A New Abrasion Resistance Polymer Resin Can Extend Your Pipe Lifetime
24Pages

1. Introduction Goldstone has developed a proprietary composite pipe (GXCG/HDPE) that offers superior abrasion resistance and lower cost of production compared to all leading products in this market area. GXCG/HDPE pipe combines the strength of Goldstone’s high pressure steel wire/fiberglass reinforced HDPE pipe technology with the abrasion resistance of a proprietary liner. 2. Main Characteristics ♦ Excellent abrasion resistant property. It is especially suitable for the transportation of slurry, mine refuse and other solid or mixture. ♦ Good melting flow and easy for processing by general polyolefin extrusion equipment. ♦ The composite pipe co-extruded by GXCG material and HDPE/PP has excellent bonding property in the interface, there is no separation in the interface. ♦ Excellent physical characteristics. ♦ Sanitary liner without any toxic additives. 3. Abrasion Resistant Property Test 3.1 Rotation Wear Test for GXCG Material Several different commercial pipe materials are made into specified sample plates. The samples are placed in the wear slurry (sand & water) for different rotation test, after different times using a sand/water mixture (52 vol %/48 vol %). The samples were collected and weighed.

Coarse sand used for test Rotation wear test device（1—Test sample；2—Sand slurry；3—Rotation axis） Many pipe companies use this test method to check and compare different material abrasion-resistant property (Testing setting are different), we summarized their test results and put them in the following table. Weight Lost Rotation speed: 1400rpm; wear time: 11h; specimen size: 100mm×100×4mm Weight Lost Small sands （Construction use） Coarse sand (Hard &sharp quartz sand, size: 3mm-5mm)

Weight Lost Abrasion Resistance of Differenct Material ■ GXCG-1101 □ UHMWPE (2.5MW) □ WJK® Rubber □ Silicone Rubber Different Material

3.2 Akron Abrasion Testing For Materials Akron abrasion is a very common test method for abrasion-resistant material. We sent our GXCG abrasion resistant material sample to authorized testing company. In the same testing condition, rubber material lost is 0.90cm3, GXCG material is 0.11cm . In this test, GXCG material is much better than rubber. Science Standard Testin g Qingdao S&S Chemicals Analysing and Testing Co., Ltd. & m at # Test Report 3.3 High Speed Slurry Spray Impact Test For Materials To test how Goldstone GXCG material’s impact wear resistant property, a special testing device...

Test Result Wear loss weight(g) Spay impact Spray speed Spay impact - angle (m/s) time (h) UHMWPE-1 UHMWPE-2 j HDPE 3.4 Darmstadt Test For Pipes The Darmstadt test consists of a tilting or rocking pipe, pivoted at its centre. An abrasive slurry of stones and water moves up and down the pipe in the longitudinal direction. The flow direction is therefore in the longitudinal direction, which is the same as in an operating pipeline. The Darmstadt test has been used to determine the abrasion resistance of a range of pipeline materials. Using the HDPE pipe and GXCG/HDPE composite pipe to...

HDPE Pipe GXCG/HDPE Composite Pipe The following graph shows weight loss versus abrasion test cycles: Abrasion Resistance Pipe Weight Loss (gram) UHMWPE PIPE 超高分子量管 HDPE PIPE 聚乙烯管 Steel With Coating Material 内衬钢管 线性 (UHMWPE PIPE 超高分子量管) 线性 (HDPE PIPE 聚乙烯管) 线性 (Steel With Coating Material 内衬 钢管)

Particle size (mm) Percentage 3.5 Slurry Pressure Pumping Test For Pipes To better understand Goldstone GXCG abrasion-resistant pipe performance in transportation of real iron ore concentrate, we cooperate with national key mine laboratory to do the slurry pressure pumping test. Iron ore concentrate particles are used to do the test. Particles sizes are measured by laser diffraction particle size analyzer. The following table is the detailed iron ore concentrate particle size analysis: Test time: 600 hours, pipe is cleaned, dried and weight by every 60 hours Iron ore concentrate particle...

Pictures of testing device Different pipes used for testing

Steel pipe after 600 hours testing: Damage &Corrosion GXCG abrasion-resistant pipe after 600 hours testing: Almost no change or damage Test result for different pipes

From the test results, it is clear that Goldstone GXCG abrasion resistant pipe is much better than other pipes, the inner pipe surface is smooth and no scratch damage, other pipes has problems of deformation, scratch damage etc. We have conducted SEM electron microscope analysis for HDPE pipe, GXCG Abrasion-resistant pipe, UHMWPE pipe to see their micro structure. GXCG abrasion-resistant pipe has a much smoother inner surface compared to UHWMPE pipe and normal HDPE pipe UHWMPE pipe GXCG abrasion-resistant pipe HDPE pipe UHWMPE pipe GXCG abrasion-resistant pipe HDPE pipe...

4. Project performance Goldstone GXCG abrasion resistant pipe has been used in various of mining projects in China and abroad including Rio Tinto, Pangang Steel Mine etc. Project 1: Iron sand separation facility usage description: Normal steel elbow leaks only 9 days after installation Goldstone abrasion-resistant elbow before installation Elbow is installed to the iron sand separation transportation pipes

After 5 months operation, no damage to the abrasion-resistant elbow, installed again Customer’s feedback: K-wsfnftEOt n. itwmiAWKtetjWffi sfgyh. as*:ar«5j#. *'>. >j ft i>«] <■* fit itj «rt 11 s * * «. xtw'mmif&ifisn: 1-5111. ^DtSMT ill. ft&irtki&'fiA ilitlt Our company used Goldstone’s GXCG abrasion resistant pipe and elbow for iron sand separation. This pipe is very good for abrasion resistant property, it is more than 8 times better than steel pipe. Connection is convenient, our company saved a lot of labor & cost for changing the damaged parts, also helped increasing productivity. We...

Project 2: Filtration pipe in ore dressing factory (pipe working pressure ＞5Mpa) Filtration equipment Old steel pipe with ceramic liner: Easy to wear out New steel pipe with abrasion resistant material: Still using till now.