6061 Aluminum Die Casting with Surface Treatment

• Model NO.: DK-die casting
• Die Casting Method: Precision Die Casting
• Machining: CNC Machining
• Surface Preparation: Polishing
• Tolerance Grade: 6
• Certification: CE, ISO 9001:2008
• Production Time: 45days
• Size: Customize
• Casting Type: Die Casting
• Transport Package: Cardboard Box + Crate
• Origin: China

• Die Casting Machine Type: Hot Chamber Die Casting Machine
• Application: Auto Parts
• Material: Aluminum Alloy
• Pressure Chamber Structure: Horizontal
• Casting Surface Quality Level: 3
• Sample Time: 30days
• Service: OEM/ODM
• Unit Weight: 0.01kg-100kg
• Trademark: DK
• Specification: steel/aluminum/brass/bronze
• HS Code: 7616100000

aluminum die casting with surface treatment

Product basic description

Our products are mainly used in valve industries.We can provide many kinds of casting parts/stamping parts/machining parts and forging parts.
1.  Aluminum casting, sand casting, die casting, gravity casting, high pressure die casting, low pressure die casting, forging, stamping, machining.

2.  Applied software for specification drawings: Auto CAD, Solidworks.

3.  Precision machining: CNC, milling machine, drilling machine, numerical lathe, all types of lathe.

4.  Surface finish process: polishing, sand blasting, heat treatment, painting, powder coating, anodizing, electroplating, mirror polishing.

5.  Good quality and strict delivery time.

We can read CAD, E-drawing and Pro-E files and use CAD as assistant design for customers. Staffs of DK metals are composed of experienced engineers, metallurgist and professional salesmen with engineering background.DK has strong quality assurance capability. We have in-house CMM, Spectrometer, 2-D projection machine, Roughness tester, Hardness tester, Thickness tester, NDT inspection machines and dozens of normal inspection tools.

We deeply knows quality is key problem of engineering products. DK is an ISO9001:2008 certified company. Our factories are mostly ISO9002, QS9000 or ISO/TS16949 certified. Except for internal control of our factories, DK metals is also involved in QC process of products that we developed. This has ensured our products to earn great reputation from our customers.

 

Pyrimidine series intermediates

Pyrimidine, also known as 1,3-diazepine, is a heterocyclic compound with the chemical formula C4H4N2. Pyrimidine is formed by replacing 2 carbons in the meta-position of benzene with 2 nitrogen atoms, and is a diazine. Like pyridine, pyrimidine retains its aromaticity.

Introduction

Name: Pyrimidine

Molecular formula: C4H4N2

Molar mass: 80.09 g/mol

Density: 1.016 g/ml

Melting point: 20 - 22 °C

Boiling point: 123 - 124 °C

CAS Number: 289-95-2

EINECS Number: 206-026-0

SMILES: C1=NC=NC=C1

Application

(1) Anticancer drugs. In the selection of anticancer substances, it is crucial that there are significant differences between tumor tissues and normal tissues, that is, they have a certain ability to recognize target cells. Porphyrin compounds have special affinity for cancer cells due to their unique structures, and they can selectively stay in cancer tissues. The research of it as a localizing agent and a drug for diagnosis and treatment of cancer has already aroused great interest of chemists, medical scientists and biologists. 5-Fluorouracil is a widely used anti-metabolite and anti-tumor drug in clinic. It has inhibitory effect on various tumors. It has good clinical effect in the treatment of colorectal cancer, gastric cancer, breast cancer and other cancers. Polyesters, polyester hydrocarbons, polyester amides, deoxyribonucleic acid, furans, 5-fluorouracil derivatives linked to nitroxide radicals all have antitumor effects.

(2) Anti-AIDS drugs. Viral diseases have become one of the most harmful diseases to human beings, especially the spread of AIDS, which has aroused widespread concern. There are many kinds of anti-AIDS drugs that have been approved by the US Food Administration (FDA), many of which are nucleoside compounds. In order to reduce the toxicity of drugs and improve their efficacy, scientists have begun to turn their attention to the study of non-nucleoside compounds, and such compounds have become the focus of antiviral drug research.

Synthetic method

Pyrimidines and various substituted pyrimidines are synthesized in a variety of ways. For example, barbituric acid (2,4,6-trihydroxypyrimidine) can be obtained by the condensation of urea and diethyl malonate under the action of sodium alkoxide. Barbituric acid and phosphorus oxychloride are heated together to obtain 2,4,6-trichloropyrimidine, which reacts with sodium methoxide to obtain trimethoxypyrimidine. Chloropyrimidines react with ammonia or primary and secondary amines to generate the corresponding aminopyrimidines. The derivatives of pyrimidine, cytosine, uracil and thymine, are the constituent parts of nucleic acid and deoxynucleic acid, and the pyrimidine part in the vitamin B1 molecule is a 4-amino-2-methyl-5-pyrimidine methyl group. Many oral long-acting sulfa drugs are derivatives of pyrimidine and its isomers.

The 2,4-dichloropyrimidine is prepared by reduction reaction in the presence of palladium, magnesium oxide and activated carbon.

Pyrimidine Series Intermediates,2-Chloro-5-Methylpyrimidine,5-Bromo-2-chloropyrimidine,2 4-Dichloro-5-Methylpyrimidine

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