Valve guide sleeves. Brands of bronze.

Are you interested in the use of bronze for the manufacture of the valve guides from the supplier Alekhlas? Here you will find the necessary information on the topic.

General information

Bronze guide-liners were on the market for more than 40 years ago as a practical, accurate and effective method of repairing worn valve guides. The material properties combined with their unique design and manufacture, continues to provide exceptional performance in modern high-performance engines.

Valve guides are made of spring phosphor bronze. This material has extreme pressure, anti-wear properties and high strength ratio. It is more dense than cast iron, and has a higher rate of thermal conductivity and lower friction velocity. This provides effective cooling of the working node and reduce the cost of its maintenance.

In addition to the m arch of bronze, for durability is also the inner profile of the bushing and guides. Work better those products which have discontinuous spiral in the inner hole. This ensures that the oil is contained in the channel, helping improve the lubrication and wear characteristics, and reduces the possibility of excessive oil consumption.

Manufacturing technology

Virtually any cylinder head can benefit from the installation of the guide sleeves of bronze valve. This process includes the deployment of the original hole for the valve before installing thin wall bronze bushings. Then the sleeve exactly rastaquouere. This operation is performed in several stages, gradually increasing the size of the pilot hole as long as the valve will not be included in the guide. After calibration guide liner is clipped in accordance with the length of the original guide. Finally, the guide hole precisely honed to the required size and provides the best internal finish for oil retention.

Supplier — the company Alekhlas — offers to purchase assortimente a variety of bronze alloys domestic and foreign brands, which can be used for the manufacture of valve plugs and guides. Products can be purchased at a price formed on the basis of European and world standards. Possible, wholesale and retail, for regular customers a flexible system of discounts.

The effectiveness of the replacement material of bronze instead of cast iron

While maintaining the required values of the gaps, bronze guides significantly reduce the complexity of the repairs. Many engines have fixed valve guide in which the guide channel is processed through the head material of the head cylinder. These guides are «casting» easily repaired using the guide sleeve.

When modifying older engines to run on unleaded fuel may need to actually increase valve to guide clearances when using the original guide type of equipment to prevent jamming of the valves in the guides. This occurs when the natural lubricating properties present in leaded fuel are removed. Bronze bushings and liners to cope with this task better than cast iron.

A higher degree of accuracy in taper and roundness of the guide holes provide more precise machining of the valve seat, made of bronze, and improved sealing of the valve. Thus, a bronze material combined with the smaller gap allows for a better transfer heat from the valve, which leads to cooling and increased savings.

Supplier — the company Avecho offers various types of rolled bronze domestic and foreign production, intended for the manufacture of the valve guides. Products are offered at affordable prices from the manufacturer. Supplier guaranteed timely delivery at any address specified by the consumer.