Chassis armor construction, the material process is the key; currently the ordinary chassis seal plastic processing generally only uses a single flexible resin material or asphalt material. 3M professional chassis armor material is composed of four products with different characteristics. It adopts a multi-layer spray coating method to achieve the protection of multiple functions; it has high adhesion, high wear resistance, and good impact resistance (high elasticity ), anti-corrosion corrosion, noise reduction integrated functions. In terms of construction, the chassis armor is also particular. Regardless of new cars and old cars, you must first fully inspect the condition of the chassis, clean the dirt, rust, and grease; dry the chassis with compressed air; do a good job of masking the body, shielding parts: exhaust pipes, brake drums, brakes, shock absorbers, fuel tanks Piping, engine bottom, removable bolts, 4WD rear axle bolts. Then start the spraying process. When it comes to spraying, it is the most critical. The nozzle of the gun should be kept at a distance of about 25 cm from the construction surface of the chassis. It should be moved at a uniform speed to ensure evenness of the sprayed layer. According to the selected process, sprayed with highly absorbent, high-strength, high-abrasion materials one by one. The entire chassis was sprayed 4 to 12 times, with each drying interval between 15 and 30 minutes. After spraying, the next step is to remove the hiding. After chassis armored construction, driving safety and comfort can be improved and the comprehensive functions of the car can be fully reflected.
Definition of Blow molding
Blow molding is a common process for production of hollow containers, ranging from commodity products such as soda or water bottles to highly engineered products such as gas tanks and electrical enclosures. The two most common types of blow molding are extrusion blow molding and injection blow molding with many variants related to handling of the parison and molds.
Blow molding processes:
Three main types of blow molding
l Extrusion Blow Molding
u Take melted plastic
u Extrude the parison with compressed air into the mold
u Features two variations: continuous and intermittent
l Blow Molding
u Produce small medica and single-serve bottles
u Large quantities of hollow glass and plastic objects
u Via pin to blow air into mold to inflate and cool the product
u Restriction on the bottle design, only allowing a champagne base to be made for carbonated bottles.
Injection stretch molding
Injection stretch molding is suitable for cylindrical, rectangular, or oval bottles and has two different main methods, notably the single-stage and two-stage processes
With the single-stage method,
the same machine is used to both preform manufacture and bottles blow the object. This method is highly suitable for low volumes and short runs
In the case of the two-stage process,
the plastic is first molded into a [preform" using the Injection Molding process. The [preforms" are then packaged and fed after cooling into a reheat stretch blow molding machine. While a high capital cost and a large floor footprint are necessary, injection stretch molding can produce very high volumes and feature minimal restrictions on bottle design. The bottles can also be a completed item for a third party to blow
Materials: PE, PVC, PC, PP, PS
Applications:
l To produce bottle-shaped, hollow thin-wall molding products and bulky products, such as seasoning, water bottles, cleaning agents, shampoo and other packaging supplies
l And produce trash cans, gasoline cans, and even the capacity of up to a ton of chemical barrels and fishing products transport boxes
Advantages
l Thin wall forming products, materials and cost saving
l Low cost of mold, rich mold materials
l Can produce large, complex shape hollow products
Disadvantages
l Low dimensional accuracy
l Thickness of the forming product wall is difficult to control and easy to have uneven problem
l Product surface is prone to flow marks, rough but not delicate
Injection Blow Moulding,Injection Blow Moulding Machine,Plastic Injection Blow Molding Machine,Blow Molding Injection Molding Suzhou FCE precision electronics Co., LTD , https://www.fukeyifcesz.com
How to identify the advantages and disadvantages of chassis protection
In rainy and humid climates, the chassis of your car is the most vulnerable to rain and rust. Most car owners have some understanding of the car chassis protection, but how to choose a chassis armored construction shop, how to identify the quality of the construction is the issue that the majority of car owners are very concerned about.