Question 2 Product: Car Bumper Factors: Cost, waste, most straight forward process, A bumper is manufactured using compression moulding. Compression moulding is ideal when manufacturing products of larger size thus being perfect for something like a bumper. While it has low initial cost, when moulding there will only be little waste. This refers to moulding defects such as flash, these defects are reduced because the material is preheated and also the right amount of material needed can be measured. Apart from saving money due to the fact that no workers will be needed to carry out that job, this in itself is also saving more money due to the decrease in the amount of material needed for the process to be carried out. In general, compression …show more content…
Molten plastic passes through the manifold through the nozzles which fill part of the cavities. Since this system eliminates runners completely recycling and regrinding do not affect the cycle. The 2 main types of hot runner systems are internally heated systems, which give better flow control and externally heated systems which suited to polymers with sensitive thermal variations. The cost for such a system may be an expensive capital investment, however it is more cost efficient and in the long run costs are kept to the least possible. This is because of resin savings (resin consumption is lowered due to no cold runner), energy savings (due to plasticising, cooling and regrinding in cold runner mould), labour savings (due to no re-grinding and trimming), mould cost saving (since it runs faster than a cold runner system, a smaller mould may be used to produce the same amount of production) and injection press costs (due to the runner being already hot and thus no heat will be lost). Moulding defects include 1) Blisters - can be avoided by having the temperature near the gate not too high and by regulating the speed of flow into the
This requires the engine to have a state-of-the-art coolant system. Big tunnels through the perimeter of the engine allows coolant to flow all around the motor at all times and keep the engine cool. The radiator is also much thicker from the factory, and is angled at 45 degrees in the engine bay to maximize air flow. The number one reason why these engines stop functioning is due to a problem with the coolant system.
Riordan Manufacturing Inc. is in the field of plastic injection molding. A leader in plastics designs in many different areas, with state of the art capabilities in developing innovative products for their customers. The company was founded by Dr. Riordan, a professor of chemistry, working with processing polymers into high strength plastic articles. Dr. Riordan obtained patents and licensing to start manufacturing plastic fans in the plant at Pontiac, Michigan in 1992. This summary will cover Riordan’s mission, the four plant description, and the companies finance and accounting.
Write a differential in this case and explain how each item in your differential fits and how it might not fit.
Milling offers the advantages of being highly precise and having much smoother surface finish (surface roughness of easily around 1 µm ) compared to powder bed fusion additive manufacturing (layer thickness in the range of 20 µm and above; surface roughness of 15 µm and above ). Flat surfaces and sharp corners can be obtained with CNC milling. Similarly, features such as threads and holes are more accurately created through
...enters in the pervaporation membrane unit in which a membrane is employed for separation. Only the refrigerant is passed through the membrane and collected on the other side. Vacuum is created at the downstream of the membrane. The refrigerant is condensed and throttled to the evaporator to produce cooling and then is absorbed in the absorber and the cycle repeats. The schematic diagram of this cycle is shown in Figure 8. The COP of the cycle utilizing pervaporation membrane process for vapour desorption is low as compared to conventional absorption systems as pervaporation process requires very high solution feed flow rate. The authors obtained a COP of 0.06 for their prototype working on the pervaporation membrane principle, they argued that the low COP is due to the high circulation ratio as high feed flow rate is required to operate such pilot membrane module.
Facts: D was stopped for a faulty brake light. Ds boyfriend had a syringe in his shirt pocket. WHen questioned about it, the boyfriend admitted that he uses it to take drugs. the officer asked for identification which the D falsely identified herself and stated that she did not have any id on her. Because of the bf’s admission of using the syringe for drugs the police searched the car for illegal drug possessions. In the backseat the officer found Ds purse in the backseat. The id in her purse correctly identified her. the officer also founf a brown puch and a wallet container. D admitted to owning the wallet container which had a syringe used for drugs and drug contraband. there was very little drugs for a felony conviction. The officer found
The company LEGO has been around since 1949 (Wiki), and has created a dominate market for plastic blocks used by kids of all ages, but has been losing interest in children since then. So LEGO and 360PR had an idea to reestablish themselves as a brand with the youth by encouraging parents to force them on their kids. The campaign was called Builders of tomorrow. After doing research among parents, and how they get info about parenting tips, LEGO implemented their dialogue to parents through a website. The website featured stories about builders of tomorrow, using accomplished famous people telling their childhood stories involving LEGOs in their childhood. The website featured
Is one of your car panels dented? You may be tempted to repair it on your own so that the panel looks flawless once again. Here are some tips for fixing a dented panel on your car.
At first, the swelling of the feet and that of the ankles appear which gradually progresses with the period of time. In a worst case scenario in long term swelling of the feet, usually causes pitting which occurs while pressing the affected area for few seconds. This may also lead to indentation. However it is observed that continued swelling of th...
Extrusion produces material such as pipe or tubing, weather-stripping, fencing, plastic films and sheeting, deck railings, window frames, thermoplastic-coatings, and wire insulation. In the plastics extrusion, the raw compound material is usually in the form of nurdles, small beads which often called resin, that are gravity fed into a top mounted hopper then into the barrel of the extruder. Additives like colorants and U.V. inhibitors (liquid/pellet form) are often used and which then can be mixed into the resin precede to arrive at the hopper. The process has very much in common with plastics injection molding from a point of the extruder technology though it may differs in that as it is usually a continuous process. While pultrusion be capable of offering many same profiles in continuous lengths which comes usually with added reinforcing, this is achieved with pulling the finished result out of the die instead of extruding a typical polymer melt through the die. A large number of polymers are used in the production of pipes, rods, rails, plastic tubing, seals, and sheets or films. For example, ABS, HIPS
Pinch technology is the technology that provides a systematic methodology for energy saving in processes and total sites. The methodology is based upon first low and second low of thermodynamic. Applying Pinch technology to heat exchanger network HEN synthesis.
controlled and varied by the extruder output. A vacuum sizing tank also be often used as
Lubricant is constantly circulated to and from a cooler part of the system, although lubricants may be used to warm as well as to cool when a regulated temperature is required. This circulating flow also determines the amount of heat that is carried away in any given unit of time. High flow systems can carry away a lot of heat and have the additional benefit of reducing the thermal stress on the
Car accidents are quite common in Chester, SC. Sometimes, these accidents are minor fender benders but in other cases, they can be serious and cause serious and life-threatening injuries. Car accidents involve people of all ages and genders and can occur at any time. The question is: if you are in a car accident, which party will pay for the damages that are incurred?
Automotive industry began in the 1890s in the United States. As a result of the domestic market size and the use of mass-production, the industry grew so quick into the largest in the world. The United states is the second largest automobile manufacture in the world by volume with over eleven million manufactured in 2014 according to a survey conducted by Organisation Internationale des Constructeurs d 'Automobiles (OICA).