Hongliang Boatbuilding
Hongliang Boatbuilding

CN

Hongliang

The company adheres to a business philosophy of surviving through quality, growing together with our customers, and winning the market through integrity. We always put customer interests first and strive for customer satisfaction, wholeheartedly providing high‑quality castings. With a scientific and sincere approach, we earn broad recognition from our clients and enjoy their strong approval and trust.

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Babbitt bearing bushing, finished product QPb25-5

Babbitt bearing bushing, finished product QPb25-5

The company is a manufacturer specializing in the production and processing of nonferrous metals, including copper and aluminum castings. It boasts comprehensive production equipment and strong manufacturing capabilities, with an annual output value of approximately RMB 40 million. The facility is equipped with a range of advanced machinery and testing instruments, such as medium-frequency induction furnaces, horizontal split‑mold core‑making machines, CNC lathes, Heraeus pre‑furnace analyzers, and Italian GNR spectrometers.

Keywords:

Marine industrial components | Defense industry components | Mechanical industry components | Mining industry components | Products from Japan’s Nippon Steel

Category:

Mining industry components

Product Inquiry:

+86-13485103748

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Product Details

QPb25-5 is a multi-component copper alloy with copper as the matrix, containing 25% lead and 5% tin. It is produced by centrifugal casting, resulting in a microstructure that features finely dispersed free‑lead phases and tin‑based solid‑solution strengthening phases. This alloy exhibits excellent friction‑reducing properties, anti‑seizure performance, and corrosion resistance. Under boundary lubrication conditions, the lead phase forms a microscopic lubricating film, significantly reducing the coefficient of friction and endowing the bearing liner with superior self‑lubrication and anti‑adhesion capabilities, making it particularly well suited for high‑speed, heavy‑load operating conditions in the chemical industry where stable oil films are difficult to establish. The addition of tin refines the grain structure, enhances the alloy’s strength and fatigue resistance, and effectively extends the service life of the bearing under cyclic loading. Moreover, this material demonstrates outstanding resistance to sulfuric acid, dilute hydrochloric acid, and a variety of organic solvents, providing long‑term protection against corrosive chemical media and ensuring dimensional accuracy and mating stability in pumps, compressors, agitators, and other chemical‑process equipment. It is precisely the synergistic effect of its wear resistance, corrosion resistance, thermal stability, and self‑lubricating characteristics that makes QPb25‑5 bearing liners an ideal choice for replacing vulnerable components in industries such as chemical fibers and fine chemicals, thereby improving the continuous operational reliability of equipment while substantially reducing the frequency of shutdowns for maintenance.

Lead bronze alloy, high-lead bronze alloy, bearing copper alloy

Lead bronze alloy, high-lead bronze alloy, bearing copper alloy

Babbitt bearing bushing, finished product QPb25-5

Babbitt bearing bushing, finished product QPb25-5

QPb25-5 is a multi-component copper alloy with copper as the matrix, containing 25% lead and 5% tin. It is produced by centrifugal casting, resulting in a microstructure that features finely dispersed free‑lead phases and tin‑based solid‑solution strengthening phases. This alloy exhibits excellent friction‑reducing properties, anti‑seizure performance, and corrosion resistance. Under boundary lubrication conditions, the lead phase forms a microscopic lubricating film, significantly lowering the coefficient of friction and endowing the bearing liner with superior self‑lubrication and anti‑adhesive capabilities, making it particularly suitable for high‑speed, heavily loaded operating conditions in the chemical industry where stable oil films are difficult to establish. The addition of tin refines the grain structure, enhancing the alloy’s strength and fatigue resistance, thereby effectively extending the service life of the bearing liner under cyclic loading. Moreover, this material demonstrates outstanding resistance to sulfuric acid, dilute hydrochloric acid, and various organic solvents, providing long‑term protection against corrosive chemical media and ensuring dimensional accuracy and mating stability in pumps, compressors, agitators, and other chemical‑process equipment. It is precisely the synergistic effect of its wear resistance, corrosion resistance, thermal stability, and self‑lubricating characteristics that makes QPb25‑5 bearing liners an ideal choice for replacing vulnerable components in industries such as chemical fibers and fine chemicals, while improving the continuous operational reliability of equipment and substantially reducing the frequency of shutdowns for maintenance.
Babbitt bearing QPb25-5

Babbitt bearing QPb25-5

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Bushing QPb20-5

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Bushing QPb15-8

Bushing QPb15-8

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Our company has custom‑manufactured CuPb15Sn7 high‑lead tin bronze bushings for Voestalpine of Austria, featuring embedded graphite lubrication points. These bushings combine self‑lubrication with exceptional wear resistance, and are specifically designed for critical components of large die‑casting machines. They effectively reduce frictional losses, extend equipment maintenance intervals, and meet the demands of high‑load, continuous operating conditions.
Bushing 2QPb15-7

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Die‑casting machine bushings (QPb15‑7) manufactured as part of the production support for Austria’s Voestalpine, a wholly state‑owned enterprise. This batch has completed all finishing operations and is now in finished‑product condition. The scene is at the packaging and shipping area: after passing final dimensional and visual inspections, the bushings are undergoing rust‑preventive treatment and being packed into custom‑made wooden crates, ready for shipment to Austria. The image clearly captures the orderly arrangement of finished parts, poised for boxing, with each item rigorously compliant with Voestalpine’s technical specifications to ensure delivery quality. This photograph is an on‑site record of the production‑to‑delivery process, demonstrating our company’s capability to precisely control the machining of precision components.
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