WO2020029001A1 - Valve manufacturing method - Google Patents

Valve manufacturing method Download PDF

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Publication number
WO2020029001A1
WO2020029001A1 PCT/CN2018/098918 CN2018098918W WO2020029001A1 WO 2020029001 A1 WO2020029001 A1 WO 2020029001A1 CN 2018098918 W CN2018098918 W CN 2018098918W WO 2020029001 A1 WO2020029001 A1 WO 2020029001A1
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WIPO (PCT)
Prior art keywords
parts
valve
manufacturing
sand
mold
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PCT/CN2018/098918
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French (fr)
Chinese (zh)
Inventor
周天毫
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苏州速腾电子科技有限公司
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Application filed by 苏州速腾电子科技有限公司 filed Critical 苏州速腾电子科技有限公司
Priority to PCT/CN2018/098918 priority Critical patent/WO2020029001A1/en
Publication of WO2020029001A1 publication Critical patent/WO2020029001A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting

Definitions

  • the invention relates to a method for manufacturing a valve, and belongs to the technical field of valve processing.
  • the valve is a control component in the fluid delivery system, and has functions such as cut-off, regulation, diversion, prevention of backflow, voltage stabilization, shunting, or pressure relief.
  • Valves are divided into cast iron valves, cast steel valves, stainless steel valves, chrome-molybdenum steel valves, chrome-molybdenum-vanadium steel valves, dual-phase steel valves, plastic valves, and non-standard valve materials.
  • cast iron valves cast steel valves
  • stainless steel valves chrome-molybdenum steel valves
  • chrome-molybdenum-vanadium steel valves dual-phase steel valves
  • plastic valves and non-standard valve materials.
  • non-standard valve materials At present, in the steel casting industry, when casting steel parts, casting molds, casting and post-processing of valves are usually performed. Improper processing of the cast steel is prone to defects such as cracks, trachoma and pores, which affect the quality of the product. The reasonable production process has become a technical problem to be
  • the present invention provides a method for manufacturing a valve.
  • a valve manufacturing method includes the following steps:
  • Molding sand molding Use heat-resistant molding sand to make sand molds around the molds, take out the molds, and obtain sand molds;
  • Cooling fast cooling to 800-900 °C, holding time for 10-20min; fast cooling to 350-400 °C, holding temperature for 20-30min; after fast cooling to room temperature; clean the valve surface, cut off the gate, riser, shovel Projections such as burrs and quilts, clean up the residual sand again;
  • Tempering Heat the valve to 350-400 ° C for 20-30min; cool to room temperature and heat to 600-700 ° C for 10-15min; slowly cool to room temperature;
  • the refining agent includes the following raw materials in parts by weight: 10-15 parts of sodium fluoride, 10-15 parts of magnesium chloride, 5-10 parts of potassium chloride, and 10-15 barium fluoride Parts, 2-6 parts of aluminum carbonate and 1-5 parts of calcium oxide.
  • the inoculant includes the following raw materials in parts by weight: 1-5 parts of iron, 1-5 parts of calcium, 5-10 parts of aluminum, 1-3 parts of strontium, and 1-3 of barium Parts and 1-3 parts of lanthanum.
  • the degreaser includes the following raw materials in parts by weight: 3-8 parts of flour, 10-15 parts of polyacrylamide, 10-15 parts of grapefruit peel extract, and sodium citrate 1 -3 parts, coconut oil fatty acid diethanolamide 10-15 parts and water 50-50 parts.
  • the grapefruit peel extract is obtained by the following steps: drying the grapefruit peel and placing it in an ethanol solution, and refluxing for 60-80min; filtering, concentrating the ethanol, and spraying A grapefruit peel extract was obtained after drying.
  • the degreaser is obtained by the following steps: heating water to 50-60 ° C, adding flour and grapefruit peel extract, stirring and mixing thoroughly, adding citric acid, and then Add polyacrylamide and coconut oil fatty acid diethanolamide, and stir to obtain a degreaser.
  • the valve manufacturing method of the present invention adopts refined molten steel and inoculates it before pouring.
  • the valve has less shrinkage on the surface and less internal porosity.
  • the overall hardness difference is small, and the cooling and tempering treatment in stages are improved.
  • the refining agent of the invention has simple components, can remove impurities in the molten steel, improves the purity of the molten steel, and ensures that the surface of the molten steel is uniform;
  • the inoculant of the invention has simple components, can refine the crystal grains, optimize the formation of crystal nuclei, and improve the hardness of the valve itself;
  • the degreaser component of the present invention is environmentally friendly, has a good degreasing effect, and has little environmental pollution. It uses grapefruit peel extract to have a good oil removal effect while making full use of grapefruit peel; the extraction method is simple, and it is combined with flour, polyacrylamide, sodium citrate, and Coconut oil fatty acid diethanolamide has strong oil removal ability.
  • a valve manufacturing method includes the following steps:
  • Molding sand molding Use heat-resistant molding sand to make sand molds around the molds, take out the molds, and obtain sand molds;
  • Cooling fast cooling to 800-900 °C, holding time for 10-20min; fast cooling to 350-400 °C, holding temperature for 20-30min; after fast cooling to room temperature; clean the valve surface, cut off the gate, riser, shovel Projections such as burrs and quilts, clean up the residual sand again;
  • Tempering Heat the valve to 350-400 ° C for 20-30min; cool to room temperature and heat to 600-700 ° C for 10-15min; slowly cool to room temperature;
  • the refining agent includes the following raw materials in parts by weight: 10 parts of sodium fluoride, 10 parts of magnesium chloride, 5 parts of potassium chloride, 10 parts of barium fluoride, 6 parts of aluminum carbonate, and 5 parts of calcium oxide.
  • the inoculant includes the following raw materials in parts by weight: 1 part of iron, 1 part of calcium, 10 parts of aluminum, 1 part of strontium, 1 part of barium, and 1 part of lanthanum.
  • the degreaser includes the following raw materials in parts by weight: 8 parts of flour, 10 parts of polyacrylamide, 10 parts of grapefruit peel extract, 1 part of sodium citrate, 10 parts of coconut oil fatty acid diethanolamide, and 50 parts of water.
  • the grapefruit peel extract is obtained by the following steps: drying the grapefruit peel and placing it in an ethanol solution, and refluxing for 60-80min; filtering, concentrating the ethanol, and spray-drying to obtain a grapefruit peel extract.
  • the degreasing agent is obtained by heating water to 50-60 ° C, adding flour and grapefruit peel extract, stirring and mixing thoroughly, adding citric acid, and then adding polyacrylamide and coconut oil fatty acid diethanol The amide is stirred and mixed to obtain a degreaser.
  • a valve manufacturing method includes the following steps:
  • Molding sand molding Use heat-resistant molding sand to make sand molds around the molds, take out the molds, and obtain sand molds;
  • Cooling fast cooling to 800-900 °C, holding time for 10-20min; fast cooling to 350-400 °C, holding temperature for 20-30min; after fast cooling to room temperature; clean the valve surface, cut off the gate, riser, shovel Projections such as burrs and quilts, clean up the residual sand again;
  • Tempering Heat the valve to 350-400 ° C for 20-30min; cool to room temperature and heat to 600-700 ° C for 10-15min; slowly cool to room temperature;
  • the refining agent includes the following raw materials in parts by weight: 15 parts of sodium fluoride, 15 parts of magnesium chloride, 5 parts of potassium chloride, 10 parts of barium fluoride, 2 parts of aluminum carbonate, and 1 part of calcium oxide.
  • the inoculant includes the following raw materials in parts by weight: 5 parts of iron, 5 parts of calcium, 5 parts of aluminum, 3 parts of strontium, 3 parts of barium, and 3 parts of lanthanum.
  • the degreaser includes the following raw materials in parts by weight: 3 parts of flour, 15 parts of polyacrylamide, 15 parts of grapefruit peel extract, 3 parts of sodium citrate, 15 parts of coconut oil fatty acid diethanolamide, and 40 parts of water.
  • the grapefruit peel extract is obtained by the following steps: drying the grapefruit peel and placing it in an ethanol solution, and refluxing for 60-80min; filtering, concentrating the ethanol, and spray-drying to obtain a grapefruit peel extract.
  • the degreasing agent is obtained by heating water to 50-60 ° C, adding flour and grapefruit peel extract, stirring and mixing thoroughly, adding citric acid, and then adding polyacrylamide and coconut oil fatty acid diethanol The amide is stirred and mixed to obtain a degreaser.
  • a valve manufacturing method includes the following steps:
  • Molding sand molding Use heat-resistant molding sand to make sand molds around the molds, take out the molds, and obtain sand molds;
  • Cooling fast cooling to 800-900 °C, holding time for 10-20min; fast cooling to 350-400 °C, holding temperature for 20-30min; after fast cooling to room temperature; clean the valve surface, cut off the gate, riser, shovel Projections such as burrs and quilts, clean up the residual sand again;
  • Tempering Heat the valve to 350-400 ° C for 20-30min; cool to room temperature and heat to 600-700 ° C for 10-15min; slowly cool to room temperature;
  • the refining agent includes the following raw materials in parts by weight: 12 parts of sodium fluoride, 12 parts of magnesium chloride, 8 parts of potassium chloride, 12 parts of barium fluoride, 5 parts of aluminum carbonate, and 3 parts of calcium oxide.
  • the inoculant includes the following raw materials in parts by weight: 2 parts of iron, 2 parts of calcium, 8 parts of aluminum, 2 parts of strontium, 2 parts of barium, and 2 parts of lanthanum.
  • the degreaser includes the following raw materials in parts by weight: 5 parts of flour, 12 parts of polyacrylamide, 12 parts of grapefruit peel extract, 2 parts of sodium citrate, 12 parts of coconut oil fatty acid diethanolamide, and 45 parts of water.
  • the grapefruit peel extract is obtained by the following steps: drying the grapefruit peel and placing it in an ethanol solution, and refluxing for 60-80min; filtering, concentrating the ethanol, and spray-drying to obtain a grapefruit peel extract.
  • the degreasing agent is obtained by heating water to 50-60 ° C, adding flour and grapefruit peel extract, stirring and mixing thoroughly, adding citric acid, and then adding polyacrylamide and coconut oil fatty acid diethanol The amide is stirred and mixed to obtain a degreaser.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

A valve manufacturing method, comprising the following steps: (1) making a mold; (2) molding by means of molding sand; (3) melting; (4) casting; (5) cooling; (6) tempering; and (7) degreasing. The present valve manufacturing method uses refined steel liquid, which is inoculated before casting, so that the valve obtained after casting has less shrinkage on the surface, and less pores inside; at the same time, the valve has less variation in overall hardness, with the stepped cooling and tempering treatments improving the hardness of the valve surface. And finally, the method uses a degreasing treatment to make the valve clean and bright as a whole.

Description

一种阀门的制作方法Manufacturing method of valve 技术领域Technical field
本发明涉及一种阀门的制作方法，属于阀门加工技术领域。The invention relates to a method for manufacturing a valve, and belongs to the technical field of valve processing.
背景技术Background technique
阀门是流体输送系统中的控制部件，具有截止、调节、导流、防止逆流、稳压、分流或溢流泄压等功能。阀门根据材质分为铸铁阀门，铸钢阀门，不锈钢阀门，铬钼钢阀门，铬钼钒钢阀门，双相钢阀门，塑料阀门，非标订制等阀门材质。目前在铸钢行业中，铸钢件在铸造时通常要制造模具、浇注再进行阀门的后期处理，处理不当则得到的铸钢容易产生裂纹、砂眼、气孔等缺陷，影响了产品的质量，因此，合理的生产工艺成为本领域技术人员亟待解决的技术问题。The valve is a control component in the fluid delivery system, and has functions such as cut-off, regulation, diversion, prevention of backflow, voltage stabilization, shunting, or pressure relief. Valves are divided into cast iron valves, cast steel valves, stainless steel valves, chrome-molybdenum steel valves, chrome-molybdenum-vanadium steel valves, dual-phase steel valves, plastic valves, and non-standard valve materials. At present, in the steel casting industry, when casting steel parts, casting molds, casting and post-processing of valves are usually performed. Improper processing of the cast steel is prone to defects such as cracks, trachoma and pores, which affect the quality of the product. The reasonable production process has become a technical problem to be solved urgently by those skilled in the art.
发明内容Summary of the invention
为了克服现有技术的不足，本发明提供了一种阀门的制作方法。In order to overcome the shortcomings of the prior art, the present invention provides a method for manufacturing a valve.
本发明是通过以下技术方案来实现的：The present invention is achieved through the following technical solutions:
一种阀门的制作方法，包括以下几个步骤：A valve manufacturing method includes the following steps:
(1)制作模具：根据阀门的形状制作模具，模具上设置有冒口和浇口；(1) Make a mold: Make a mold according to the shape of the valve, and a riser and a gate are set on the mold;
(2)型砂造型：在模具周围采用耐热型砂制作砂型，取出模具，得到砂型；(2) Molding sand molding: Use heat-resistant molding sand to make sand molds around the molds, take out the molds, and obtain sand molds;
(3)熔炼：将钢材置于三相电弧炉中，升温至1500-1650℃，转入脱碳炉，通入氧气，同时，加入精炼剂，得到钢液；(3) Melting: Put the steel in a three-phase electric arc furnace, raise the temperature to 1500-1650 ° C, transfer it to a decarburization furnace, pass in oxygen, and add a refining agent to obtain a molten steel;
(4)浇注：往钢液中加入孕育剂，反应5-8min后，往砂型中浇注钢液，浇注温度为1500-1600℃；(4) Pouring: add inoculant to the molten steel, and after 5-8 minutes of reaction, pouring molten steel into the sand mold, pouring temperature is 1500-1600 ℃;
(5)冷却：快速冷却至800-900℃，保温10-20min；快速降温至350-400℃，保温20-30min；快速冷却至室温后；清理阀门表面，切除浇口、冒口、铲磨毛刺和披缝等凸出物，再次清理残砂；(5) Cooling: fast cooling to 800-900 ℃, holding time for 10-20min; fast cooling to 350-400 ℃, holding temperature for 20-30min; after fast cooling to room temperature; clean the valve surface, cut off the gate, riser, shovel Projections such as burrs and quilts, clean up the residual sand again;
(6)回火：将阀门加热至350-400℃，保温20-30min；冷却至室温后加热至600-700℃，保温10-15min；缓慢冷却至室温；(6) Tempering: Heat the valve to 350-400 ° C for 20-30min; cool to room temperature and heat to 600-700 ° C for 10-15min; slowly cool to room temperature;
(7)除油：将阀门置于除油剂中浸泡30-40min，冲洗烘干后即可得到阀门。(7) Degreasing: Soak the valve in a degreasing agent for 30-40min, and then rinse and dry to get the valve.
所述的一种阀门的制作方法，所述精炼剂包括以下重量份数的原料：氟化钠10-15份、氯化镁10-15份、氯化钾5-10份、氟化钡10-15份、碳酸铝2-6份和氧化钙1-5份。In the method for manufacturing a valve, the refining agent includes the following raw materials in parts by weight: 10-15 parts of sodium fluoride, 10-15 parts of magnesium chloride, 5-10 parts of potassium chloride, and 10-15 barium fluoride Parts, 2-6 parts of aluminum carbonate and 1-5 parts of calcium oxide.
所述的一种阀门的制作方法，所述孕育剂包括以下重量份数的原料：铁1-5份、钙1-5份、铝5-10份、锶1-3份、钡1-3份和镧1-3份。In the method for manufacturing a valve, the inoculant includes the following raw materials in parts by weight: 1-5 parts of iron, 1-5 parts of calcium, 5-10 parts of aluminum, 1-3 parts of strontium, and 1-3 of barium Parts and 1-3 parts of lanthanum.
所述的一种阀门的制作方法，所述除油剂包括以下重量份数的原料：面粉3-8份、聚丙烯酰胺10-15份、柚子皮提取物10-15份、柠檬酸钠1-3份、椰子油脂肪酸二乙醇酰胺10-15份和水40-50份。In the method for manufacturing a valve, the degreaser includes the following raw materials in parts by weight: 3-8 parts of flour, 10-15 parts of polyacrylamide, 10-15 parts of grapefruit peel extract, and sodium citrate 1 -3 parts, coconut oil fatty acid diethanolamide 10-15 parts and water 50-50 parts.
所述的一种阀门的制作方法，所述柚子皮提取物是通过以下步骤获得的：将柚子皮晒干后置于乙醇溶液中，回流萃取60-80min；过滤，将乙醇进行浓缩，进行喷雾干燥后得到柚子皮萃取物。In the method for manufacturing a valve, the grapefruit peel extract is obtained by the following steps: drying the grapefruit peel and placing it in an ethanol solution, and refluxing for 60-80min; filtering, concentrating the ethanol, and spraying A grapefruit peel extract was obtained after drying.
所述的一种阀门的制作方法，所述除油剂是通过以下步骤获得的：将水加热至50-60℃，加入面粉和柚子皮提取物，充分搅拌混合后，加入柠檬酸，然后再加入聚丙烯酰胺和椰子油脂肪酸二乙醇酰胺，搅拌混合后得到除油剂。In the method for manufacturing a valve, the degreaser is obtained by the following steps: heating water to 50-60 ° C, adding flour and grapefruit peel extract, stirring and mixing thoroughly, adding citric acid, and then Add polyacrylamide and coconut oil fatty acid diethanolamide, and stir to obtain a degreaser.
本发明所达到的有益效果：Beneficial effects achieved by the present invention:
本发明的阀门制作方法，采用精炼的钢液，同时在浇注前进行孕育，浇注后得到的阀门表面缩孔少，内部气孔少；同时，整体硬度差别小，分阶段冷却和回火处理提高了阀门表面的硬度；最后采取了除油处理，阀门整体干净，光亮。The valve manufacturing method of the present invention adopts refined molten steel and inoculates it before pouring. The valve has less shrinkage on the surface and less internal porosity. At the same time, the overall hardness difference is small, and the cooling and tempering treatment in stages are improved. The hardness of the valve surface; at the end, a degreasing treatment was adopted, and the valve was clean and shiny as a whole.
本发明的精炼剂组分简单，能够去除钢液内的杂质，提高钢液纯度，保证钢液的表面均匀；The refining agent of the invention has simple components, can remove impurities in the molten steel, improves the purity of the molten steel, and ensures that the surface of the molten steel is uniform;
本发明的孕育剂组分简单，能够细化晶粒，优化晶核形成，提高阀门本身的硬度；The inoculant of the invention has simple components, can refine the crystal grains, optimize the formation of crystal nuclei, and improve the hardness of the valve itself;
本发明的除油剂组分环保，除油效果好，对环境污染小，采用柚子皮提取物去油效果好同时充分利用柚子皮；提取方法简单，配合面粉、聚丙烯酰胺、柠檬酸钠和椰子油脂肪酸二乙醇酰胺，去油能力强。The degreaser component of the present invention is environmentally friendly, has a good degreasing effect, and has little environmental pollution. It uses grapefruit peel extract to have a good oil removal effect while making full use of grapefruit peel; the extraction method is simple, and it is combined with flour, polyacrylamide, sodium citrate, and Coconut oil fatty acid diethanolamide has strong oil removal ability.
具体实施方式detailed description
以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.
实施例1Example 1
一种阀门的制作方法，包括以下几个步骤：A valve manufacturing method includes the following steps:
(1)制作模具：根据阀门的形状制作模具，模具上设置有冒口和浇口；(1) Make a mold: Make a mold according to the shape of the valve, and a riser and a gate are set on the mold;
(2)型砂造型：在模具周围采用耐热型砂制作砂型，取出模具，得到砂型；(2) Molding sand molding: Use heat-resistant molding sand to make sand molds around the molds, take out the molds, and obtain sand molds;
(3)熔炼：将钢材置于三相电弧炉中，升温至1500-1650℃，转入脱碳炉，通入氧气，同时，加入精炼剂，得到钢液；(3) Melting: Put the steel in a three-phase electric arc furnace, raise the temperature to 1500-1650 ° C, transfer it to a decarburization furnace, pass in oxygen, and add a refining agent to obtain a molten steel;
(4)浇注：往钢液中加入孕育剂，反应5-8min后，往砂型中浇注钢液，浇注温度为1500-1600℃；(4) Pouring: add inoculant to the molten steel, and after 5-8 minutes of reaction, pouring molten steel into the sand mold, pouring temperature is 1500-1600 ℃;
(5)冷却：快速冷却至800-900℃，保温10-20min；快速降温至350-400℃，保温20-30min；快速冷却至室温后；清理阀门表面，切除浇口、冒口、铲磨毛刺和披缝等凸出物，再次清理残砂；(5) Cooling: fast cooling to 800-900 ℃, holding time for 10-20min; fast cooling to 350-400 ℃, holding temperature for 20-30min; after fast cooling to room temperature; clean the valve surface, cut off the gate, riser, shovel Projections such as burrs and quilts, clean up the residual sand again;
(6)回火：将阀门加热至350-400℃，保温20-30min；冷却至室温后加热至600-700℃，保温10-15min；缓慢冷却至室温；(6) Tempering: Heat the valve to 350-400 ° C for 20-30min; cool to room temperature and heat to 600-700 ° C for 10-15min; slowly cool to room temperature;
(7)除油：将阀门置于除油剂中浸泡30-40min，冲洗烘干后即可得到阀门。(7) Degreasing: Soak the valve in a degreasing agent for 30-40min, and then rinse and dry to get the valve.
所述精炼剂包括以下重量份数的原料：氟化钠10份、氯化镁10份、氯化钾5份、氟化钡10份、碳酸铝6份和氧化钙5份。The refining agent includes the following raw materials in parts by weight: 10 parts of sodium fluoride, 10 parts of magnesium chloride, 5 parts of potassium chloride, 10 parts of barium fluoride, 6 parts of aluminum carbonate, and 5 parts of calcium oxide.
所述孕育剂包括以下重量份数的原料：铁1份、钙1份、铝10份、锶1份、钡1份和镧1份。The inoculant includes the following raw materials in parts by weight: 1 part of iron, 1 part of calcium, 10 parts of aluminum, 1 part of strontium, 1 part of barium, and 1 part of lanthanum.
所述除油剂包括以下重量份数的原料：面粉8份、聚丙烯酰胺10份、柚子皮提取物10份、柠檬酸钠1份、椰子油脂肪酸二乙醇酰胺10份和水50份。The degreaser includes the following raw materials in parts by weight: 8 parts of flour, 10 parts of polyacrylamide, 10 parts of grapefruit peel extract, 1 part of sodium citrate, 10 parts of coconut oil fatty acid diethanolamide, and 50 parts of water.
所述柚子皮提取物是通过以下步骤获得的：将柚子皮晒干后置于乙醇溶液中，回流萃取60-80min；过滤，将乙醇进行浓缩，进行喷雾干燥后得到柚子皮萃取物。The grapefruit peel extract is obtained by the following steps: drying the grapefruit peel and placing it in an ethanol solution, and refluxing for 60-80min; filtering, concentrating the ethanol, and spray-drying to obtain a grapefruit peel extract.
所述除油剂是通过以下步骤获得的：将水加热至50-60℃，加入面粉和柚子皮提取物，充分搅拌混合后，加入柠檬酸，然后再加入聚丙烯酰胺和椰子油脂肪酸二乙醇酰胺，搅拌混合后得到除油剂。The degreasing agent is obtained by heating water to 50-60 ° C, adding flour and grapefruit peel extract, stirring and mixing thoroughly, adding citric acid, and then adding polyacrylamide and coconut oil fatty acid diethanol The amide is stirred and mixed to obtain a degreaser.
实施例2Example 2
一种阀门的制作方法，包括以下几个步骤：A valve manufacturing method includes the following steps:
(1)制作模具：根据阀门的形状制作模具，模具上设置有冒口和浇口；(1) Make a mold: Make a mold according to the shape of the valve, and a riser and a gate are set on the mold;
(2)型砂造型：在模具周围采用耐热型砂制作砂型，取出模具，得到砂型；(2) Molding sand molding: Use heat-resistant molding sand to make sand molds around the molds, take out the molds, and obtain sand molds;
(3)熔炼：将钢材置于三相电弧炉中，升温至1500-1650℃，转入脱碳炉，通入氧气，同时，加入精炼剂，得到钢液；(3) Melting: Put the steel in a three-phase electric arc furnace, raise the temperature to 1500-1650 ° C, transfer it to a decarburization furnace, pass in oxygen, and add a refining agent to obtain a molten steel;
(4)浇注：往钢液中加入孕育剂，反应5-8min后，往砂型中浇注钢液，浇注温度为1500-1600℃；(4) Pouring: add inoculant to the molten steel, and after 5-8 minutes of reaction, pouring molten steel into the sand mold, pouring temperature is 1500-1600 ℃;
(5)冷却：快速冷却至800-900℃，保温10-20min；快速降温至350-400℃，保温20-30min；快速冷却至室温后；清理阀门表面，切除浇口、冒口、铲磨毛刺和披缝等凸出物，再次清理残砂；(5) Cooling: fast cooling to 800-900 ℃, holding time for 10-20min; fast cooling to 350-400 ℃, holding temperature for 20-30min; after fast cooling to room temperature; clean the valve surface, cut off the gate, riser, shovel Projections such as burrs and quilts, clean up the residual sand again;
(6)回火：将阀门加热至350-400℃，保温20-30min；冷却至室温后加热至600-700℃，保温10-15min；缓慢冷却至室温；(6) Tempering: Heat the valve to 350-400 ° C for 20-30min; cool to room temperature and heat to 600-700 ° C for 10-15min; slowly cool to room temperature;
(7)除油：将阀门置于除油剂中浸泡30-40min，冲洗烘干后即可得到阀门。(7) Degreasing: Soak the valve in a degreasing agent for 30-40min, and then rinse and dry to get the valve.
所述精炼剂包括以下重量份数的原料：氟化钠15份、氯化镁15份、氯化钾5份、氟化钡10份、碳酸铝2份和氧化钙1份。The refining agent includes the following raw materials in parts by weight: 15 parts of sodium fluoride, 15 parts of magnesium chloride, 5 parts of potassium chloride, 10 parts of barium fluoride, 2 parts of aluminum carbonate, and 1 part of calcium oxide.
所述孕育剂包括以下重量份数的原料：铁5份、钙5份、铝5份、锶3份、钡3份和镧3份。The inoculant includes the following raw materials in parts by weight: 5 parts of iron, 5 parts of calcium, 5 parts of aluminum, 3 parts of strontium, 3 parts of barium, and 3 parts of lanthanum.
所述除油剂包括以下重量份数的原料：面粉3份、聚丙烯酰胺15份、柚子皮提取物15份、柠檬酸钠3份、椰子油脂肪酸二乙醇酰胺15份和水40份。The degreaser includes the following raw materials in parts by weight: 3 parts of flour, 15 parts of polyacrylamide, 15 parts of grapefruit peel extract, 3 parts of sodium citrate, 15 parts of coconut oil fatty acid diethanolamide, and 40 parts of water.
所述柚子皮提取物是通过以下步骤获得的：将柚子皮晒干后置于乙醇溶液中，回流萃取60-80min；过滤，将乙醇进行浓缩，进行喷雾干燥后得到柚子皮萃取物。The grapefruit peel extract is obtained by the following steps: drying the grapefruit peel and placing it in an ethanol solution, and refluxing for 60-80min; filtering, concentrating the ethanol, and spray-drying to obtain a grapefruit peel extract.
所述除油剂是通过以下步骤获得的：将水加热至50-60℃，加入面粉和柚子皮提取物，充分搅拌混合后，加入柠檬酸，然后再加入聚丙烯酰胺和椰子油脂肪酸二乙醇酰胺，搅拌混合后得到除油剂。The degreasing agent is obtained by heating water to 50-60 ° C, adding flour and grapefruit peel extract, stirring and mixing thoroughly, adding citric acid, and then adding polyacrylamide and coconut oil fatty acid diethanol The amide is stirred and mixed to obtain a degreaser.
实施例3Example 3
一种阀门的制作方法，包括以下几个步骤：A valve manufacturing method includes the following steps:
(1)制作模具：根据阀门的形状制作模具，模具上设置有冒口和浇口；(1) Make a mold: Make a mold according to the shape of the valve, and a riser and a gate are set on the mold;
(2)型砂造型：在模具周围采用耐热型砂制作砂型，取出模具，得到砂型；(2) Molding sand molding: Use heat-resistant molding sand to make sand molds around the molds, take out the molds, and obtain sand molds;
(3)熔炼：将钢材置于三相电弧炉中，升温至1500-1650℃，转入脱碳炉，通入氧气，同时，加入精炼剂，得到钢液；(3) Melting: Put the steel in a three-phase electric arc furnace, raise the temperature to 1500-1650 ° C, transfer it to a decarburization furnace, pass in oxygen, and add a refining agent to obtain a molten steel;
(4)浇注：往钢液中加入孕育剂，反应5-8min后，往砂型中浇注钢液，浇注温度为1500-1600℃；(4) Pouring: add inoculant to the molten steel, and after 5-8 minutes of reaction, pouring molten steel into the sand mold, pouring temperature is 1500-1600 ℃;
(5)冷却：快速冷却至800-900℃，保温10-20min；快速降温至350-400℃，保温20-30min；快速冷却至室温后；清理阀门表面，切除浇口、冒口、铲磨毛刺和披缝等凸出物，再次清理残砂；(5) Cooling: fast cooling to 800-900 ℃, holding time for 10-20min; fast cooling to 350-400 ℃, holding temperature for 20-30min; after fast cooling to room temperature; clean the valve surface, cut off the gate, riser, shovel Projections such as burrs and quilts, clean up the residual sand again;
(6)回火：将阀门加热至350-400℃，保温20-30min；冷却至室温后加热至600-700℃，保温10-15min；缓慢冷却至室温；(6) Tempering: Heat the valve to 350-400 ° C for 20-30min; cool to room temperature and heat to 600-700 ° C for 10-15min; slowly cool to room temperature;
(7)除油：将阀门置于除油剂中浸泡30-40min，冲洗烘干后即可得到阀门。(7) Degreasing: Soak the valve in a degreasing agent for 30-40min, and then rinse and dry to get the valve.
所述精炼剂包括以下重量份数的原料：氟化钠12份、氯化镁12份、氯化钾8份、氟化钡12份、碳酸铝5份和氧化钙3份。The refining agent includes the following raw materials in parts by weight: 12 parts of sodium fluoride, 12 parts of magnesium chloride, 8 parts of potassium chloride, 12 parts of barium fluoride, 5 parts of aluminum carbonate, and 3 parts of calcium oxide.
所述孕育剂包括以下重量份数的原料：铁2份、钙2份、铝8份、锶2份、钡2份和镧2份。The inoculant includes the following raw materials in parts by weight: 2 parts of iron, 2 parts of calcium, 8 parts of aluminum, 2 parts of strontium, 2 parts of barium, and 2 parts of lanthanum.
所述除油剂包括以下重量份数的原料：面粉5份、聚丙烯酰胺12份、柚子皮提取物12份、柠檬酸钠2份、椰子油脂肪酸二乙醇酰胺12份和水45份。The degreaser includes the following raw materials in parts by weight: 5 parts of flour, 12 parts of polyacrylamide, 12 parts of grapefruit peel extract, 2 parts of sodium citrate, 12 parts of coconut oil fatty acid diethanolamide, and 45 parts of water.
所述柚子皮提取物是通过以下步骤获得的：将柚子皮晒干后置于乙醇溶液中，回流萃取60-80min；过滤，将乙醇进行浓缩，进行喷雾干燥后得到柚子皮萃取物。The grapefruit peel extract is obtained by the following steps: drying the grapefruit peel and placing it in an ethanol solution, and refluxing for 60-80min; filtering, concentrating the ethanol, and spray-drying to obtain a grapefruit peel extract.
所述除油剂是通过以下步骤获得的：将水加热至50-60℃，加入面粉和柚子皮提取物，充分搅拌混合后，加入柠檬酸，然后再加入聚丙烯酰胺和椰子油脂肪酸二乙醇酰胺，搅拌混合后得到除油剂。The degreasing agent is obtained by heating water to 50-60 ° C, adding flour and grapefruit peel extract, stirring and mixing thoroughly, adding citric acid, and then adding polyacrylamide and coconut oil fatty acid diethanol The amide is stirred and mixed to obtain a degreaser.
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和变形，这些改进和变形也应视为本发明的保护范围。The above is only a preferred embodiment of the present invention. It should be noted that, for those of ordinary skill in the art, without departing from the technical principles of the present invention, several improvements and deformations can be made. These improvements and deformations It should also be regarded as the protection scope of the present invention.

Claims (6)

  1. 一种阀门的制作方法，其特征是，包括以下几个步骤：A method for manufacturing a valve is characterized in that it includes the following steps:
    (1)制作模具：根据阀门的形状制作模具，模具上设置有冒口和浇口；(1) Make a mold: Make a mold according to the shape of the valve, and a riser and a gate are set on the mold;
    (2)型砂造型：在模具周围采用耐热型砂制作砂型，取出模具，得到砂型；(2) Molding sand molding: Use heat-resistant molding sand to make sand molds around the molds, take out the molds, and obtain sand molds;
    (3)熔炼：将钢材置于三相电弧炉中，升温至1500-1650℃，转入脱碳炉，通入氧气，同时，加入精炼剂，得到钢液；(3) Melting: Put the steel in a three-phase electric arc furnace, raise the temperature to 1500-1650 ° C, transfer it to a decarburization furnace, pass in oxygen, and add a refining agent to obtain a molten steel;
    (4)浇注：往钢液中加入孕育剂，反应5-8min后，往砂型中浇注钢液，浇注温度为1500-1600℃；(4) Pouring: add inoculant to the molten steel, and after 5-8 minutes of reaction, pouring molten steel into the sand mold, pouring temperature is 1500-1600 ℃;
    (5)冷却：快速冷却至800-900℃，保温10-20min；快速降温至350-400℃，保温20-30min；快速冷却至室温后；清理阀门表面，切除浇口、冒口、铲磨毛刺和披缝等凸出物，再次清理残砂；(5) Cooling: fast cooling to 800-900 ℃, holding time for 10-20min; fast cooling to 350-400 ℃, holding temperature for 20-30min; after fast cooling to room temperature; clean the valve surface, cut off the gate, riser, shovel Projections such as burrs and quilts, clean up the residual sand again;
    (6)回火：将阀门加热至350-400℃，保温20-30min；冷却至室温后加热至600-700℃，保温10-15min；缓慢冷却至室温；(6) Tempering: Heat the valve to 350-400 ° C for 20-30min; cool to room temperature and heat to 600-700 ° C for 10-15min; slowly cool to room temperature;
    (7)除油：将阀门置于除油剂中浸泡30-40min，冲洗烘干后即可得到阀门。(7) Degreasing: Soak the valve in a degreasing agent for 30-40min, and then rinse and dry to get the valve.
  2. 根据权利要求1所述的一种阀门的制作方法，其特征是，所述精炼剂包括以下重量份数的原料：氟化钠10-15份、氯化镁10-15份、氯化钾5-10份、氟化钡10-15份、碳酸铝2-6份和氧化钙1-5份。The method for manufacturing a valve according to claim 1, wherein the refining agent comprises the following raw materials in parts by weight: 10-15 parts of sodium fluoride, 10-15 parts of magnesium chloride, and 5-10 parts of potassium chloride Parts, barium fluoride 10-15 parts, aluminum carbonate 2-6 parts and calcium oxide 1-5 parts.
  3. 根据权利要求1所述的一种阀门的制作方法，其特征是，所述孕育剂包括以下重量份数的原料：铁1-5份、钙1-5份、铝5-10份、锶1-3份、钡1-3份和镧1-3份。The method for manufacturing a valve according to claim 1, wherein the inoculant comprises the following raw materials in parts by weight: 1-5 parts of iron, 1-5 parts of calcium, 5-10 parts of aluminum, and strontium 1 -3 parts, 1-3 parts barium and 1-3 parts lanthanum.
  4. 根据权利要求1所述的一种阀门的制作方法，其特征是，所述除油剂包括以下重量份数的原料：面粉3-8份、聚丙烯酰胺10-15份、柚子皮提取物10-15份、柠檬酸钠1-3份、椰子油脂肪酸二乙醇酰胺10-15份和水40-50份。The method for manufacturing a valve according to claim 1, wherein the degreasing agent comprises the following raw materials in parts by weight: 3-8 parts of flour, 10-15 parts of polyacrylamide, and 10 grapefruit peel extracts -15 parts, sodium citrate 1-3 parts, coconut oil fatty acid diethanolamide 10-15 parts and water 40-50 parts.
  5. 根据权利要求4所述的一种阀门的制作方法，其特征是，所述柚子皮提取物是通过以下步骤获得的：将柚子皮晒干后置于乙醇溶液中，回流萃取60-80min；过滤，将乙醇进行浓缩，进行喷雾干燥后得到柚子皮萃取物。The method for manufacturing a valve according to claim 4, wherein the grapefruit peel extract is obtained by the following steps: drying the grapefruit peel and placing it in an ethanol solution, and extracting it under reflux for 60-80min; filtering The ethanol was concentrated and spray-dried to obtain a grapefruit peel extract.
  6. 根据权利要求4或5所述的一种阀门的制作方法，其特征是，所述除油 剂是通过以下步骤获得的：将水加热至50-60℃，加入面粉和柚子皮提取物，充分搅拌混合后，加入柠檬酸，然后再加入聚丙烯酰胺和椰子油脂肪酸二乙醇酰胺，搅拌混合后得到除油剂。The method for manufacturing a valve according to claim 4 or 5, wherein the degreasing agent is obtained by the following steps: heating water to 50-60 ° C, adding flour and grapefruit peel extract, and sufficiently After stirring and mixing, citric acid is added, and then polyacrylamide and coconut oil fatty acid diethanolamide are added. After stirring and mixing, a degreaser is obtained.
PCT/CN2018/098918 2018-08-06 2018-08-06 Valve manufacturing method WO2020029001A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001006023A1 (en) * 1999-07-15 2001-01-25 Hatch Associates Ltd. Method and system of protecting easily oxidized metals melts like molten magnesium by 'in situ' generation of boron trifluoride gas
CN104028707B (en) * 2014-05-19 2016-03-16 安徽金大仪器有限公司 A kind of preparation method of metal valve
CN107083518A (en) * 2017-06-20 2017-08-22 合肥博创机械制造有限公司 A kind of casting technique of steel alloy valve
CN107716858A (en) * 2017-11-14 2018-02-23 张剑 A kind of production technology of carbon steel valve
CN107747642A (en) * 2017-11-14 2018-03-02 曹安飞 A kind of corrosion-and high-temp-resistant valve of gas pipeline

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001006023A1 (en) * 1999-07-15 2001-01-25 Hatch Associates Ltd. Method and system of protecting easily oxidized metals melts like molten magnesium by 'in situ' generation of boron trifluoride gas
CN104028707B (en) * 2014-05-19 2016-03-16 安徽金大仪器有限公司 A kind of preparation method of metal valve
CN107083518A (en) * 2017-06-20 2017-08-22 合肥博创机械制造有限公司 A kind of casting technique of steel alloy valve
CN107716858A (en) * 2017-11-14 2018-02-23 张剑 A kind of production technology of carbon steel valve
CN107747642A (en) * 2017-11-14 2018-03-02 曹安飞 A kind of corrosion-and high-temp-resistant valve of gas pipeline

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