraffin Wax Dispenser
بازدید : 132 [ چهارشنبه 19 اسفند 1394 ] [ چهارشنبه 19 اسفند 1394 ]
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Garbage trucks are now an essential part of the modern civilization. One can see a number of refuse trucks running on the roads and streets in the late night or in the early morning. Trash trucks are the most important vehicles to keep our surroundings clean and healthy. Hook Arm Garbage Truck picks up the garbage from different parts of the city or town and off loads it in the garbage dumping grounds or waste management sites established for this purpose. There are a number of websites where you can collect useful information about these refuse trucks and used garbage trucks. With the increasing urbanization, generation of garbage from all the households has substantially increased. One can not imagine about clean and pollution free environment without the existence of these useful vehicles. Basically, there are five types of garbage trucks- front loaders, rear loaders, grapple truck, pneumatic collection and side loaders. These are used at different places according to the various types of job requirements. Initially, wagons and animals were used to carry away waste but with the passage of time and some technological advancement in the field of automotives, Aerial Working Platform Trucks with open tops were introduced in the year 1920. The trucks with their open type left a stinking air with their movement and the garbage was also seen to spill over. To overcome this problem, trucks with covered tops were made and used for this purpose. To begin with, these trucks were used first time in the densely populated countries of Europe and North America and subsequently in the rest part of the world. It was felt that it is quite a difficult task for the garbage collectors to lift the waste to the shoulder height and then put it into the Barrel Type Garbage Truck. To solve this problem, hopper model in the year 1929 was introduced which was based on the cable system to lift the garbage from the ground. In 1937, George Dempster came forward with a model in which waste containers with wheels were made to tip into the waste carrying vehicles. This model was known as dumpster. In the year 1938, with the introduction of the Garwood load packer, there was a revolutionary change in the field of garbage disposal vehicles. These load packers had the novel concept of compactors being attached to a garbage truck. With the use of a hydraulic press, the capacity of a waste truck was almost doubled. In the year 1955, the first front loader dumpster was launched in the market but these front loading vehicles were not more commonly seen till the year 1970. During the middle part of the 1970s, Peterson industries manufactured first ever grapple truck for disposal of garbage in municipal areas. In the year 1997, Lee Rathbun came forward with the rear steer system in a refuse truck. This system enabled the driver to drive and operate the loader simultaneously with the help of an elevated, rear facing cab. This increased the speed of garbage disposal in a considerable manner. More details at isuzutruckscn.
بازدید : 130 [ دوشنبه 17 اسفند 1394 ] [ دوشنبه 17 اسفند 1394 ]
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Maybe many people think that a lab refrigerator is just a larger version of the domestic refrigerator. But there is more to a lab freezer like Blood Bank Refrigerator than what a novice knows. Lab refrigerators are specifically designed to store critical materials over extended periods of time. The temperatures of these refrigerators is maintained and kept constant at all times so that the many specimens and samples that are kept in it can be preserved in a stable environment. There are mainly two types of lab refrigerators. One is called the chest freezer and the other called the upright freezer. The main difference between the two is the footprint space that they take. The upright refrigerator, in comparison to the chest refrigerators, has a far smaller footprint without having to compromise on the storage capacity. Chest refrigerators are also more effective in cooling and maintaining the temperatures by retaining the cool air in a more efficient manner than the upright refrigerator. These chest refrigerators also have the capacity of recovering and going back to the original regulated temperature even when the door of the freezer is kept open for longer durations. However, the biggest advantage that upright refrigerators have over chest refrigerators is that the samples kept in them are much easier to locate. Laboratory refrigerators work most efficiently when the temperature of the room in which they are kept is also regulated and maintained. Very high temperatures hamper the performance of the Glass Door Vaccine Refrigerator, and therefore it is best to keep them in rooms which have a temperature going up to a maximum of 45 degrees C. However, in high room temperatures the pressure on the freezer compressor is higher. Allowing proper air circulation is very important so that the refrigerators keep functioning well. Cramming the room with too many refrigerators will increase the heat emission from the refrigerators and increase the overall temperature of the room thereby putting pressure on the compressor. Lab refrigerators cannot be auto defrosted because this cycle normally destroys the biological samples as this method thaws and then re freezes the samples. Laboratory refrigerators are designed bearing in mind that a number of volatile or flammable objects will be stored in them. At times specially designed refrigerators are used just for the purpose of storing these samples. Such refrigerators are CFC free, have compressors that are thematically sealed and have an insulation that is foamed in place. The design of these refrigerators also allows them to tolerate explosions. What’s more, another aspect which is very important of the lab fridge is the alarm system. Most Laboratory Storage Fridge manufacturing companies install an alarm in the refrigerator that is programmed to go off the moment there is a change in the temperature or if the door to the freezer has been left open. A number of refrigerators are also being manufactured with alarm systems, password protection and temperature graphs that allow 24X7 monitoring. Since the advent of the computer fridges can be specially designed keeping in mind its functionality and requirements, making life in the lab a whole lot easier. If you have interested in this article, please click syroundfin.
بازدید : 117 [ دوشنبه 10 اسفند 1394 ] [ دوشنبه 10 اسفند 1394 ]
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