Specializing in the production of sandblasting antistatic, wear-resistant

Specializing in the production of sandblasting [static, abrasion] 1 Scope for metal surface pressure sand-blasting style, playing hemp and rubber hoses construction blasting wet blasting and dry sand blasting. Common application areas shipbuilding, machining, coating industries. 2 Categories A type electrically connected to mark "M" grade; B type having a conductive rubber layer, mark "Ω" level; C-type non-conductive, ordinary type, marking "A" grade; 3 technique requires the use of temperature hoses The temperature is -20-70 ℃. Material and structure of the pipe for blasting shall have the following parts: - an inner liner (inner layer); - the enhancement layer using a suitable method for laying natural or synthetic fabrics; - the cover layer (outer layer); wherein enhancement layer method to use more tape and cord clamp winding method. Hydraulic requirements 1, the maximum working pressure of the hose is 0.63MPa. 2, when the hose at twice the working pressure hydraulic test, should not water seepage, no local muster, no expansion and no other anomalies. Antistatic hose to keep the pressure 1min, its length should not exceed ± 0.8%, the outside diameter should not vary by more than ± 10%, no meter reverse should not exceed 60o. 3, hose pressure should not be less than 4 times the working pressure. When bending performance 23 ℃, hoses nominal diameter of 10 times the minimum bend radius test, deformation KD value should not exceed 0.8 times the outer diameter D of the hose. (Before bending than the outer diameter and an outer diameter of the outer diameter of the hose before bending K reduction after bending.) (-25 ± 2 ℃), the phenomenon should be no cracks after bending. Conductive properties of each "M" grade hose shall not exceed 102Ω. Each hose "Ω" level should not exceed 1MΩ. Wear sandblasting hose as the main performance, but also the difference between good and bad user quality hose main judgment basis. The current industry standard HG / T2192-2008 specified in accordance with the ISO 4649 method A, the wear volume of less than 140mm3. (Test method before the old version of the industry standard used are: Akron Law --- wear volume of less than 0.8cm3 / 1.61km Although the method has been replaced by the method A ISO 4649 after 2008, but some domestic hose. consumers still use this measurement method) Other features Other features, such as: interlayer adhesion strength, ozone resistance, mechanical properties, etc. are also under pressure to verify the quality of the sandblasting consider quality indicators, specifically refer to our current spray Industry standard HG sand tubes / T2192-2008.