HEXIN MACHINERY , producer of heat resistant castings

  Main rollers , main rollers for glass rolling machine QINGDAO HEXIN MACHINERY CO.,LTD. Address:  BeiAn Industrial park, Qingdao,China Email：info(at)hexinmachinery.com www.hexinmachinery.com    QINGDAO HEXIN MACHINERY CO.,LTD is one of the leading suppliers of complete rollers and engravings used in glass rolling production.  produces thousands of rollers each year, for more than 400 glass production lines in china and abroad.  For cast rolling glass lines, we supply main rollers: Plain rollers, engraved rollers for all pattern, transport rollers, Table rollers, Positioning rollers. Embossing rollers, patterned roller . Our roller conveyor system of the annealing lehr for float glass and flat glass production, the cast glass rolling machines for rolling of solar,photovoltaic,decorative, wired and figured glass , patterned glass. Our roller company is the most professional chinese manufacturer for the conveyor system of the annealing lehr of float glass and flat glass production,  the

  Main rollers , main rollers for glass rolling machine QINGDAO HEXIN MACHINERY CO.,LTD. Address:  BeiAn Industrial park, Qingdao,China Email：info(at)hexinmachinery.com www.hexinmachinery.com    QINGDAO HEXIN MACHINERY CO.,LTD is one of the leading suppliers of complete rollers and engravings used in glass rolling production.  produces thousands of rollers each year, for more than 400 glass production lines in china and abroad.  For cast rolling glass lines, we supply main rollers: Plain rollers, engraved rollers for all pattern, transport rollers, Table rollers, Positioning rollers. Embossing rollers, patterned roller . Our roller conveyor system of the annealing lehr for float glass and flat glass production, the cast glass rolling machines for rolling of solar,photovoltaic,decorative, wired and figured glass , patterned glass. Our roller company is the most professional chinese manufacturer for the conveyor system of the annealing lehr of float glass and flat glass production,  the

  Main rollers , main rollers for glass rolling machine QINGDAO HEXIN MACHINERY CO.,LTD. Address:  BeiAn Industrial park, Qingdao,China Email：info(at)hexinmachinery.com www.hexinmachinery.com    QINGDAO HEXIN MACHINERY CO.,LTD is one of the leading suppliers of complete rollers and engravings used in glass rolling production.  produces thousands of rollers each year, for more than 400 glass production lines in china and abroad.  For cast rolling glass lines, we supply main rollers: Plain rollers, engraved rollers for all pattern, transport rollers, Table rollers, Positioning rollers. Embossing rollers, patterned roller . Our roller conveyor system of the annealing lehr for float glass and flat glass production, the cast glass rolling machines for rolling of solar,photovoltaic,decorative, wired and figured glass , patterned glass. Our roller company is the most professional chinese manufacturer for the conveyor system of the annealing lehr of float glass and flat glass production,  the

  patterned roller ，patterned roller for solar wire and patterned glass QINGDAO HEXIN MACHINERY CO.,LTD. Address:  BeiAn Industrial park, Qingdao,China Email：info(at)hexinmachinery.com www.hexinmachinery.com    QINGDAO HEXIN MACHINERY CO.,LTD has over 30 years production experience for glass roller, especially for the patterned roller. To make one good quality rollers, we do welding, machining, grinding, mill engraving with laser technologies, drilling and turning,  special coatings for smooth and engraved rollers, with very mature workmanship, and very reliable quality . Meanwhile, we also can produce engraved roller, patterned roller, main roller, plain roller, all the roller were produced under customer’s request,  we welcome you all come to visit our foundry at your convenience.(patterned roller，patterned roller for solar wire and patterned glass) Install the outer end plates on the shafts at both ends, and connect the welded outer end plates with the joint surfaces of the shaft bo

  Main rollers , main rollers for glass rolling machine QINGDAO HEXIN MACHINERY CO.,LTD. Address:  BeiAn Industrial park, Qingdao,China Email：info(at)hexinmachinery.com www.hexinmachinery.com    QINGDAO HEXIN MACHINERY CO.,LTD is one of the leading suppliers of complete rollers and engravings used in glass rolling production.  produces thousands of rollers each year, for more than 400 glass production lines in china and abroad.  For cast rolling glass lines, we supply main rollers: Plain rollers, engraved rollers for all pattern, transport rollers, Table rollers, Positioning rollers. Embossing rollers, patterned roller . Our roller conveyor system of the annealing lehr for float glass and flat glass production, the cast glass rolling machines for rolling of solar,photovoltaic,decorative, wired and figured glass , patterned glass. Our roller company is the most professional chinese manufacturer for the conveyor system of the annealing lehr of float glass and flat glass production,  the

  Main rollers , main rollers for glass rolling machine QINGDAO HEXIN MACHINERY CO.,LTD. Address:  BeiAn Industrial park, Qingdao,China Email：info(at)hexinmachinery.com www.hexinmachinery.com    QINGDAO HEXIN MACHINERY CO.,LTD is one of the leading suppliers of complete rollers and engravings used in glass rolling production.  produces thousands of rollers each year, for more than 400 glass production lines in china and abroad.  For cast rolling glass lines, we supply main rollers: Plain rollers, engraved rollers for all pattern, transport rollers, Table rollers, Positioning rollers. Embossing rollers, patterned roller . Our roller conveyor system of the annealing lehr for float glass and flat glass production, the cast glass rolling machines for rolling of solar,photovoltaic,decorative, wired and figured glass , patterned glass. Our roller company is the most professional chinese manufacturer for the conveyor system of the annealing lehr of float glass and flat glass production,  the

  Main rollers , main rollers for glass rolling machine QINGDAO HEXIN MACHINERY CO.,LTD. Address:  BeiAn Industrial park, Qingdao,China Email：info(at)hexinmachinery.com www.hexinmachinery.com    QINGDAO HEXIN MACHINERY CO.,LTD is one of the leading suppliers of complete rollers and engravings used in glass rolling production.  produces thousands of rollers each year, for more than 400 glass production lines in china and abroad.  For cast rolling glass lines, we supply main rollers: Plain rollers, engraved rollers for all pattern, transport rollers, Table rollers, Positioning rollers. Embossing rollers, patterned roller . Our roller conveyor system of the annealing lehr for float glass and flat glass production, the cast glass rolling machines for rolling of solar,photovoltaic,decorative, wired and figured glass , patterned glass. Our roller company is the most professional chinese manufacturer for the conveyor system of the annealing lehr of float glass and flat glass production,  the

  embossing roller for patterned glass by Qingdao Hexin Machinery Co.,Ltd.

  engraved roller with goldfish pattern by Qingdao Hexin Machinery Co.,Ltd.

  pattern rollers for ornament glass by Qingdao Hexin Machinery Co., Ltd.

 embossing roller with chrome plating by Qingdao Hexin Machinery Co.,Ltd.

  engraved roller for glass by Qingdao Hexin Machinery Co.,Ltd.

 patterned rollers for cast glass calender by Qingdao Hexin Machinery Co., Ltd.

  Method for alleviating local wear of sink rolls During the use of sink rolls , due to various reasons, the roll pass pattern is often worn, cracks and various local wear, etc., which make the sink rolls invalid, which brings a lot of inconvenience to industrial production and reduces the use of sink rolls. Life and production efficiency, how can we reduce the local wear of sink rolls? The following will give you a detailed analysis of the reasons: There are roughly three reasons for the failure of sink rolls in welded pipe production: First, the improper adjustment of symmetry causes heavy wear of the roll pass; Second, the poor heat treatment leads to cracks in the rolls and "dropping meat"; Third, the linear speed of the R pass is not equal to cause local wear of the edge and bottom diameter of the pass. The first two are human factors, which can be solved through technical training and strengthening of heat treatment process management; while the third reason, which is

  Reasons why high-speed steel sink rolls are cooled in use High-speed steel material has a large amount of thermal expansion, and poor roll temperature distribution is prone to uneven thermal expansion and abnormal shedding of the oxide film, which affects the thermal crown and roll gap accuracy of sink rolls . The key factor affecting the oxide film and thermal crown of high-speed steel sink rolls is the surface temperature of sink rolls.   Therefore, the ideal cooling method of sink rolls and shortening the time that the sink roll surface is in a high temperature state are important means to control the thickness of the oxide film on the sink roll surface, control the thermal crown, and reduce thermal cracks. During the hot rolling process, the instantaneous contact temperature of sink rolls is 600 ℃ ~750 ℃ , and the temperature of sink rolls exceeds 50 ℃ . prevent further oxidation.   After the sink rolls pass through the instantaneous high temperature contact zone, the rapid opera

  Analysis of Failure Causes of Surfacing Materials for Composite Remanufactured Sink Rolls The influencing factors and laws of the mechanical properties of surfacing deposited metal were analyzed. Firstly, the reasons for the failure of the surfacing materials for sink rolls are analyzed. It is considered that the surfacing metal has poor strength and plasticity, coarse columnar crystals, high inclusion content and high residual austenite content in the microstructure. It has a greater impact on surface cracks and spalling of sink rolls. Based on the Cr5 surfacing alloy system, the effects of V and Mo alloy contents on high temperature tensile, thermal fatigue properties, high temperature wear properties, impact toughness and hardness at room temperature were studied by single variable method. Through the analysis of the microstructure of the cladding metal, the relationship between the change of the microstructure and the mechanical properties is discussed, and the finally optimized

  Introduction to the main methods of preventing sink rolls bearings from rusting In the use of sink rolls , we will find that the accessories are prone to rust. The most common one is the rust of the sink rolls bearings. Therefore, we must find ways to solve this problem when producing sink rolls. Today, I will introduce the prevention of sink rolls. The primary method of rusting in rolls bearings. First, choose corrosion-resistant materials: mainly non-ferrous metal alloys and stainless steel. Second, the metal surface prefabricated metal (alloy) or non-metallic coating: 1.  Conversion coating: blackening (blue), phosphating, anodizing; 2.  Surface alloying: nitriding, galvanizing, siliconizing, aluminizing, chroming, etc.; 3.  Metal coating: electroplated metal, sprayed metal, hot dip plating, chemical plating, etc.; 4.  Non-metallic covering: enamel, ceramic, paint, plastic, rubber, etc.; 5.  Coating anti-rust materials: anti-rust water, cutting fluid, gas phase corrosion inhibitor

  Requirements for the use of zinc pot sink rolls , stabilizer rolls, and shaft sleeve materials in galvanizing production lines Galvanizing production line: The shaft sleeve and bearing bush are installed between the sink rolls and the stabilizer roll to protect the shaft head and the inner hole of the boom from corrosion and wear in the zinc liquid.   According to our domestic on-site inspection and understanding, the shaft sleeve and bearing bush have a short service cycle and a large amount of wear (8-15 days) during the production process. Jumping, the strip is easy to deviate, affecting the quality of the product, causing the shutdown to be replaced during normal production. At present, our company has developed and produced tungsten-based alloys, cobalt-based alloys, tungsten-cobalt alloys, JFE-30A2K3, JFE-30A2K3 with strong wear resistance and high resistance to zinc liquid corrosion according to the use of on-site bushings and bearing bushes to meet market demand. and other

  Repair method of polymer composite material for sink rolls bearing wear   The bearing position of sink rolls has super adhesion, excellent compressive strength, wear resistance and corrosion resistance and other comprehensive properties. It adopts Meijiahua-Fushilan 2211F polymer composite material, which can be repaired without disassembly on site when the wear size of the transmission part is relatively small. It not only avoids the machining of sink rolls, but also has no thermal stress of repair welding, and the repair thickness is not limited. At the same time, the wear resistance of sink rolls products and the concessionality that metal materials do not have, ensure 100% contact fit of the repaired parts, reduce the shock and vibration of the equipment, avoid the possibility of wear, and greatly extend the equipment parts (including bearings) It can save a lot of downtime for enterprises and create huge economic value. Cold welding repair method: The cold welding machine uses

  What kind of mechanical seals are used in sink rolls Sink rolls are a common type of industrial equipment, most commonly seen are hot-dip galvanized sink rolls or stainless steel sink rolls. It is usually used in the printing industry and high temperature boiler fields. But some people don't know that, in fact, s ink rolls sometimes need to use mechanical seals. Then we may have seen mechanical seals for pumps, mechanical seals for reactors, etc., so what is the mechanical seal of s ink rolls? The mechanical seal used for sink rolls is actually similar in principle and use. It is a device with better sealing performance, which is a device to prevent liquid leakage and pollute the environment.   Then the general sink rolls mechanical seal is composed of end face seals, auxiliary seals, elastic elements, etc., and in order to make high-quality mechanical seals, the materials used for these elements are also very important.

  The meaning, function and structural characteristics of Sink rolls scraper Sink rolls are commonly used equipment in industrial furnaces. Many friends do not know much about sink rolls scraper device, which is an important auxiliary equipment in continuous hot-dip galvanizing production line.   Today, He cheng   Centu ry will introduce the meaning and structural characteristics of the sink rolls scraper device, so that everyone can have a deeper understanding of sink rolls and sink rolls. The sink rolls hanging device is one of the most important auxiliary equipment in the continuous hot-dip galvanizing production line. Its function is to clear and clean the attachments on the sink rolls so that the surface can maintain a certain smoothness during the operation cycle, without the influence of slag and nodules. Strip surface quality. The sink rolls scraper device used by Asia Pacific Special Cast Steel can effectively solve the technical problems of lead screw jamming deformation, s

  Sink rolls surfacing support device and design of resistance furnace In the surfacing process of sink rolls, a support device is used, which includes a base, the middle part of which is provided with a groove, the base is provided with a bracket, the base plate of the bracket is fixed on the groove of the base, and the upper part of the bracket is There is an installation shaft, and the installation shaft is provided with a support wheel for supporting the sink rolls. The base of the sink rolls surfacing equipment is provided with a through hole, the through hole is parallel to the groove in the middle of the base, a screw is arranged in the through hole, a screw is arranged in the middle of the bottom plate of the bracket, and the screw is There are screws, and the left and right ends of the base are provided with cylinders for adjusting the height of the sink rolls. The results show that the roller surfacing support device has the advantages of simple structure, reasonable design,

  Cost-effective comparison of different surfacing technologies for sink rolls   For many sink roll s surfacing, the main thing is that they have different performance requirements. Generally speaking, for most of the surfacing welding of sink rolls, if we use a single material, it will not meet our requirements, and for its inner and outer layers, it can also be made of two materials separately. If the sink rolls surfacing itself uses composite technology, it can use mechanical combination, as well as composite casting and other cladding technologies.   But for its roll surface repair, it mainly adopts surfacing technology.  For sink rolls bearing wear, if it is a relatively shallow situation, many companies use pitting or copper pads to cope with it.   Therefore, when we are surfacing the sink rolls, it is difficult for us to meet the wear size of 0.5mm, or the brush plating technology for bearing positions that exceeds this range. And if hot repair welding is used, its influence on

 lost wax cast baskets and fixtures  ,   stainless steel lost wax cast baskets and fixtures  QINGDAO HEXIN MACHINERY CO.,LTD. Address:  BeiAn Industrial park, Qingdao,China Email：info(at)hexinmachinery.com www.hexinmachinery.com    QINGDAO HEXIN MACHINERY CO.,LTD is one of the leading producers of heat resistant castings, with high nickel chrome alloys. We manufacture cast trays and grids for batch furnace and skid hearth furnace, casting stackable baskets for heat treatment furnaces, roller hearth trays , serpentines trays , furnace fixtures, jigs, for chamber furnace, pit furnaces.  centrifugal cast furnace rolls, radiant tubes, heat recuperators, skid riders, sink rolls, stabilizer rolls, arms,   bushes and sleeves,and petrochemical cast catalyst tubes, pyrolysis furnace parts, tube sheets, tube supports, tube hangers, incinerator grate bars, air cooled grates, water cooled grate blocks, muffles, rotary retorts, etc., At QINGDAO HEXIN, we produce heat treatment furnace components by