投资铸造Quality Control

质量是所有产品或生产的核心。质量控制将在每个生产步骤中。在投资行业中相同。自1997年成立以来,我们为投资质量控制和标准而感到自豪。我们确保严格测试和合格的每种产品。每个客户都给我们进行了高昂的评估。

在我们的铸造公司中,我们严格地实施了质量控制系统和根据ISO质量管理系统的措施。我们公司的Departionme结构很明显,每个部门都有每个部门的职责和工作流程。特别是在质量控制中,每个过程中都有三个人。它们是现场检查,随机检查和最终检查。

Each order has a strict set of QC flow charts and procedures. From product design, mold making, sample production, bulk production, inspection, packaging, delivery. Every process is well documented. Every customer, every order, we will create a set of files record and save. Our earliest file was made in 1997.From that time,we have started recording each order quality control in our factory.

投资铸造质量控制测试工具和检查项目

In terms of testing tools, we have different types and specifications of inspection tools and advanced testing equipment.

  • 游标卡尺
  • 协调测量机(CMM)
  • Height gage
  • 线程量规,自制或客户等。

In inspection items:

  • Quality Control & Inspection of Equipment
  • 蜡检查以及最终检查。
  • 进行精确的物理和化学测试(非破坏性测试)
  • Spectrographic analysis
  • Analysical processes such as statistical process control and inspection.
  • 机械和物理测试设备
  • Corrosion Testing
  • 机械测试 - 拉伸,冲击,硬度测试。
  • 蜡的过程控制和泥浆

Raw118宝金博 质量控制

From wax, steel materials. wax, and glue, and additional materials. It will be shown the Quality certificate when we get it from our suppliers. AND we will make the second inspection when raw materials arrived. Each material has its own quality inspection record.

投资铸造外观质量控制。

投资铸件的常见表面缺陷是尺度,空气孔,沙孔,裂缝,收缩腔等。这是有害缺陷。可以用眼睛检查。在我们的投资铸造厂中,它是100%进行的,需要确保投资铸件的表面没有缺陷。

Our casting quality control expert. any castings with such defects must be picked out and can not be delivered to our customers.

During the final phase of inspection, parts are inspected and compared to the casting quality control plan and written process instructions. Lastly, the casting quality results are documented and stored .to record all the products made from our foundry.

化学组成投资铸造质量控制

We have a spectrometer in our investment casting foundry. Each pouring, we will take a part of. Before the melting liquid is poured from the pot, we will take a sample of molten metal. the casting quality is evaluated in the spectrometer. If the sample is qualified, the pouring will be continuing. If not or needed, the pouring materials will be added to other alloying elements to meet the alloy melt into the required specification. Then make the second test again. Then another coupon is tested and certified to ensure proper chemical composition.

Every alloy melt chemical composition will be tested and recorded. Our Casting alloys standard is from ASTM, AMS alloy specifications. The alloy composition is analyzed by spectrographic atomic absorption (spectrometer), or x-ray fluorescence analysis.

Investment casting Mechanical Properties Quality Inspection

为了确认投资铸件的特性是正确的,进行了机械测试以批准铸造。我们将从下一方面进行机械性能测试:

Hardness testing 非破坏性程序,演示了alloy’s machinability and wears resistance.
Tensile testing A destructive casting quality test that provides ultimate tensile strength, yield strength, elongation, and reduction of the material test specimen.
Load testing This test is performed on the entire casting lot to evaluate its casting quality and to verify that the cast part can carry (deflect) the required or specified structural load when applied. Pressure-containing parts can be hydraulically tested to a proof load or destruction maximum limit.

Investment casting Quality Control in Dimension

投资铸造是各种组件的OEM铸造过程。由于铸造维度的差异是制造过程的固有部分,因此不同的产品具有不同的尺寸和公差要求。由于这些差异,可能很难期望整个生产量中的严格尺寸。为了获得具有理想尺寸和尺寸的精确产品,以获得高精度。我们必须通过进一步的加工来获得结果。在这种情况下,维度检查对于保证至关重要。以下是我们铸造厂中使用的常见维度检查方法:

Measuring tools it is the most direct and simple way to test the dimensions and tolerances by hand. Common used measuring tools for investment castings include vernier caliper, depth indicator, dial indicator, etc. To ensure qualified products, we need to test the product by measuring tools one by one according to the drawing.
Testing guage It is made according to the sizes which will probably affect the assembly or use of products. For threaded holes, we can buy go and not go gauge according to the thread specification directly from the market. Testing guage is mostly used when the dimensions can not be tested by measuring tools directly thread and plug gauges,
CMM It is the most accurate way to test the dimensions of products. But it will add the cost of manufacturers for the high cost of CMM equipment and only few foundries have such instruments. We have our own CMM machine which is made of German.

Non-Destructive Casting Quality Testing and Inspection

NDT (Non-Destructive Testing) allows us the capability of testing the quality of an investment casting part without any destroying. The most common methods available are listed below:

染料渗透剂检查:有时很难通过肉眼找到表面缺陷,例如微小的裂缝,毛孔或其他表面缺陷。DPI是一种用于所有合金投资铸件表面缺陷的测试方法。在此检查过程中,将带有颜色的染料溶液应用于铸件的表面。悬浮在穿透油中的染料进入表面缺陷。当应用特殊开发人员时,在特殊的“蓝色”灯光下清楚地表明了缺陷。该解决方案是由于表面上产生的孔隙度或气体而检测到任何裂缝或其他表面缺陷。

不管你的最终应用程序,每一个公关ecision investment cast component will be examined, inspected, and approved before sending. We wish we are your first source choosing for precision investment cast parts. Through the above description, you have great confidence in our quality control. Contact us and tell us what you need.

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