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北海机械铸造

北海市专业铸铁,铸铜,铸铝

北海市专业铸铁,铸铜,铸铝

产品描述:

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我们是北海市专业铸铁,铸铜,铸铝


公司秉承顾客至上、品量优先、诚信为本,铸造精品的经营理念, 期望真诚地与您合作,携手并肩共发展! 


我厂专业生产和销售各种牌号铸钢件、灰铸铁件和球墨铸铁件及其他铸件。 


生产造型采用普通煤粉砂、树脂砂造型等工艺手段,生产各类机床铸件、船用铸件、泵类铸件等。可生产最大铸件单重12吨左右。我厂有丰富的生产经验、专业的生产工艺和先进的技术作保证,可以满足不同铸件及不同用户的技术要求。 


1:北海铸铁业务如下:

①灰口铸铁。含碳量较高(2.7%~4.0%),碳主要以片状石墨形态存在,断口呈灰色,简称灰铁。熔点低(1145~1250℃),凝固时收缩量小,抗压强度和硬度接近碳素钢,减震性好。由于片状石墨存在,故耐磨性好。铸造性能和切削加工较好。用于制造机床床身、汽缸、箱体等结构件。其牌号以“HT”后面附两组数字。例如:HT20-40(第一数字表示最低抗拉强度,第二组数字表示最低抗弯强度)。

  ②白口铸铁。碳、硅含量较低,碳主要以渗碳体形态存在,断口呈银白色。凝固时收缩大,易产生缩孔、裂纹。硬度高,脆性大,不能承受冲击载荷。多用作可锻铸铁的坯件和制作耐磨损的零部件。

  ③可锻铸铁。由白口铸铁退火处理后获得,石墨呈团絮状分布,简称韧铁。其组织性能均匀,耐磨损,有良好的塑性和韧性。用于制造形状复杂、能承受强动载荷的零件。

  ④球墨铸铁。将灰口铸铁铁水经球化处理后获得,析出的石墨呈球状,简称球铁。碳全部或大部分以自由状态的球状石墨存在,断口成银灰色。比普通灰口铸铁有较高强度、较好韧性和塑性。其牌号以“QT”后面附两组数字表示,例如:QT45-5(第一组数字表示最低抗拉强度,第二组数字表示最低延伸率)。用于制造内燃机、汽车零部件及农机具等。

  ⑤蠕墨铸铁。将灰口铸铁铁水经蠕化处理后获得,析出的石墨呈蠕虫状。力学性能与球墨铸铁相近,铸造性能介于灰口铸铁与球墨铸铁之间。用于制造汽车的零部件。

  ⑥合金铸铁件。普通铸铁加入适量合金元素(如硅、锰、磷、镍、铬、钼、铜、铝、硼、钒、锡等)获得。合金元素使铸铁的基体组织发生变化,从而具有相应的耐热、耐磨、耐蚀、耐低温或无磁等特性。用于制造矿山、化工机械和仪器、仪表等的零部件。


2:北海铸铜业务如下:

铸铜铜雕都是采用失蜡法铸造,简单来说它就是将铜在高温炉里熔炼成符合一定要求的液体,然后浇筑进模具铸型里,经冷却凝固、清整处理后得到有和模具一样形状、尺寸铜雕塑艺术品。


3、北海锻铜业务如下:

金属液先低速或高速铸造充型进模具的型腔内,模具有活动的型腔面,它随着金属液的冷却过程加压锻造,既消除毛坯的缩孔缩松缺陷,也使毛坯的内部组织达到锻态的破碎晶粒。


4:北海铸铝业务如下:

 1.铸铝的强度影响:材质(不同的材质的铝合金力学性能各不一样) 2.铸造工艺对铝合金影响也比较大,在铸态情况下大约为:压铸的大于低压铸造大于金属型的大于砂铸的. 3.热处理对铸造铝合金机械性能有很大的改变:一些铝合金可以通过做固熔处理或人工时效来改变,具体方法得参照相关的技术资料,主要有T1T2T3TT4T5T6


We are Beihai professional cast iron, cast copper, cast aluminum






The company adheres to the business philosophy of customer first, quality first, integrity-based, and casting high-quality products. We sincerely hope to cooperate with you and develop hand in hand!






I plant specializing in the production and sale of various grades of steel castings, gray iron castings and ductile iron castings and other castings.






Production molding adopts ordinary coal powder sand, resin sand molding and other technological means to produce all kinds of machine tool castings, marine castings, pump castings, etc. The largest single weight of castings can be produced about 12 tons. Our factory has rich production experience, professional production process and advanced technology to ensure that it can meet the technical requirements of different castings and different users.






1: Beihai cast iron business is as follows:




① Grey cast iron. The carbon content is high (2.7% ~ 4.0%). The carbon mainly exists in the form of flake graphite, and the fracture is gray, which is called gray iron for short. It has low melting point (1145-1250 ℃), small shrinkage during solidification, close to carbon steel in compressive strength and hardness, and good shock absorption. Due to the existence of flake graphite, it has good wear resistance. The casting performance and cutting process are good. Used to manufacture machine bed, cylinder, box and other structural parts. Its brand number is followed by "HT" with two groups of numbers. For example: HT20-40 (the first number represents the minimum tensile strength and the second group represents the minimum bending strength).




② White cast iron. The content of carbon and silicon is low, the carbon is mainly in the form of cementite, and the fracture is silvery white. It is easy to produce shrinkage cavity and crack. High hardness and brittleness, unable to bear impact load. It is mainly used as the blank of malleable iron and wear-resistant parts.




③ Malleable iron. After annealing of white cast iron, graphite is distributed in floccules, which is called ductile iron for short. Its structure and properties are uniform, wear-resistant, with good plasticity and toughness. It is used to manufacture parts with complex shape and strong dynamic load.




④ Ductile iron. After spheroidizing the gray cast iron, the graphite is spheroidal, which is called nodular iron for short. All or most of the carbon exists as free spheroidal graphite with silver gray fracture surface. Compared with ordinary gray cast iron, it has higher strength, better toughness and plasticity. Its brand number is indicated by two groups of numbers attached to "QT", for example: qt45-5 (the first group of numbers represents the minimum tensile strength and the second group of numbers represents the minimum elongation). It is used to manufacture internal combustion engine, auto parts, agricultural machinery, etc.




⑤ Vermicular cast iron. The graphite of gray cast iron is vermicular after it is vermiculated. The mechanical properties are similar to that of nodular cast iron, and the casting properties are between gray cast iron and nodular cast iron. Parts used to make cars.




⑥ Alloy iron castings. Ordinary cast iron is obtained by adding some alloy elements (such as silicon, manganese, phosphorus, nickel, chromium, molybdenum, copper, aluminum, boron, vanadium, tin, etc.). Alloy elements make the matrix structure of cast iron change, so it has the corresponding characteristics of heat resistance, wear resistance, corrosion resistance, low temperature resistance or non magnetism. It is used to manufacture spare parts of mining, chemical machinery, instruments and meters, etc.






2: Beihai copper casting business is as follows:




Copper sculptures are all cast by wax loss method. In short, it is to melt copper in a high-temperature furnace into a liquid that meets certain requirements, and then pour it into the mold. After cooling, solidification and cleaning treatment, copper sculptures of the same shape and size as the mold can be obtained.






3. Beihai copper forging business is as follows:




The liquid metal is first poured into the cavity of the die by low-speed or high-speed casting, and the die has a movable cavity surface. With the cooling process of the liquid metal, pressure forging can not only eliminate the shrinkage and porosity defects of the blank, but also make the internal structure of the blank reach the broken grain of the forging state.






4: Beihai cast aluminum business is as follows:




1. The influence of cast aluminum strength: material (the mechanical properties of aluminum alloy of different materials are different) 2. The influence of casting process on aluminum alloy is also relatively large. In the as cast situation, it is about: the die-casting is larger than the low-pressure casting and larger than the metal mold and larger than the sand casting. 3. The heat treatment has a great change on the mechanical properties of cast aluminum alloy: some aluminum alloys can be treated by solid fusion or artificial aging Please refer to relevant technical data for specific methods, mainly T1  T2  t3t  T4  T5  T6


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地址:北海市海城区上海路包屋东4巷11号 电话:13877901983 
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