A kind of leadless environment-friendly copper-base alloy pipe and manufacture method thereof
Technical field
The present invention relates to compo pipe production field, particularly relate to a kind of leadless environment-friendly copper-base alloy pipe, and the manufacture method of this compo pipe.
Background technology
Existing tinbronze material often adds lead element to realize its easy chip performance, leaded tinbronze has higher wear resistance and good workability, fine weldering and good welding performance, mainly for the manufacture of bearing the part of friction in navigate empty ﹑ automobile and other industrial sectors and carrying out necessary welding.But due to the characteristic of lead, when carrying out hot-work, very easily produce red brittleness, therefore cold working can only be carried out, reduce the workability of compo pipe, and lead has very large harm to environment, along with significantly improving of environmental consciousness, the bell metal containing lead element can not meet the requirement of domestic and international high-end market.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide one not leaded, the environmental protection copper-base alloy pipe that workability is strong, and the manufacture method of this compo pipe.
For achieving the above object, the technical solution adopted in the present invention is as follows:
A kind of leadless environment-friendly copper-base alloy pipe, be made up of the component of following weight percentage: zinc 1% ~ 7%, tin 0.5% ~ 7%, silicon 0.5% ~ 6%, phosphorus 0.05% ~ 0.25%, manganese 0.01% ~ 0.15%, surplus is copper.
Further, the weight percentage proportioning of each component is as follows: zinc 2% ~ 6%, tin 1.5% ~ 6%, silicon 1% ~ 5%, phosphorus 0.05% ~ 0.25%, manganese 0.01% ~ 0.15%, and surplus is copper.
Further, the weight percentage proportioning of each component is as follows: zinc 3% ~ 5%, tin 2.5% ~ 5%, silicon 2% ~ 4%, phosphorus 0.05% ~ 0.25%, manganese 0.01% ~ 0.15%, and surplus is copper.
Further, the weight percentage proportioning of each component is as follows: zinc: 4.5%, tin: 4%, silicon: 3%, phosphorus: 0.2%, manganese: 0.08%, and surplus is copper.
Further, the manufacture method of described leadless environment-friendly copper-base alloy pipe, comprises following steps:
1) according to proportioning, Tong ﹑ phosphorus, Xi ﹑ Xin ﹑ Gui ﹑ manganese is placed in main frequency furnace, be heated to 1250 DEG C ~ 1300 DEG C completely fusing after, be cooled to 1200 DEG C.
2), after the alloy liquid melted completely fully being stirred, cover high purity flaky graphite powder in the above and be oxidized to prevent it, and be incubated.
3) 1200 DEG C of insulations are after 1.2 ~ 1.5 hours, in electric furnace, take out sample, adopt direct-reading spectrometer to carry out three to five composition inspections, to determine that its alloying constituent is within specialized range to sample.
4) after being incubated 40 ~ 60 minutes further, be again warming up to 1300 DEG C, and open the vibrating device of main frequency furnace, adopt the method for continuous casting and rolling to produce alloy pipe.
5) with box-annealing furnace, anneal is carried out to copper pipe.
6) the alloy pipe ultrasonic reflectoscope alloy pipe after having annealed is carried out slight crack and pore flaw detection, melt down to choose substandard product.
Further, step 2) described in stir adopt graphite rod.
Further, step 2) described in the thickness of Graphite Powder 99 be 11 ~ 13cm.
Further, step 4) described in the vibrational frequency of vibrating device of main frequency furnace be 1 time/second.
Further, step 4) described in the external diameter of alloy pipe be Φ 55mm, internal diameter is Φ 10mm, and length is 4000mm.
Further, step 5) described in the annealing temperature of anneal be 200 ~ 300 DEG C, annealing time is 20 ~ 30 minutes.
Adopt above technical scheme, traditional lead element is replaced with element silicon by the present invention, according to the composition proportion that zinc, tin, silicon, phosphorus, manganese, copper are certain, suitable temperature, completed the production of alloy pipe by the production technique of continuous casting and rolling, the tin bronze alloys tubing containing lead element can be replaced completely.And the present invention adopts the production technique of continuous casting and rolling, eliminate the billet process in traditional processing technology and annealing pressing steps.Therefore the present invention not only obtains the alternative existing leadless environment-friendly alloy material containing Redford alloy, and shortens the production cycle, improves production efficiency, greatly reduces production cost.
Accompanying drawing explanation
Fig. 1 is production technological process of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1, a kind of leadless environment-friendly copper-base alloy pipe, is made up of the component of following weight percentage: zinc: 2%, tin: 0.5%, silicon: 4.5%, phosphorus: 0.25%, manganese: 0.01%, and surplus is copper.Its manufacturing process flow as shown in Figure 1, carries out following steps successively:
Each component is weighed up by proportioning, and be placed in main frequency furnace be heated to 1250 DEG C fusing after, stir with graphite rod, and cover the thick high purity flaky graphite powder of 12cm thereon, anti-oxidation, be incubated 1 hour, detect alloying constituent whether in specialized range, detection complete and qualified after, continue insulation about 40 minutes, again 1300 DEG C are warming up to, open the vibrating device of main frequency furnace, vibrational frequency is 1 time/second, adopting the method for continuous casting and rolling to produce external diameter is Φ 55mm, internal diameter is Φ 10mm, length is the alloy pipe of 4000mm, at 200 DEG C, anneal is carried out to metal pipe material, annealing time is 20 minutes, rear ultrasonic reflectoscope alloy pipe of having annealed carries out slight crack and pore flaw detection, salable product carry out packed and transported, substandard product melts down.
Gained leadless environment-friendly copper-base alloy pipe is carried out wear resistance and hardness test, and test its physicals, acquired results is as shown in table 1.
Embodiment 2, a kind of leadless environment-friendly copper-base alloy pipe, is made up of the component of following weight percentage: zinc: 1%, tin: 7%, silicon: 1.5%, phosphorus: 0.1%, manganese: 0.1%, and surplus is copper.Its manufacturing process flow as shown in Figure 1, carries out following steps successively:
Each component is weighed up by proportioning, and be placed in main frequency furnace be heated to 1290 DEG C fusing after, stir with graphite rod, and cover the thick high purity flaky graphite powder of 11cm thereon, anti-oxidation, be incubated 1.3 hours, detect alloying constituent whether in specialized range, detection complete and qualified after, continue insulation about 50 minutes, again 1300 DEG C are warming up to, open the vibrating device of main frequency furnace, vibrational frequency is 1 time/second, adopting the method for continuous casting and rolling to produce external diameter is Φ 55mm, internal diameter is Φ 10mm, length is the alloy pipe of 4000mm, at 260 DEG C, anneal is carried out to metal pipe material, annealing time is 25 minutes, rear ultrasonic reflectoscope alloy pipe of having annealed carries out slight crack and pore flaw detection, salable product carry out packed and transported, substandard product melts down.
Gained leadless environment-friendly copper-base alloy pipe is carried out wear resistance and hardness test, and test its physicals, acquired results is as shown in table 1.
Embodiment 3, a kind of leadless environment-friendly copper-base alloy pipe, is made up of the component of following weight percentage: zinc: 4.5%, tin: 4%, silicon: 3%, phosphorus: 0.2%, manganese: 0.08%, and surplus is copper.Its manufacturing process flow as shown in Figure 1, carries out following steps successively:
Each component is weighed up by proportioning, and be placed in main frequency furnace be heated to 1300 DEG C fusing after, stir with graphite rod, and cover the thick high purity flaky graphite powder of 13cm thereon, anti-oxidation, be incubated 1.5 hours, detect alloying constituent whether in specialized range, detection complete and qualified after, continue insulation about 60 minutes, again 1300 DEG C are warming up to, open the vibrating device of main frequency furnace, vibrational frequency is 1 time/second, adopting the method for continuous casting and rolling to produce external diameter is Φ 55mm, internal diameter is Φ 10mm, length is the alloy pipe of 4000mm, at 300 DEG C, anneal is carried out to metal pipe material, annealing time is 30 minutes, rear ultrasonic reflectoscope alloy pipe of having annealed carries out slight crack and pore flaw detection, salable product carry out packed and transported, substandard product melts down.
Gained leadless environment-friendly copper-base alloy pipe is carried out wear resistance and hardness test, and test its physicals, acquired results is as shown in table 1.
Embodiment 4, a kind of leadless environment-friendly copper-base alloy pipe, is made up of the component of following weight percentage: zinc: 6%, tin: 5.5%, silicon: 6%, phosphorus: 0.05%, manganese: 0.05%, and surplus is copper.Its manufacturing process flow as shown in Figure 1, carries out following steps successively:
Each component is weighed up by proportioning, and be placed in main frequency furnace be heated to 1290 DEG C fusing after, stir with graphite rod, and cover the thick high purity flaky graphite powder of 11cm thereon, anti-oxidation, be incubated 1.3 hours, detect alloying constituent whether in specialized range, detection complete and qualified after, continue insulation about 40 minutes, again 1300 DEG C are warming up to, open the vibrating device of main frequency furnace, vibrational frequency is 1 time/second, adopting the method for continuous casting and rolling to produce external diameter is Φ 55mm, internal diameter is Φ 10mm, length is the alloy pipe of 4000mm, at 250 DEG C, anneal is carried out to metal pipe material, annealing time is 30 minutes, rear ultrasonic reflectoscope alloy pipe of having annealed carries out slight crack and pore flaw detection, salable product carry out packed and transported, substandard product melts down.
Gained leadless environment-friendly copper-base alloy pipe is carried out wear resistance and hardness test, and test its physicals, acquired results is as shown in table 1.
Embodiment 5, a kind of leadless environment-friendly copper-base alloy pipe, is made up of the component of following weight percentage: zinc: 7%, tin: 2%, silicon: 0.5%, phosphorus: 0.15%, manganese: 0.15%, and surplus is copper.Its manufacturing process flow as shown in Figure 1, carries out following steps successively:
Each component is weighed up by proportioning, and be placed in main frequency furnace be heated to 1300 DEG C fusing after, stir with graphite rod, and cover the thick high purity flaky graphite powder of 12cm thereon, anti-oxidation, be incubated 1.5 hours, detect alloying constituent whether in specialized range, detection complete and qualified after, continue insulation about 50 minutes, again 1300 DEG C are warming up to, open the vibrating device of main frequency furnace, vibrational frequency is 1 time/second, adopting the method for continuous casting and rolling to produce external diameter is Φ 55mm, internal diameter is Φ 10mm, length is the alloy pipe of 4000mm, at 280 DEG C, anneal is carried out to metal pipe material, annealing time is 25 minutes, rear ultrasonic reflectoscope alloy pipe of having annealed carries out slight crack and pore flaw detection, salable product carry out packed and transported, substandard product melts down.
Gained leadless environment-friendly copper-base alloy pipe is carried out wear resistance and hardness test, and test its physicals, acquired results is as shown in table 1.
Table 1 leadless environment-friendly copper-base alloy pipe performance comparison table
Leadless environment-friendly copper base alloy pipe manufacturing method provided by the invention adopts the production technique of continuous casting and rolling, eliminate the billet process in traditional processing technology and annealing pressing steps, through slight crack and pore flaw detection, qualified product carry out packed and transported, and substandard product melts down.
The above embodiment only have expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.