Wear Resistant Slurry Pump Parts High Chromium Alloy Impeller 400DT - A65

400DT - A65 Wear - Resistant And Corrosion - Resistant High Chromium Alloy Impeller

Introduction:

The impeller used in the desulfurization pump is mainly closed and open according to the medium. Due to the work requirements, our impeller usually has high corrosion resistance, adopts advanced CFD flow simulation analysis technology, high operating efficiency, and structure. Simple and easy to maintain. The mechanical seal uses a cartridge-type machine seal dedicated to the desulfurization process and is reliable in operation.

Advantage

1, Has a certain bending resistance
2, Has a good adhesion
3. Meet the anti-corrosion requirements under complex chemical conditions

Impeller repair method

1,copper wire repair method

For pinhole-shaped cavitation, as long as the holes are not connected into a piece, the pinhole can be punched with a copper wire, and the trowel can be used to smear. Before processing, the surface of the blade should be cleaned with rust and dirt, then the oxygen in the pores should be blown off with the oxygen-acetylene flame, and then the appropriate thickness of the copper wire is filled into the hole, and the copper is tapped with a pointed hammer. The wire is squeezed and squeezed into the hole and flattened with a file.

2,gas welding repair method

The impeller is placed on a charcoal fire and heated to 400-500 ° C. The tin is hung at the repaired joint, and then the brass filament is melted into the groove or hole to be repaired with an oxygen-acetylene flame. After the welding, the charcoal fire is removed, and asbestos is removed. The board is covered with insulation to allow the blades to cool slowly to avoid cracking. After welding, the boring tool is used to finish the machining according to the original contour.

3,epoxy resin repair method

According to the mixing ratio and order, take appropriate amount of epoxy resin, ethylenediamine, dibutyl phthalate and acetone in a glassware and mix well. Pay attention to the viscosity of the adhesive when mixing, and add the amount of acetone in an appropriate amount. The prepared epoxy resin is used up within 20-30 minutes. Use a wool brush to pick up the epoxy resin, brush the surface of the blade with the blisters and pores. When brushing, use a sharp cone to gently squeeze out the blisters and the bubbles in the middle of the pores. Apply as much as possible and gently scrape with a scraper. real. After the epoxy resin is cured for 1-2 hours, brush it again for 2 to 3 times. When applying the brush once, be sure to make the surface of the blade smooth and smooth. After the painting is finished, the impeller is placed in an environment of 20-30 ° C and a relatively low relative humidity, and is slowly maintained for 48 hours. After the epoxy resin is completely cured, the contour of the impeller and the protrusion on the surface layer are trimmed with a file or a sander.

4,accelerated steel repair method

Quick-formed steel is a cement-like adhesive repair agent before curing. It has high strength, high hardness, no shrinkage and no rust after curing. It is suitable for filling pores, cracks, blisters, etc. in steel, iron and other metal materials. Repaired with a strong bonding effect. Before repairing, clean the rough rust and dirt around the repaired area and roughen it. The colloid in the plastic tube of the quick-form steel is taken out, and the materials of the two different colors of the core and the outer skin of the gel are quickly and fully smashed into one color (about 1 to 2 min) to achieve heat generation and softness. Before the colloidal steel colloid is to be solidified, it is firmly adhered to the repairing place, and is compacted with force (hand or tool) multiple times during the solidification process of the colloid to enhance the adhesion of the adhesive to the blade. After the fusible steel is hardened, it is flattened with a file.

5,surfacing repair method

Before surfacing, grind the cavitation part with a grinder, and clean the surface of the rust and debris until the bright metal body is exposed, so that the surfacing layer and the blade are more firmly combined. After cleaning, the impeller is placed in a charcoal fire for preheating. Use the same electrode or stainless steel electrode as the blade material, without peeling, damage, keep dry, remove moisture, so as to avoid air holes in the weld. When surfacing, it is necessary to adopt round-trip welding, or stratified cross-welding can be adopted, and the amount of welding should be less at each time to prevent the blade from being concentrated by heat and causing stress deformation. After repair welding, the blade is trimmed with a sander. The repaired impeller must be subjected to a static balance test. In order to prevent the impeller from rotating at a high speed, the centrifugal force is generated due to the imbalance of the additional weight to cause the water pump to vibrate.

Structure of slurry pump

Shijiazhuang ShizaPump Industry Co.,Ltd. founded in 2008, is a professional industrial pump manufacturer engaged in researching slurry pump, wear and corrosion resistant materials and OEM processing.

Shizapump group covers more than 40000 square meters, the registered capital is 18 million yuan. Over the years with strong strength and people-oriented concept, we absorb a large number of high-quality management and technical talents. Existing staff is more than 220 people, of whom 30% are technicians.

Our production area covers an area of 24000 square meters, the total production capacity of an annual output is 10000 units (sets), and the annual output of all kinds of high chromium alloy castings is 2000 tons.The production area is divided into five districts one area and two centers, namely mould casting, heat treatment, fine machining, forge welding and assembly coating of five production areas; finished spare parts; quality analysis and water experiment. The main material of products: A05, A49, A33, A51 and other high chromium white cast iron.

Shijiazhuang ShizaPump Industry Co.,Ltd. fully implements the ISO9001 management system and observes the process of inspection. Quality inspection records are available in all production processes. Professional instruments include spectrometer, metallographic analyzer, flaw detector, mechanical test machine (strain, impact, hardness), magnetic flowmeter, pressure gauge, ammeter, vibration meter, noise meter, hydraulic experimental curve of professional software. Perfect detection guarantees the quality of equipment to ensure that each pumps and parts are fully in line with the requirements.

Shijiazhuang ShizaPump Industry Co.,Ltd. has spread all domestic market in China over 30 provinces and municipality. Also has been successfully used in 20 countries in global .First line staff have professional experience to provide service for customers.