ZHangZhoug ZheJiang n copper pipeline Co., Ltd. was established in 1990,located in the Ruanshi Industrial Park in HangZhou, ZHangZhoug province. The 2 section of the company covers an area of 20000 kilo meters and more than 200 employees. After 28 years of unremitting efforts with higher standards, the company has transformed from the original family workshop to a modern scale enterprise. The product line extends from the single copper refrigeration parts to a number of thousands of products, covering refrigeration,heating,machine fittings, water pipe fittings and valves etc. And strive to open up new areas and new channels to achieve the vision of pipe fittings leading enterprises
The company has formed 5 series of products: Copper capillary series, Copper pressfit series, AC copper pipe fittings, Valve, cards and thread brass fittings. All the series of product not only to meet the customer’s requirements for the national standard CJ/T-2000, the British standard BS864-2, the American Standard ASME B16.22-1995, the European standard EN1254-2 , but also to accept all kinds of non – standard fittings based on the special needs.
The products of ZheJiang n pipeline are certified by ISO9001 international quality system certification and AS 3688 Australia standard. The production process of raw materials inspection, raw material processing, annealing process, product quality inspection and finished packaging are strictly carried out according to Australian standards. Under constant demands and improvements, ZheJiang n has achieved the forefront of the industry in the following aspects.
Rw material control. First, each batch of raw materials must be supplied with certificate of qualification and material element certificate. In accordance with the supplier’s material sheet, the material is promptly notified to the responsible personnel of the material inspection, and the sample is inspecting. the unqualified raw materials will not be accepted. Second, the raw material, due to the change of the internal crystal after the forging process, we will test the rough after the forging in the lab. Third, because of the special use requirements of some products, such as the sealing product and the pressfit product, third times of stress need to be carried out, so the material composition is tested for third times. To ensure that the raw materials of the final product are qualified.
Annealing process is a important step in the processing of products. Better annealing process can greatly improve the durability and safety of products. Our annealing process is carried out in strict accordance with Australian standards, and the products are annealed at stages. For example, the crystal will change and reorganize when the brass material is heated to a certain temperature, so the temperature control is critical, and the dezine resistance of the material can not be damaged. The DZR brass (Dezincification resistance of brass) exported to Australia is strictly implemented in accordance with the Australian standards. Our annealing process can greatly improve the corrosion resistance and dezine resistance of the products. The product meets the requirements of environmental protection, and can be widely used in various sanitary products and direct drinking water projects, so as to ensure the pure and CZPT of drinking water.
The quality control in the production process. First: the rough is checked by the inspector. The staff will measure the accuracy according to the drawing, and all the testing tools are imported from Australia. Second: inspectors carry out uninterrupted inspection of each product being produced. The packaging workshop tests the appearance and size of each product; third, the final product is checked, each product size must conform to the AS3688 drawing standard, and the quality inspection personnel record the product data of the test. In addition, for products that need to be tested for pressure, the inspectors will be CZPT to test the airtightness or water tightness of each product professionally to ensure that each product reaches the pressure standard.
Finally, in the packaging, especially in the export, we use a more solid packaging, we use small boxes to pack the products, and then put small boxes in large boxes, double packing to ensure the safety of the product, reduce the transport process damage to the product.
First – class technology, advanced technology, perfect production process, precision testing equipment, every employee is in harmony with each other to highlight the spirit of ZheJiang n. “Quality first, pragmatic and enterprising, user foremost, sincerity to heart” is our company’s purpose. Stable quality and reasonable price are deeply trusted by domestic and overseas customers in the long term development.We will continue to innovate, improve and treat our customers with greater care.
The attitude determines the height, the details determine the success or failure, the above is the summary of the high standard of our production process, not only in the process, in the enterprise staff management, equipment management, warehousing logistics, financial accounting, office environment and other aspects of the high standards of their own. With the continuous self demand and promotion, our product quality will also give customers the perfect use of experience, to help customers win honor and reputation in the market, to realize the vision of the leading enterprise in the field of pipeline fittings.
|Certain Using 1:||Refrigeration|
|Certain Using 2:||Copper Pipe Connection|
U-Joint Types and Their Functions
If your u joint squeaks, it is likely that it needs service. Professional service is important in order to prolong the life of your u joint. The following article will discuss the different types of u-joints and their functions. It will also discuss their cost. In addition, this article will cover how to properly clean and maintain your u joint.
When your U-joints begin to fail, you’re not only dealing with a very expensive repair bill, you’re putting yourself in danger. When you’re stuck in traffic, this can leave you with no control of your vehicle. Even worse, when the front part of your driveshaft comes loose, it can lift the rear end of the car and push it sideways. The good news is that most of the time, replacing U-joints is not expensive, but it’s still better to replace them when you can, and not wait until it fails.
The cost of replacing your U-joints depends on the type of parts you need and how long it takes to replace them. Most replacements cost less than $50, but the exact cost will vary depending on the model of your vehicle. You can find your exact replacement price by visiting an online catalog of automotive parts.
The most common sign that your U-joints need replacing is a clunking noise. This sound is caused by excessive play in the joint. It can occur during manual transmission gear shifts or during heavy acceleration or deceleration. A loose u-joint can cause the driveshaft or axle to go out of balance, and you may even hear the clunking noise inside the vehicle.
Aside from U-joints, constant-velocity joints (CV joints) are another type of connecting joint that are commonly found in automobiles. These types of joints are similar to U-joints, but they’re designed to compensate for changes in steering. In front-wheel drive vehicles, these joints provide the steering and suspension travel required by a vehicle. In addition, these joints are often lubricated from the factory to help prevent them from premature wear and tear.
U-joints are mechanical connectors that connect two axes or shafts. They are usually located on driveshafts or 4WD transfer cases and are very similar to axles with a ball joint. However, unlike a ball joint, a U-joint is constantly under immense pressure and friction and can wear out very quickly if not properly lubricated. These joints can also become damaged if they are placed at unusual angles or are abused. In order to know if a u-joint is about to fail, you should inspect it during every oil change or when the vehicle is serviced.
U-joints come in many different types. These include grooved and non-grooved types. The former feature grooves in the bottom of the bearing cup and snap rings on the inside. The latter two styles are similar to each other but are designed differently. You can tell which one is the best one for your needs by examining the bearing cup style on each end.
Universal joints are used on pickup trucks and other vehicles. They allow the driveshaft to move up and down without causing damage to the transmission and axle. They also help the vehicle ride smoothly on uneven roads. U-joints are a very important piece of auto suspension. Without these, the wheels of a truck or SUV would move around erratically and would not provide much wheel travel.
When measuring a U-joint, it’s important to determine whether it’s inside or outside locking. The inside locking type is able to be measured from the welded-in side while the outside lock type is only measured from the groove on the outside of the cap.
The U joint serves a purpose, but it can also be classified according to its size, shape, and other factors. Using these factors can help you choose the right joint for your application. In this article, we’ll talk about how each type of u joint works. Also, you’ll learn about how u joint sizes differ from one another.
Universal joints allow driveshafts and suspensions to move in tandem. This allows the driveshaft to move freely between stationary objects, which makes them indispensable for car suspension. Without u-joints, vehicles would be incapable of building suspension for wheel travel because the driveline would catch on potholes. Constant velocity joints are another type of joint found on FWD vehicles. These joints function similarly to universal joints, but they do not have the same mobility as a universal joint.
A car’s u joint can be expensive to replace. Its bearings are worn out and can cause excess vibration and an imbalance. A u joint may also need replacement if the transmission starts to break down. This will increase the overall u joint replacement cost. It’s essential to know how to spot a bad u joint and prevent it from causing further damage to your car.
The average cost of replacing a u-joint is about $260 for the parts and labor. However, prices will vary based on your location and vehicle model. You can look online for u-joint replacement prices in your area. The average price for a new universal joint is $260, but it can be as low as $235.
If you are looking to lower the cost of a new u-joint, you can try using used or remanufactured parts. Used u-joints will last longer and won’t have the same problems as a new one. In addition, remanufactured or secondhand parts are less expensive than new OEM parts.
While a new u-joint might only cost a few hundred dollars, professional auto laborers can perform the work for you for a couple hundred dollars. Using a shop that specializes in auto body work is an excellent option if you’re looking for a quick fix. While the labor costs are comparable, auto body shops offer other benefits. They are more efficient and offer a better value than dealerships.
A universal joint is made of cross-shaped casting that has short even-length arms. They usually feature needle bearings and a grease fitting for lubrication. The bearing cups fit into machined holes in a drive shaft or a component flange. The bearing cups are usually held in place by clips.
One of the most important steps in the maintenance of a U joint is to check for any loose parts, new leaks, and play in the joint. It is also important to clean the area around the U-joint to remove excess grease and other contaminants. You should also inspect the U-joint’s zerks for wear. Grease injected into the zerks should not be too thick or too thin, as it may mask the signs of excessive wear and tear.
Performing regular maintenance on u-joints will prolong their life. It is recommended to replace them after every five thousand miles, depending on how frequently the vehicle travels. While it is not necessary to replace the U-joint completely, it is essential to replace the worn or damaged yoke. This is because a worn-out u-joint will cause the driveshaft to become uneven, causing damage to other components. In addition, you should only replace worn or damaged u-joints with quality replacements.
One of the most common causes of U-joint failure is improper lubrication. Proper lubrication flushes can prevent slip and ensure proper operation. Proper lubrication flushes can also help clean out contaminants in bearing caps. Ensure that u-joints are properly lubricated at the recommended intervals.
When performing maintenance on u-joints, you should also check the vehicle’s weight capacity before performing any work. This label is usually located on the door jamb or inside the driver’s door. The vehicle must also be properly secured using wheel chocks.
When performing maintenance on a U-joint, you should inspect its slip spines and splines for wear. You should also check the bolt holes for wear and damage. You should check for rust, loose nuts, or other signs of wear and tear.
editor by CX 2023-04-23